Search

Ketina Hirma Tchio-Nighie,1,2 Anthony Njimbia Chebe,1 Augustin Murhabazi Bashombwa,1– 3 Paul Ngu Nembo,4 Jerome Ateudjieu1,2,4 1Department of Health Research, M.A. SANTE (Meilleur Accès aux soins de Santé), Yaoundé, Cameroon; 2Department of Public Health, Faculty of Medicine and Pharmaceutical Sciences, University of Dschang, Dschang, Cameroon; 3Faculty of Medicine, Université de Kaziba, Kaziba, Democratic Republic of the Congo; 4Division of Health Operations Research, Ministry of Public Health, Yaounde, CameroonCorrespondence: Augustin Murhabazi Bashombwa, Faculty of Medicine, Université de Kaziba, Kaziba, Democratic Republic of the Congo, Email augumurhabazi@gmail.comBackground: Majority of deliveries occurring in the Cameroon part of the Lake Chad basin is assisted by traditional birth attendants (TBA). The aim of the present study was to assess if training and involving TBA in community-based Prevention of Mother to Child Transmission (PMTCT) interventions can contribute in improving targeted population access to these interventions.Methods: This was a retrospective cohort study that assessed among mothers of children aged 0– 24 months the effect of training and involving TBA in PMTCT activities. The exposed mother-child pairs were those inhabiting communities were TBA were trained and involved during the 24 previous months in PMTCT activities (exposed communities) while the non-exposed groups where those living in communities with no study intervention. Data were collected in households selected by stratified cluster random sampling from children’s mothers or guardians using a face-to-face administered questionnaire (undocumented) and from antenatal booklets (documented) used in health facilities to record antenatal care.Results: A total of 637 mothers-children couples were included, 416 (65.3%) in the exposed group and 221 (34.7%) in the control group. Exposed mother-child pairs had significantly higher documented access to mother antenatal HIV testing compared to the couples living in non-exposed communities with adjusted relative risk (ARR) of 4.20 (2.52– 6.99). The mean number of antenatal consultations was significantly higher in the exposed group (Student T-test =6.00, p= 0.000). However, this exposure to community with trained TBA increased but not significantly the proportion of pregnant women who benefit from antenatal consultations (ARR=0.94 (0.70– 1.25), p=0.678) and those who withdraw their HIV test results (X2 = 0.271, p=0.786).Conclusion: The training and involvement of TBA in delivering PMTCT interventions at the community level can improve population access to these interventions. The consistency of these findings should be tested in other communities in needs and with other health care interventions.Keywords: prevention of mother to child transmission of HIV, traditional birth attendants, antenatal care, HIV tests

Augustin Murhabazi Bashombwa,1,2 Ketina Hirma Tchio-Nighie,3 Carine Tchingué Mbianda,2 Ela Tchindebe Bouri,2 Aude Nanfak,3 Collins Buh Nkum,3 Jérôme Ateudjieu2– 4 1Faculty of Medicine, Université de Kaziba, Kaziba, Democratic Republic of Congo; 2Department of Public Health, Faculty of Medicine and Pharmaceutical Sciences, University of Dschang, Dschang, Cameroon; 3Department of Health Research, M.A. SANTE (Meilleur Accès aux Soins de Santé), Yaounde, Cameroon; 4Division of Health Operations Research, Ministry of Public Health, Yaounde, CameroonCorrespondence: Augustin Murhabazi Bashombwa, Tel +243 808395691, Email augumurhabazi@gmail.comIntroduction: Blood transfusion is a health care procedure that can expose the donor and receiver to risks. The knowledge and practices of healthcare personnel on blood transfusion are necessary to anticipate and/or prevent the occurrence of avoidable transfusion risks. The aim of this study was to assess the training needs of health personnel on blood donor selection procedure.Methods: We conducted a cross-sectional study targeting health personnel in health facilities that reported contributing in offering blood transfusion services in the West region of Cameroon between March and May 2022. A questionnaire administered face to face was used to collect data from the targeted health personnel exhaustively included from health facilities. Knowledge and practices were assessed by estimating the rate of correct answers. STATA software was used to analyze the data.Results: Of the 41 health facilities that reported offering blood transfusion services, 35 (85.3%) were covered. Category 5 and 4 health facilities were respectively 23 (65.7%) and 9 (25.7%). Among the 325 health personnel involved in transfusion, 302 (92.9%) were reached among which, 201 (66.6%) were female and 127 (42.1%) were nurses. Two hundred and ten (69.5%) had already received training on blood transfusion and 268 (88.7%) expressed a need for training on blood transfusion of which 139 (51.8%) on blood donors’ selection. Sixteen (5.3%) knew how to identify blood donor and 116 (38.4) knew the minimum required tests to be performed on the donors’ blood before the transfusion. Six (2.0%) out of 302 health personnel were able to select blood donors and identify minimum tests to be performed on donors’ blood.Conclusion: There is a real need for training of health personnel on the blood donor selection process. Health authorities should ensure that all health personnel involved in blood transfusion receive a minimum of training in blood donor selection and testing.Keywords: training needs, health personnel, selecting, blood donors

Background: The coronavirus pandemic coronavirus disease-19 (COVID-19) has affected the whole world, causing the lives of many victims. Africa has recorded more than a million cases and Cameroon around 18,600 cases (August 2020) since the first case was notified. The rapid spread of this disease (among other factors) could have contributed to creating a situation of fear and stigma among affected populations. It is, therefore, necessary to identify the characteristics of this stigma and its effect on the case management of this disease. Materials and Methods: We carried out a cross-sectional study with positive COVID-19 people at the Central Hospital of Yaoundé, Cameroon, from May 2020 to June 2020. A questionnaire adapted from the stigma index of persons living with human immunodeficiency virus and from the SAPHORA-MCO 2009 guide was administered to participants. Results: Among 138 patients with confirmed COVID-19 infection during the study, 134 (97%) accepted the study, 115 (85.8%) reported auto-stigmatisation, 29 (22%) indicated having been stigmatised by the community and 20 (15%) by medical personnel. Auto-stigmatisation increased the risk of seeking care late (odds ratio [OR] = 3.4 with a confidence interval [CI] of 0.99-11.5; P = 0.049), unlike stigma by the community, which tended to result in early care seeking, but not significantly (OR = 0.6 with a CI of 0.26-1.66; P = 0.479). Conclusion: Stigma is highly prevalent among patients affected by COVID-19. Action should be taken to address stigma to increase the overall adherence to disease control strategies. [ABSTRACT FROM AUTHOR]

Abstract Background Over the last decade, there has been a rapid increase in biomedical research in Cameroon. However, the question of whether these research projects target major health priorities, vulnerable populations and geographic locations at risk remains to be answered. The aim of this paper is to describe the state of biomedical research in Cameroon which is a key determinant that would guide future health care policies and promote equitable access to healthcare. Methods A documentary review of all approved protocols (proposals) of biomedical research projects, from 1997 through 2012, at the Cameroon National Ethics Committee. Protocols were reviewed systematically by independent reviewers and data were extracted on a grid. Data were analyzed by calculating proportions at 95% confidence interval, chi-square test (chi2) and p-values. Results Two thousand one hundred seventy two protocols were reviewed for data extraction. One thousand three hundred ninety-five (64.7%) were student projects, 369 (17.0%) projects had international sponsors, and 1528 (72.4%) were hospital-based studies. The most targeted domain was the fight against diseases 1323 (61.3%); mostly HIV 342 (25.8%) and Malaria 136 (10.3%). Over half of the studies were concentrated in the Centre region 1242 (57.2%), with the least projects conducted in the Northern region 15 (0.7%). There was strong evidence that international and local sponsors would influence the research site (p-value = 0.01) and population targets (p-value = 0.00). Conclusion Although biomedical research targets some important diseases that pose a great burden to Cameroonians, the most vulnerable populations are excluded from research. Biomedical research scarcely addresses other components of the health system and emerging diseases of vital public health importance. We recommend that the government should play a central role, between researchers from academic institutions, sponsors, NGOs and research institutions, to ensure that biomedical research addresses the health priorities of Cameroonians. It should include vulnerable populations, and address other components of the health system for a balance. These recommendations are critical to ensuring that future research informed health policies reflect the health needs of the populations and promote equity in healthcare access.

Hypertension and diabetes are currently the most common, treatable, and controllable cardiovascular and metabolic risk factors for stroke, heart, and renal diseases in Cameroon. Hypertension affects 30% of adults aged ≥ 20 years with 90% as uncontrolled cases, while type 2 diabetes affects 6% of the same population, with 70% remaining underdiagnosed. Despite publication of the first Roadmap on raised blood pressure by the World Heart Federation in 2015, the Pan African Society of Cardiology Roadmap in 2017, and the technical package for cardiovascular disease management in primary health care (WHO-HEARTS) in 2020, very little progress has been made in improving the diagnosis, treatment, and control of cardiovascular risk factors and diseases in Cameroon. The Cameroon Cardiac Society and a dozen Cameroon non-communicable diseases societies, national organizations from the community and the civil society, along with researchers and members of academia and the health sector, came together under the patronage of representatives of the government to propose new strategies to improve hypertension and diabetes control and save lives in Cameroon. Two simple and practical algorithms for the management of hypertension and diabetes were developed. The ten recommendations tailored to be efficiently implemented in our country were summarized under the acronym 'A SMART VIEW' (Awareness, Screening, Manufacture, Activity, Research, Task-shifting, HIV/AIDS, Insurance, Education, and WHO-HEARTS). It is our hope that all stakeholders will further collaborate to remove barriers and enhance facilitators to deploy the proposed actions and reduce the burden of uncontrolled hypertension and untreated diabetes in Cameroon., (© 2024. The Author(s).)

During the COVID-19 pandemic, the need for making testing readily available was recognized as an important factor for individuals to help make informed decisions, including to isolate or seek care, and for policymakers to control transmission. Toward this end, FIND and the Access to COVID-19 Tools Accelerator funded 16 rapid operational research studies and one implementation project in Africa, the Caribbean, and Asia evaluating the utility, acceptability, and feasibility of different community-based SARS-CoV-2 testing approaches. Here, we discuss common factors and challenges encountered during study implementation. We note six key factors essential for success: 1) collaboration and partnerships; 2) buy-in of local stakeholders, including communities; 3) access to affordable supplies; 4) flexible financing; 5) effective approval systems; and 6) a skilled and motivated workforce. We also note various challenges that must be addressed to fully capitalize on these success factors. In particular, ethics committees are often not well equipped to assess operational research during outbreaks. Outbreaks, especially of novel pathogens, are unpredictable, and transmission dynamics are even more likely to change if the pathogen is prone to frequent mutations, such as SARS-CoV-2. Research that aims to evaluate strategies for curbing transmission must hence be easily and swiftly adaptable. This requires flexibility from researchers, funders, staff conducting the studies, and ethics and other approval committees. International guidelines for evaluating operational research protocols in outbreaks are needed to provide timely evidence to enable informed decisions by individuals, communities, and policymakers, thereby reducing both the human and the economic impact of outbreaks.

The movement of people contributes to the spread of COVID-19 between communities. Hence, we evaluated the feasibility, acceptability, and impact of offering intercity bus travelers testing prior to their departure. We conducted baseline and endline surveys to map COVID-19 prevention practices in travel agencies in western Cameroon. As interventions, buses were randomly assigned to three study arms: 1) offering systematic COVID-19 rapid diagnostic testing (RDT) to all passengers (arm A); 2) offering testing to suspected cases (arm B); or 3) no testing (arm C). All travelers were called 7-10 days after their trip to identify potential cases. Fifty-five (90.2%) of the 61 travel agencies that were reached consented to participate in a baseline survey. Although only 27 (49.1%) of the agencies implemented at least one of the recommended COVID-19 preventive measures, 39 (70.9%) agreed to host a testing station. Six agencies were selected, and 669 buses were enrolled, including 223, 224, and 222 in arms A, B, and C, respectively. A total of 31,484 departing passengers were approached and 9,594 (30.5%) agreed to participate: 1,177 (12.3%) in arm A, 4,086 (42.6%) in arm B, and 4,331 (45.1%) in arm C. In all, 1,731 tests were performed, including 1,177 in arm A and 554 in arm B. Fourteen (0.8%) tests were positive, and two participants (14.3%) agreed to postpone their travel. Offering testing with antigen RDTs in travel agencies is feasible and acceptable. One-third of passengers consented, and testing did not delay any travels. Although this approach can detect COVID-19 cases, actions are needed to increase the proportion of positive cases postponing their travels.

Background: Health personnel (HP) are on the frontlines during response to public health emergencies like COVID-19. This risk of exposure suggests the need for safety in responding to any pandemic. Therefore, to ascertain the rate of SARS-CoV-2 infection and immunity, and their determinants amongst HP become relevant., Methods: A cross sectional health facility-based study was carried-out amongst HP in the Centre Region of Cameroon from 1st February to 30th June 2021. Characteristics and access to preventive tools were collected using face-to-face administered questionnaire. Nasopharyngeal swabs and whole blood were collected for PCR, IgG and IgM testing respectively. STATA version 17 software was used for data analysis. Determinants of COVID-19 infection were explored by estimating crude and adjusted Odd Ratio., Results: Out of 510 HP reached, 458 were enrolled with mean age of 35 (±10) years. Thirty-four (7.4%) were PCR-positive to SARS-CoV-2 with 73.5% being clinicians versus 9 (26.4%) non-clinicians (p = 0.05). Sero-positivity to SARS-CoV-2 IgG/IgM was 40.2% (184/458), with 84.2% being clinicians versus 29 (15.8%) non-clinicians (p = 0.733). Amongst the 34 HP with PCR-positivity, 16 (47%) had no antibodies, while, 15 (44%) were IgG only. An estimate of HP (43.7%) had at least an evidence of PCR, IgG or IgM contact to COVID-19. Determinants of PCR-positivity was being clinical staff (AOR = 0.29, P = 0.039); and that of IgG/IgM were being non clinical staff (AOR = 0.41, p = 0.018) and regular use of face masks (AOR = 0.44, p = 0.001). HP trained on IPC (24%) were mainly from peripheral level (74.7%, p = 0.002)., Conclusion: Active infections were within the range of pandemic control (<10%). However, around two-fifths of participants have had contact with the virus, indicating that HP remains a population at risk of COVID-19 and other similarly-transmitted epidemic prone diseases, and also an important source of transmission. There is need of vaccine to achieve protectiveness, and optimal response also requires capacity building to improve the health system when challenged by a future pandemic., Competing Interests: The authors have declared that no competing interests exist., (Copyright: © 2024 Ngomtcho et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.)

Introduction: Human papillomaviruses (HPV) are responsible for sexually transmitted infections, and some of these viruses have oncogenic potential. The HPV vaccine is due to be introduced in Cameroon in September 2019. Our study looked at the knowledge, perceptions, and attitudes of the population and healthcare professionals regarding cervical cancer and its vaccine prevention. This approach provides a solid basis for, among other things, developing a clear communication strategy for the introduction of the vaccine., Objective: This study aimed to assess the feasibility and acceptability of introducing the HPV vaccine in Cameroon among key stakeholders including health workers and parents., Methods: From March to May 2019, we conducted a qualitative and quantitative descriptive study in six health districts in the Centre Region. A total of 257 study participants were recruited, including 168 parents and 89 health professionals; 60 interviews were also conducted, 30 with parents and 30 with health professionals. The quantitative data collected were analyzed using IBM SPSS Statistics for Windows, Version 20.0 (Released 2011; IBM Corp., Armonk, New York, United States); for the qualitative analysis, we carried out repeated readings of the transcribed interviews. This work enabled us to identify the significant themes emerging from the interviewees' discourse., Results: The vast majority of healthcare professionals claim to be aware of cervical cancer (93.3%), but only 15.7% of female healthcare professionals claim to have ever carried out a screening test. A significant proportion of these professionals have actual experience of cervical cancer. Among parents, knowledge of this cancer also appears to be relatively high for a lay audience (54.2%), with a low screening rate (7.1%). Awareness of the HPV vaccine as a cervical cancer prevention tool was very low: 14.9% among parents and 44.9% among healthcare professionals. In addition, we found that information about the existence of an HPV vaccine was still very low among parents (83.9% had never heard of it); 43.8% of healthcare professionals had been informed about the vaccine at their training school. As regards acceptance of the HPV vaccine, the quantitative and qualitative results point in the same direction. The majority of parents are in favor of a campaign and access to this new vaccine via the Expanded Program on Immunization (EPI). However, many of them (94.6%) explained that they wanted more information before making a decision., Conclusion: Informing and raising public awareness of cervical cancer, the HPV vaccine, and vaccine safety are essential measures to encourage public support for the HPV vaccination campaign., Competing Interests: The authors have declared that no competing interests exist., (Copyright © 2024, Guenou et al.)

Introduction The quality of protection for research participants in Africa is still marked by the lack of trained actors in this area. The study was conducted to assess the availability of health research ethics in the curricula of health-related sciences training institutions in Cameroon. Methods The study involved a cross-sectional analysis to describe the training curricula on research ethics in health training institutions in Cameroon. Data were collected using a structured questionnaire that was administered face to face to the heads of institutions in late 2020. Results Twenty-one health training institutions were identified, and 18 (85.71%) participated. Health research ethics courses were present in the curricula of 16 (88.88%) of the institutions. Lectures were either a standalone module or part of a module in 14 (77.78%) institutions. The three first topics covered in the courses were the fundamental principles of ethics, the role of the ethics committee in the protection of research participants, and respect for research participants. A total of 14 (77.78%) institutions declared ethical clearance mandatory before the implementation of students' thesis protocols. Eight (50.00%) training institutions declared having at least one qualified lecturer to deliver training in research ethics evaluation. The organization of the training of lecturers in delivering lectures on research ethics was declared to be the main assistance needed. Conclusions The delivery of research ethics education in Cameroon's healthcare institutions is still limited by the fact that it does not cover all eligible populations, is not standardized, and does not yet promote the practice of requiring all student protocols to undergo preethical review prior to implementation. These points should be taken into account by the authorities in charge., Competing Interests: The authors have declared that no competing interests exist., (Copyright © 2024, Tchio-Nighie et al.)

Background: Cameroon is a malaria-endemic country. Many control strategies including long-lasting insecticidal nets (LLIN) have been proposed to reduce the burden of malaria. The World Health Organization aims to achieve at least 80% of people sleeping under a LLIN. This study assessed the ownership and use of LLNs in the Mogode Health District (MHD)., Methods: A community-based cross-sectional study was conducted in MHD in September 2021. Data on ownership and LLINs use were collected using structured questionnaires following the Roll Back Malaria guidelines. Univariate and multivariate analyses were performed to assess the determinants of ownership and failure to LLIN use., Results:  A total of 332 households were included from eight health areas. The proportion of households with at least one LLIN was 72.0% (238). However, 232 (70.0%) reported having used LLIN (sleeping under LLIN the previous night). Household heads with higher education were six times more likely to have owned LLINs than those with no education (adjusted odds ratio (AOR)=6.8; confidence interval (CI) 1.5, 31.0, p< 0.05). Additionally, household heads between the ages of 36-50 were 4.2 times (AOR= 4.2, CI 1.3-13.8, p< 0.05) likely to fail to use LLINs in households. However, households where heads had secondary education (AOR= 0.2, CI 0.1-0.6, p< 0.05), were negatively associated with failure to use LLINs., Conclusion: Ownership and use of LLINs in MHD remain challenging. Therefore, this finding will contribute to improving recommendations and updating strategies such as targeted messages aimed at raising awareness of malaria during mass LLIN distribution campaigns., Competing Interests: The authors have declared that no competing interests exist., (Copyright © 2024, Buh Nkum et al.)

Malaria in pregnancy is a major public health concern that contributes to a significant increase in maternal and child mortality and morbidity. Intermittent preventive treatment of malaria during pregnancy using sulfadoxine-pyrimethamine (IPTp-SP) is a key intervention recommended by the World Health Organization (WHO) and implemented in Cameroon to reduce the morbidity associated with malaria during pregnancy. This study aimed to assess the distribution of the poor uptake of IPTp-SP (i.e. fewer than three doses) in Cameroon and the factors associated. We conducted a secondary analysis of data extracted from the 2018 Cameroon Demographic and Health Survey. Data was collected using a face-to-face questionnaire administered to mothers with at least one child under the age of five. The participants were selected using a two-stage stratified sampling process. We estimated the frequencies of mothers receiving fewer than three doses of IPTp-SP. Multilevel logistic regression modeling was used to assess the associations between key suspected determinants and uptake of fewer than three doses of IPTp-SP. Crude and adjusted Odds-Ratio (ORs) were estimated. A total of 13,527 women of childbearing age were interviewed, of whom 5,528 (40.9%) met our selection criteria. Among them, 845 (15.3%) women had no antenatal consultation (ANC) visit, 1,109 (20%) had 1-3 visits, 3,379 (61.1%) had 4-7 visits, and only 195 (3.5%) had at least eight visits. Moreover, 3,398 (61.5%, CI: 60.2-62.8) had received fewer than three doses of IPTp-SP. Our findings show that the predictors of poor uptake of IPTp-SP include attending the first ANC visit after the third month of pregnancy (aOR = 1.52, CI: 1.30-1.77), attending fewer than four ANC visits (aOR = 1.29, CI: 1.06-1.56), and not being attended to by a healthcare professional during the prenatal period (aOR = 4.63, CI: 2.81-7.64). Residing in the Sahelian regions was not increasing the risk of poor IPTp-SP uptake on its own but was positively modifying the effect of not being attended by a healthcare professional (p < 0.001). We did not find a significant association between a higher level of education and the uptake of IPTp-SP (aOR = 1.10, CI: 0.90-1.32). Nearly two third of the pregnant women in Cameroon have a poor uptake of IPTp-SP. Interventions focused on ANC provision ought to be explored and tested to address this gap, with priority assigned to the Sahelian region., Competing Interests: The authors have declared that no competing interests exist., (Copyright: © 2024 Guimsop et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.)

Background:  The Expanded Program on Immunization (EPI) of Cameroon contributes to the reduction of polio, but the rate of non-polio acute flaccid paralysis (NPAFP) is still high. The aim of this study was to describe the immunization profile of NPAFP cases and the performance of polio surveillance in the Far North Region of Cameroon between 2015 and 2019., Methods: A retrospective secondary data analysis was conducted using the national EPI and regional AFP surveillance case-based database from 2015 to 2019. Analyses were carried out using Epi-Info statistical software (version 7) (Centers for Disease Control and Prevention, Atlanta, GA)., Results: The surveillance network of the region reported 848 cases of NPAFP between 2015 and 2019. The sex distribution of the AFP cases revealed that 43.3% were females and 56.7% were males. Cases with AFP aged less than five years accounted for the largest proportion of cases (67.2%). Overall, 733/848 (86.4%) of the AFP cases received at least three doses of the oral polio vaccine (OPV). The AFP detection rate substantially increased in the region after the introduction of community-based surveillance in 2016. The mean NPAFP level during the study period was 7.3/100,000 children aged less than 15 years. The mean proportion of AFP cases with two adequate stools was 668/848 (78.7%), and the mean proportion of stools to the national reference laboratory within three days was 466/848 (54.9%)., Conclusion: Only 86.4% of AFP cases received three or more doses of OPV required for immunization. The stool specimen management indices were not good enough to confirm that no case of poliovirus was missed in the laboratory. To strengthen the country's polio-free status, surveillance should be strengthened in least-performing health districts to improve the quality of AFP case investigations after detection., Competing Interests: The authors have declared that no competing interests exist., (Copyright © 2024, Wakam Nkontchou et al.)

Introduction: people's access to quality water resources significantly improves their health. In Cameroon, access to drinking water is still limited and unequally distributed over the national territory with alarming figures in the northern part of the country. This study aimed to assess the distribution of water points and characterise water storage and treatment practices in households of the Lake Chad region of Cameroon., Methods: we conducted a cross-sectional descriptive study in Goulfey, Mada, and Makary health districts of the Far North Region of Cameroon from December 2013 to February 2014. Data were collected in face-to-face interviews with a structured questionnaire to assess household water behaviour and an observational grid for the characterisation of water points., Results: we identified a total of 303 water points, out of which 288 were assessed. Of these, 29.5% (85/288) were non-functional with functional failure observed as the main reason (47.6%). Of the 531 households reached, 527 (99.2%) were interviewed. Most households (70.2%) used boreholes as their main water source and only 3% of households used lakes as drinking water. The majority of households (90.4%) used clay pots for water storage within their homes. Buckets with covers are used in 21 (4.0%) while only 1 (0.2%) household used buckets without covers. Only 138 (26.2%) households treat their water and the main treatment method used is chlorination (89.1%)., Conclusion: this study provides further evidence that access to safe water remains a real problem in the Lake Chad Basin. Therefore, interventions are needed to address the problem, but further studies are needed to strengthen its implementation., Competing Interests: The authors declare no competing interests., (Copyright: Collins Buh Nkum et al.)

During surveys, it is recommended that children immunization status should be based on immunization documents. It has been noted that in some communities, a number of children are claimed to be vaccinated but have no evidence of vaccination. This work is proposed to estimate routine immunization coverage in children based on both documented vaccination and the tracking of undocumented immunization. It was a community-based survey targeting children aged 0-59 months in which the immunization status of children was assessed based on vaccination documents and based on a questionnaire tracking immunization sites and period for children with undocumented vaccination. The vaccination coverage and completeness were estimated from data collected in immunization cards and re-estimated after tracking the immunization status of children with no immunization cards. Of 1435 children reached in households, 1430 (99.7%) were included. Of 1072 children aged 12-59 months, 194 (18.1%) received DPT-Hi+Hb 3 with evidence and 399 (37.2%) with evidence and tracking. In the same age group, the dropout rate from DPT-Hi+Hb 1 (157 doses administered) to DPT-Hi+Hb 3 (127 doses administered) with evidence was 19.1% and 42.4% with evidence and tracking. The tracking of immunization status in children with no evidence of vaccination allows to determine their immunization status and to improve the reliability of the estimated vaccination coverage. This strategy could be adopted to be part of the planning and implementation of vaccination coverage surveys of EPI vaccines., (Copyright © 2023, the Author(s).)

The occurrence of epidemics is known to contribute in reducing the capacity of health facilities to deliver care and the predisposition of populations to seek care through several mechanisms. The objective was to assess the effect of the COVID-19 on vaccination coverage of the expanded program of immunization (EPI) vaccines in children aged 0-11 months. The study involved a descriptive and case control designs exhaustively targeting health facilities in health areas from selected health districts. The descriptive part explored the distribution of immunization coverage 12 months before and during COVID-19. Data were extracted from monthly EPI reports of health areas. Cases were months with immunization coverages of Bacille Calmette-Guerin (BCG), Measles Mumps-Rubella 1 (MMR1) or Diphtheria-Pertussis-Tetanus Hepatitis B + Hemophilus influenzae type b dose 3 (DPT-Hi+Hb3) less than 80%. The exposure were months belonging to the pandemic period. Of the 78 targeted health areas, 74 (94.87%) were reached. The monthly immunization coverage of BCG, RR1, DPT-Hi+Hb 1 and 3 decreased during the pandemic period by minimum 30%. Being a health-area month belonging to the COVID-19 pandemic period was found to be significantly associated to lower BCG [OR=2.00 (1.61; 2.50); P#x003C;0.001], MMR1 [OR=2.45 (1.76; 3.41); P#x003C;0.001] and DPT-Hi+Hb3 [OR=2.11 (1.68; 2.640); P#x003C;0.001] immunisation coverage. COVID-19 had a significant effect on the decrease of immunization coverages of antigens offered in the EPI program. This raises the need to develop interventions during health emergencies to prevent disruption of health services access., (Copyright © 2023, the Author(s).)

Introduction: an increasing number of persons living with HIV (PLHIV) are accessing antiretroviral therapy (ART) since the adoption of the universal test and treat (UTT) policy by Cameroon in 2016. We sought to evaluate the effectiveness of the UTT approach to keep this growing number of PLHIV on a lifelong treatment., Methods: a retrospective cohort analysis was conducted at the Nkongsamba Regional Hospital between 2002 and 2020, using routine data to compare the cumulative incidence of loss to follow-up (LTFU) and mortality between PLHIV initiated on ART under UTT guidelines and those initiated under the standard deferred approach. Chi-squared test was used to compare the risk of attrition between the guideline periods while multiple logistic regression modelling was used to adjust for confounders., Results: of 1627 PLHIV included for analysis, 756 (46.47%) were enrolled during the era of UTT with 545 (33.54%) initiated on ART on the same day of HIV diagnosis. The transition to the UTT era was associated with an overall reduction in the risk of LTFU by 73% (aOR = 0.27, 95%CI: 0.17 - 0.45). There was modest evidence that the odds of mortality had increased under the UTT policy by about 3-fold (aOR = 2.86, 95%CI: 0.91-8.94). Same-day initiation had no overall effect on LTFU or mortality. LTFU was lower among the same-day initiators in the first 24 months but increased thereafter above the rate among late initiators., Conclusion: overall ART programme implementation under the UTT has led to a significant decline in LTFU though mortality appeared to have increased. Ongoing efforts to keep patients on long-term treatment should be sustained while other innovative schemes are sought., Competing Interests: The authors declare no competing interests., (Copyright: Cavin Epie Bekolo et al.)

Community-based organizations (CBOs) are one of the initiatives implemented in Cameroon to improve access to antiretroviral treatment and influence retention in treatment centers. Despite its importance in the decongestion of patients in health facilities, we do not have data to evaluate the overall impact of these organizations. We conducted a two-part observational study. The first part was a descriptive cross-sectional study, where we included patients screened and initiated on anti-retroviral treatment (ART) either by the approved Treatment center (ATC) of Yaoundé Central Hospital (YCH) or by any of our CBOs in 2020. Then, the second part was a retrospective cohort-type study including patients from the 2015 cohort followed up from 2018 to 2020 in order to assess viral load suppression. As regards the first "90", 7,234 screening tests were performed by CBOs in 2020 out of the 28,302 screening tests registered at the YCH, giving a contribution of 25.6%. From the 7,234 screening tests performed by CBOs, 314 people had an HIV-positive result and 230 (73.34%) were linked to ART through CBOs. From the 28,302 screening tests performed at YCH, 1,089 people had an HIV-positive test, and only 354 (32.50%) were linked to ART, giving a significant difference in the link to ART (P-value < 0.00). Concerning the 3 rd ''90'', the viral load suppression rates were respectively in CBOs and at YCH of (95.12% vs 90.54%, RR= 0.51; P-value= 0.27 at 12 months); (95.96% vs 95.34%, relative risk (RR)= 0.85; P-value= 0.81 at 24 months); and (96.91% vs 94.15%, RR= 0.52; P-value = 0.24 at 36 months). In conclusion, we say that the follow-up of patients living with HIV in the community does not negatively affect the evolution of the disease as one might think., Competing Interests: The authors declare no competing interests., (Copyright: Charles Kouanfack et al.)

Missed opportunities for vaccination (MOV) reflect quality of immunization service. The objective of this study was to assess vaccination timeliness, prevalence, and characteristics of MOVs among children aged 0-23 months, as well as knowledge, attitude and practice of health workers towards immunization. An exit interview method was used to select caregivers and health personnel. Selection took place in 26 health facilities within 14 health areas in the Dshcang Health district. Data were collected using two face-to-face questionnaires adapted from the World Health Organization (WHO) tools. We conducted an evaluation of all free vaccines in the Expanded Programme on Immunisation (EPI). We studied timeliness, assessed MOV, and knowledge, behaviour and attitude of health workers on immunization. Basic statistical tests were used to study the association between MOV and socio demographic characteristics. A total of 363 children aged 0 to 23 months were surveyed. A total of 88 (91.66%) of health personnel agreed to participate in our study. A total of 298 (82.1%) children had vaccination cards with dates, leading to 18% not completely vaccinated. Vaccination timeliness ranged from 20% to 77%. Overall MOV estimated was 23.83%, range from 0% to 16.4% among all vaccines. Among health workers, 70.45% (62/88) had insufficient knowledge on vaccination, 73.86% assessed the vaccination status of children during any routine visit and 74% ask parents to bring the child's vaccination record to any health facility visit. The study highlighted presence of MOV among children. Strategies for remedying this includes strengthening parents' knowledge, organizing refresher courses for health workers on vaccination, and systematically assessing children's vaccination status., Competing Interests: The authors have declared that no competing interests exist., (Copyright: © 2023 Dombou Zeufack et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.)

Background: Diarrhoeal disease is a leading cause of childhood illness and death globally, and Shigella is a major aetiological contributor for which a vaccine might soon be available. The primary objective of this study was to model the spatiotemporal variation in paediatric Shigella infection and map its predicted prevalence across low-income and middle-income countries (LMICs)., Methods: Individual participant data for Shigella positivity in stool samples were sourced from multiple LMIC-based studies of children aged 59 months or younger. Covariates included household-level and participant-level factors ascertained by study investigators and environmental and hydrometeorological variables extracted from various data products at georeferenced child locations. Multivariate models were fitted and prevalence predictions obtained by syndrome and age stratum., Findings: 20 studies from 23 countries (including locations in Central America and South America, sub-Saharan Africa, and south and southeast Asia) contributed 66 563 sample results. Age, symptom status, and study design contributed most to model performance followed by temperature, wind speed, relative humidity, and soil moisture. Probability of Shigella infection exceeded 20% when both precipitation and soil moisture were above average and had a 43% peak in uncomplicated diarrhoea cases at 33°C temperatures, above which it decreased. Compared with unimproved sanitation, improved sanitation decreased the odds of Shigella infection by 19% (odds ratio [OR]=0·81 [95% CI 0·76-0·86]) and open defecation decreased them by 18% (OR=0·82 [0·76-0·88])., Interpretation: The distribution of Shigella is more sensitive to climatological factors, such as temperature, than previously recognised. Conditions in much of sub-Saharan Africa are particularly propitious for Shigella transmission, although hotspots also occur in South America and Central America, the Ganges-Brahmaputra Delta, and the island of New Guinea. These findings can inform prioritisation of populations for future vaccine trials and campaigns., Funding: NASA, National Institutes of Health-The National Institute of Allergy and Infectious Diseases, and Bill & Melinda Gates Foundation., Competing Interests: Declaration of interests JG and MM report grants from PanTheryx, during the conduct of the study; NP reports grants from GlaxoSmithKline, during the conduct of the study; the remaining authors declare no competing interests., (Copyright © 2023 The Author(s). Published by Elsevier Ltd. This is an Open Access article under the CC BY 4.0 license. Published by Elsevier Ltd.. All rights reserved.)

Reducing mortality among COVID-19 cases is a major challenge for most health systems worldwide. Estimating the risk of preexisting comorbidities on COVID-19 mortality may promote the importance of targeting at-risk populations to improve survival through primary and secondary prevention. This study was conducted to explore the contribution of exposure to some chronic diseases on the mortality of COVID-19. This was a case control study. The data were collected from the records of all patients hospitalised at Bafoussam Regional Hospital (BRH) from March 2020 to December 2021. A grid was used to extract data on patient history, case management and outcome of hospitalised patients. We estimated the frequency of each common chronic disease and assessed the association between suffering from all and each chronic disease (Diabetes or/and Hypertension, immunodeficiency condition, obesity, tuberculosis, chronic kidney disease) and fatal outcome of hospitalised patients by estimating crude and adjusted odd ratios and their corresponding 95% confidence intervals (CI) using time to symptom onset and hospital admission up to three days, age range 65 years and above, health professional worker and married status as confounder's factors. Of 645 included patients, 120(20.23%) deaths were recorded. Among these 645 patients, 262(40.62%) were males, 128(19.84%) aged 65 years and above. The mean length of stay was 11.07. On admission, 204 (31.62%) patients presented at least one chronic disease. The most common chronic disease were hypertension (HBP) 73(11.32%), followed by diabetes + HBP 62 (9.61%), by diabetes 55(8.53%) and Immunodeficiency condition 14(2.17%). Diabetes and Diabetes + HBP were associated with a higher risk of death respectively aOR = 2.71[95%CI = 1.19-6.18] and aOR = 2.07[95% CI = 1.01-4.23] but HBP did not significantly increased the risk of death. These results suggest that health authorities should prioritize these specific group to adopt primary and secondary preventive interventions against SARS-CoV-2 infection., Competing Interests: The authors have declared that no competing interests exist., (Copyright: © 2023 Nzinnou Mbiaketcha et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.)

The recommended schedule for killed oral cholera vaccine (OCV) is two doses, 2 weeks apart. However, during vaccine campaigns, the second round is often delayed by several months. Because more information is needed to document antibody responses when the second dose is delayed, we conducted an open-label, phase 2, noninferiority clinical trial of OCV. One hundred eighty-six participants were randomized into three dose-interval groups (DIGs) to receive the second dose 2 weeks, 6 months, or 11.5 months after the first dose. The DIGs were stratified into three age strata: 1 to 4, 5 to 14, and > 14 years. Inaba and Ogawa vibriocidal titers were assessed before and after vaccination. The primary analysis was geometric mean titer (GMT) 2 weeks after the second dose. Data for primary analysis was available from 147 participants (54, 44, and 49 participants from the three DIGs respectively). Relative to the 2-week interval, groups receiving a delayed second dose had significantly higher GMTs after the second dose. Two weeks after the second dose, Inaba GMTs were 55.1 190.3, and 289.8 and Ogawa GMTs were 70.4, 134.5, and 302.4 for the three DIGs respectively. The elevated titers were brief, returning to lower levels within 3 months. We conclude that when the second dose of killed oral cholera vaccine was given after 6 or 11.5 months, vibriocidal titers were higher than when given after the standard period of 2 weeks. This provides reassurance that a delayed second dose does not compromise, but rather enhances, the serological response to the vaccine.

Background: In 2020, the world was confronted with COVID-19, which caused a socio-economic panic in several sectors. The use of hospitals has been affected, with an impact on their financial performance. The objective of this study was to assess the effect of the pandemic on the financial performance of a hospital with a care center., Methodology: This was a cross-sectional study targeting the Yaoundé Central Hospital over two periods : before the pandemic (March to August 2019) and during the pandemic (March to August 2020). Based on the administrative accounts, revenues from the main sources of financial inflows were recorded and compared before and during the pandemic., Results: From March to August 2019, overall revenue was 1,131,525,099 FCFA and from March to August 2020, it was 762,770,714 FCFA, representing a drop of 32.6%. Medical imaging showed a drop of 14% corresponding to a loss of 96,500,052 FCFA. The laboratory showed a 21% decrease corresponding to a loss of 80,691,347 FCFA. Hospital admissions fell by 21%, corresponding to a loss of 62,124,675 FCFA. Consultations fell by 10%, corresponding to a loss of 49,265,835 FCFA., Conclusion: The COVID-19 pandemic had a negative effect on the financial revenues of the Yaoundé Central Hospital., (©Copyright: the Author(s).)

To attain the HIV 95-95-95 goals by 2030 in Cameroon, high quality research to inform policy and patient care is of utmost importance. In the context of limited workforce and resources, collaborations, sharing of locally-adapted strategies and other field experience, leveraging on existing and innovative platforms would facilitate a coordinated and optimal AIDS response at country level. The second edition of the Cameroon HIV Research Forum (CAM-HERO) conference took place both physically and virtually on November 18 and 19, 2021 in Kribi, on the theme "Research for Policy and Care". This scientific event brought together Cameroonian HIV/AIDS researchers, experienced clinicians and regulatory authorities to foster i) the dissemination of research findings and facilitate translation into policy, ii) operational research collaboration, iii) identification of new research areas, and iv) capacity building. To achieve the set objectives during this event, a consensus on research priorities for accelerating the achievement of three 95 HIV goals in Cameroon were summarized; meeting sessions included 31 abstract presentations, 13 discussions, and presentations on various aspects of HIV research including ethics, administrative procedures and needs for capacity building; training of young scientists on guidelines for research proposal development toward ethical clearance was done; and a platform for discussion between researchers and regulatory authorities was conducted around the design and setting-up of a national HIV/AIDS research agenda. CAM-HERO 2021 brought together HIV researchers, experts and junior scientists around major programmatic challenges, evidence to translate into practice, research priorities on HIV/AIDS. Collaborations were reinforced, capacities were strengthened, and footprints were established towards a consensus on a national HIV/AIDS research agenda., Competing Interests: The authors declare no competing interests., (Copyright: Patrice Tchendjou et al.)

Background: Data are needed to serve as evidence in planning the strengthening of pharmacovigilance in health programs administering drugs to populations. The present study was proposed to map the distribution of pharmacovigilance units in health programs, assess the availability of key resources, the implementation of key pharmacovigilance activities and identify needs of involved actors., Methods: It was a cross sectional descriptive study targeting all health programs of the Cameroon Ministry of Public Health administering drugs/vaccines to the population. Data were collected using semi structured questionnaire administered face to face to key persons in charge of drug safety monitoring or drug management in health programs., Results: Out of the 09 health programs involved in drug distribution, 07 consented to participate. Five out of them (71.4%) claimed to have existing pharmacovigilance units. Office space, computers, operating budget, data analysis software and a trained staff were available in 28.6%, 42.9%, 42.9%, 14.3%, 00.0%, and 42.9% of the health programs respectively. One of the 7 health programs (14.3%) declared conducting detection/notification of adverse events following exposure drugs, 2 (28.6%) conduct causality assessment and 3 (42.8%) conduct analysis of pharmacovigilance data. All health programs proposed to prioritize the allocation of budget and qualified personnel and the training of existing personnel as key interventions to improve drugs/vaccines safety monitoring in health programs., Conclusion: The study reports limited coverage of Cameroon health programs with activities leading to drugs and vaccine safety monitoring. Suggested actions have to be taken into account when attempting to improve the situation., Competing Interests: Competing Interest None declared. Conflict of Interest The authors declare no conflict of interest.

Background: Researchers are responsible for the protection of health research participants. The purpose of this study was to identify and prioritize the training needs of researchers involved in human health research in Cameroon., Methods: It was a cross-sectional study conducted in all the Cameroon regions in the last quarter of 2020. It targeted researchers involved in human health research selected by systematic stratified sampling from health and training institutions, and health facilities. Data were collected using a face-to-face administered questionnaire deployed in Smartphones via the ODK-collect. The distribution of participants' exposure to research ethics training was described as well as their knowledge on the related regulatory texts. A score was used to rank the training needs identified by the participants., Results: Of 168 reached participants, 134 (79.76%) participated in the study. A total of 103 (76.87%) researchers reported having received training in human health research ethics and 98 (73.13%) perceived need of training in research ethics. Of those involved in clinical, vaccine, and field trials, 63.64, 33.33, 52.53% have been exposed respectively to related training regarding participants' protection. Having received at least one training in research ethics significantly increase the proportion of researchers systematically submitting application for ethical evaluation prior to implementation (OR = 3.20 (1.31-7.78)). Training priorities identified by researchers include: guidelines and regulations on health research ethics and research participant's protection in Cameroon, procedures for evaluating research protocols, protection of research participants in clinical trials, and fundamental ethics principles., Conclusion: The coverage of researchers in training regarding research participant protection remains limited in a number of areas including those related to clinical trial participant protection and research participant protection in Cameroon. Improving this coverage and addressing perceived needs of researchers are expected to contribute in improving their ability in playing their role in research participant protection., (© 2022. The Author(s).)

Background: Countries' Expanded Program on Immunization (EPI) contribute to the reduction of mortality and morbidity, but access to these vaccines remains limited in most low-income countries., Objective: We aim to assess whether involving community volunteers (CVs) to track children's vaccination status and demographic movements and using recorded data to plan catch-up immunization sessions can improve children's vaccination timeliness, completeness, and coverage., Methods: This was a field-based randomized controlled trial and communities of the Foumban health district in West Cameroon were allocated to intervention or control groups. In the intervention group, a CV per community was trained to visit households monthly for a year to assess and record in a register, details of EPI-targeted children, their demographic movements and immunization status. The scanned recorded pages were sent to the health center immunization team through WhatsApp and used to organize monthly community catch-up immunization sessions. In the control group, EPI vaccination sessions were routinely conducted. Surveys were conducted at 6 and 12 months from the beginning of the intervention in both study groups to assess and compare immunization timeliness, coverage, and completeness., Results: Overall, 30 buildings per cluster were surveyed at midline and endline. Of the 633 and 729 visited households in the intervention group at midline and endline, 630 (99.5%) and 718 (98.4%), respectively, consented to participate. In the control group, 507 and 651 households were visited and 505 (99.6%) and 636 (97.7%), respectively, consented to participate. At 12 months intervention, the month one timeliness of bacille Calmette-Guerin (BCG) vaccine did not increase in the intervention group compared with the control group for the age groups 0-11 months (adjusted odds ratio [aOR] 1.1, 95% CI 0.7-1.8) and 0-59 months (aOR 1.1, 95% CI 0.9-1.4), and significantly increased for the first-year BCG vaccine administration for the age group 0-23 months (aOR 1.5, 95% CI 1.1-2.2). The coverage of diphtheria-pertussis-tetanus and hepatitis B+Hemophilus influenzae type B (DPT-Hi +Hb) dose 3 (aOR 2.0, 95% CI 1.5-2.7) and of DPT-Hi+Hb dose 1 (aOR 1.8, 95% CI 1.4-2.4) vaccines increased significantly in the intervention group compared with the control group in the age groups 12-59 months and 12-23 months, respectively. Specific (DPT-Hi+Hb dose 1 to DPT-Hi+Hb dose 3: aOR 1.9, 95% CI 1.4-2.6) and general (BCG to measles: aOR 1.5, 95% CI 1.1-2.1) vaccine completeness increased significantly in the intervention group compared with the control group., Conclusions: Findings support that involving CVs to track children's vaccination status and demographic movements and using recorded data to plan catch-up immunization sessions improve children's vaccination timeliness, completeness, and coverage. This strategy should be adopted to improve access to vaccination for EPI target populations and the consistency verified in other contexts., Trial Registration: Pan African Clinical Trials Registry PACTR201808527428720; https://pactr.samrc.ac.za/TrialDisplay.aspx?TrialID=3548., (©Jérôme Ateudjieu, Ketina Hirma Tchio-Nighie, André Pascal Goura, Martin Yakum Ndinakie, Miltiade Dieffi Tchifou, Lapia Amada, Marcelin Tsafack, Frank Forex Kiadjieu Dieumo, Etienne Guenou, Charlette Nangue, Bruno Kenfack. Originally published in JMIR Public Health and Surveillance (https://publichealth.jmir.org), 01.03.2022.)

Introduction: despite its relatively low case-fatality rate, COVID-19 is a concern with high mortality and morbidity of hospitalized cases. This study was conducted to assess the relationship between time to consultation, presence of respiratory complications at hospital admission and fatal outcome of COVID-19 cases., Methods: this was a case control study with data collected from records of all patients admitted in the Bafoussam Regional Hospital (BRH) from March 2020 to April 2021. Cases were patients with a fatal outcome and controls were patients that were discharged. The association between the delay in seeking care, dyspnea and blood oxygen level at admission, and fatal outcome was assessed by estimating crude and adjusted odd ratio., Results: of 400 included patients, 239 (59.75%) were male, 84 (23.73%) health professionals and 144 (36.0%) aged 64 years and above. On admission, 236 patients presented at least one sign of respiratory complication. The mean duration of hospitalization was 11.4 days and 120 (30.0%) admitted patients died. Seeking care before the end of the first day of symptom onset (adjusted (A) OR=0.44 [0.21-0.97]) or within the first three days (AOR=0.48 [0.26-0.89]) significantly reduced the risk of fatal outcome, whereas waiting seven days (AOR=0.74 [0.42-1.33]) did not change this risk. Presenting dyspnea (AOR=2.39 [1.32-4.31]) or blood oxygen level <95% (AOR=3.67 [1.37-9.83]) significantly increased the risk of fatal outcome., Conclusion: mortality was one in three patients. Early arrival at the hospital helped to reduce the risk of mortality unlike presenting respiratory complication that increased the risk. Health interventions contributing for early detection and link of COVID-19 cases to care before respiratory complications occur are expected to reduce mortality in COVID-19 patients., Competing Interests: The authors declare no competing interest., (Copyright: Ketina Hirma Tchio-Nighie et al.)

Background: Monitoring and Evaluation (M&E) is essential in ensuring population's access to immunization. Surveys are part of this M&E approach but its timing limits the use of its results to improve the coverage of the evaluated campaign. An oral cholera vaccination campaign was organized in a health district of the Far North region of Cameroon and involved an innovative M&E approach. The aim of this project was to assess the feasibility and effect of using recommendations of a community-based immunization and communication coverage survey conducted after the first round of an OCV campaign on the coverage of the second-round of the campaign., Methods: Two community-based surveys were included in the M&E plan and conducted at the end of each of the campaign rounds. Data were collected by trained and closely supervised surveyors and reported using smartphones. Key results of the first-round survey were disseminated to campaign implementing team prior to the second round. The two rounds of the pre-emptive campaign were organized by the Cameroon Ministry of Public Health and partners with a two-week interval in the Mogode Health District of the Far North region of Cameroon in May and June 2017., Results: Of 120 targeted clusters, 119 (99.1%) and 117 (97.5%) were reached for the first and second rounds respectively. Among the Mogode population eligible for vaccination, the immunization coverage based on evidence (card or finger mark) were estimated at 81.0% in the first round and increased to 88.8% in the second round (X 2 =69.0 and p <0.00). For the second round, we estimated 80.1% and 4.3% of persons who were administered 2 doses and 1 dose of OCV with evidence respectively, and 3.8% of persons who have not been vaccinated. The distribution of campaign communication coverage per health area was shared with the campaign coordination team for better planning of the second round campaign activities., Conclusions: It is feasible to plan and implement coverage survey after first round OCV campaign and use its results for the better planning of the second round. For the present study, this is associated to the improvement of OCV coverage in the second-round vaccination. If this is persistent in other contexts, it may apply to improve coverage of any health campaign that is organized in more than one round., (© 2022. The Author(s).)

In Bangladesh and West Bengal cholera is seasonal, transmission occurs consistently annually. By contrast, in most African countries, cholera has inconsistent seasonal patterns and long periods without obvious transmission. Transmission patterns in Africa occur during intermittent outbreaks followed by elimination of that genetic lineage. Later another outbreak may occur because of reintroduction of new or evolved lineages from adjacent areas, often by human travelers. These then subsequently undergo subsequent elimination. The frequent elimination and reintroduction has several implications when planning for cholera's elimination including: a) reconsidering concepts of definition of elimination, b) stress on rapid detection and response to outbreaks, c) more effective use of oral cholera vaccine and WASH, d) need to readjust estimates of disease burden for Africa, e) re-examination of water as a reservoir for maintaining endemicity in Africa. This paper reviews major features of cholera's epidemiology in African countries which appear different from the Ganges Delta., (© The Author(s) 2021. Published by Oxford University Press for the Infectious Diseases Society of America.)

Diarrhea is a leading cause of death in children under five. Molecular methods exist for the rapid detection of enteric pathogens; however, the logistical costs of storing stool specimens limit applicability. We sought to demonstrate that dried specimens preserved using filter paper can be used to identify diarrheal diseases causing significant morbidity among children in resource-constrained countries. A substudy was nested into cholera surveillance in Cameroon. Enrollment criteria included enrollment between 1 August 2016 and 1 October 2018, age of <18 years, availability of a stool specimen, and having three or more loose stools within 24 h with the presence of dehydration and/or blood. A total of 7,227 persons were enrolled, of whom 2,746 met enrollment criteria and 337 were included in this analysis using the enteric TaqMan array card. Bacterial pathogens were compared to severity of diarrhea, age, and sex, among other variables. One hundred seven were positive for enterotoxigenic Escherichia coli, of which 40.2% ( n  = 43) had heat-labile enterotoxin (LT) and the heat-stable enterotoxin STh, 19.6% ( n  = 21) had LT and the heat-stable enterotoxin STp, and 49.5% ( n = 53) had LT only. Major colonization factors (CFs) were present in 43.9% of enterotoxigenic E. coli (ETEC)-positive patients. Ninety-six were positive for Shigella , of whom 14 (14.6%) reported dysentery. Model-derived quantitative cutoffs identified 116 (34.4%) with one highly diarrhea-associated pathogen and 16 (4.7%) with two or more. Shigella and rotavirus were most strongly associated with diarrhea in children with mixed infections. Dried-filter-paper-preserved specimens eliminate the need for frozen stool specimens and will facilitate enteric surveillance and contribute to the understanding of disease burden, which is needed to guide vaccine development and introduction. This study confirms rotavirus, Shigella , and ETEC as major contributors to pediatric diarrheal disease in two regions of Cameroon.

Research is a vital component for the development of any country. In Cameroon, HIV Operational research is rapidly growing, however, it faces some intractable problems which can only be solved through an urgent, strategic, efficient, and collaborative approach involving key stakeholders. The Kribi meeting (09 and 10 th December 2020) brought together under the auspices of the Ministry of Public Health leading HIV research organisations and connected HIV researchers and actors from different sectors. These actors disseminated and discussed recent research findings and worked out mechanisms to advance HIV research development, developed new ideas and identified priority research areas, with emphasis on translational research. The official launching and consolidation of Cam-HERO was a critical step and it is hoped that these synergistic efforts will catalyse attainment of the 95-95-95 goals in Cameroon., Competing Interests: The authors declare no competing interests., (Copyright: Boris Tchounga et al.)

Introduction: the Treat-All remains the globally endorsed approach to attain the 95-95-95 targets and end the AIDS pandemic by 2030, but requires some country-level contextualization. In Cameroon, the specific research agenda to inform strategies for improving HIV policy was yet to be defined., Methods: under the patronage of the Cameroon Ministry of health, researchers, policy makers, implementing partners, and clinicians from 13 institutions, used the Delphi method to arrive at a consensus of HIV research priorities. The process had five steps: 1) independent literature scan by 5 working groups; 2) review of the initial priority list; 3) appraisal of priorities list in a larger group; 4) refinement and consolidation by a consensus group; 5) rating of top research priorities., Results: five research priorities and corresponding research approaches, resulted from the process. These include: 1) effectiveness, safety and active toxicity monitoring of new and old antiretrovirals; 2) outcomes of Antiretroviral Therapy (ART) with focus in children and adolescents; 3) impact of HIV and ART on aging and major chronic diseases; 4) ART dispensation models and impact on adherence and retention; 5) evaluations of HIV treatment and prevention programs., Conclusion: the research priorities resulted from a consensus amongst a multidisciplinary team and were based on current data about the pandemic and science to prevent, treat, and ultimately cure HIV. These priorities highlighted critical areas of investigation with potential relevance for the country, funders, and regulatory bodies., Competing Interests: The authors declare no competing interests., (Copyright: Anastase Dzudie et al.)

Introduction: typhoid fever is a systemic infectious disease caused by the bacteria Salmonella enterica subspecies (typhi). It is a major cause of morbidity and mortality worldwide. This cross-sectional descriptive study aimed at determining the prevalence and awareness of the mode of transmission of Salmonella typhi among patients at the Saint Elisabeth General Hospital Shisong of Cameroon., Methods: the study carried out from March 1 st , 2017 to May 31 st , 2017 recruited patients who presented at the hospital with clinical signs and symptoms of typhoid fever and who had lab requests for stool culture requested by the resident physician. The prevalence of Salmonella typhi infections among the patients and the proportion of patients with adequate knowledge on the mode of transmission of Salmonella typhi were estimated at a 95% CI. Data were analyzed using Epi info7.1.3.3., Results: out of the 172 patients recruited for the studies, 52 (30.1%) were diagnosed with Salmonella typhi, 59.6% of which were male. Also, 3 (5.8%) were diagnosed with Salmonella paratyphoid A. A positive correlation between knowledge on the mode of transmission of Salmonella typhi and the level of education was established, showing that 92% of participants with a higher level of education indicating that typhoid fever can be contracted through consumption of contaminated water., Conclusion: high prevalence of typhoid fever was observed in our study. The unawareness of the patients on typhoid fever and its contraction through contaminated water and food was positively correlated to the level of educations of the patients. These findings, therefore, suggest a public health challenge faced by inhabitants in this region where typhoid fever remains endemic. Scarcity of potable water, improper drainage systems, and problems of unsanitary toilets in Cameroon require urgent intervention., Competing Interests: The authors declare no competing interests., (Copyright: Heasla Fibuonu Njoya et al.)

Background: In Cameroon, the coverage, completeness, and timeliness of the Expanded Programme on Immunization (EPI) vaccines administration in children have remained heterogeneous and below the national and districts targets in several districts. In an effort to solve this problem, many interventions have been tested but none has shown significant improvement of the situation., Objective: This trial aims to test whether involving Community Volunteers to assess children vaccination status and demographic movements and using recorded data to plan catch-up immunization sessions can improve children vaccination timeliness, completeness and coverage., Methods: Communities of the Foumban Health district, West region of Cameroon will be selected and assigned to either intervention or control groups using a restricted randomization of 2. In the intervention group, one Community Volunteer per community will be trained to visit households and record EPI-targeted children in a register, record their demographic movements, and assess their immunization status monthly for a year. The information recorded will be snapped and sent to the competent health center immunization team through WhatsApp. These will be used to plan and implement monthly community catch up immunization sessions in collaboration with the community volunteer. In the control group, the routine immunization sessions will be conducted with health centers organizing either weekly vaccination sessions for communities situated not farther than 5 kilometers away from the health facility or monthly vaccination sessions in communities situated more than 5 kilometers away from the health center. Baseline, mid-term and end-line surveys will be conducted to assess and compare immunization coverage, timeliness, and completeness., Results: Funded in 2018, data collection started in 2018 and has been completed. Data analysis and reporting are ongoing., Conclusions: This trial is expecting to test an innovative approach to improving children's immunization timeliness, completeness and coverage of immunization by tracking EPI targeted population vaccination status and denominator at household level and building collaboration between the community and health facilities vaccination teams to organize monthly community-based response vaccination sessions. This intervention is expected to improve children sustainable access to EPI vaccination as it offers assessing and responding to their immunization needs at monthly basis using low cost local human resources., Trial Registration: Pan African Clinical Trials Registry ID PACTR201808527428720; tinyurl.com/u058qnse., International Registered Report Identifier (irrid): DERR1-10.2196/21734., (©Jérôme Ateudjieu, Ndinakie Martin Yakum, André Pascal Goura, Etienne Guenou, Landry Bita’a Beyala, Lapia Amada, Isabelle Ngoche, Frank Forex Kiadjieu, Charlette Nangue, Elvis Briand Soukep Djosseu, Bruno Kenfack. Originally published in JMIR Research Protocols (http://www.researchprotocols.org), 08.02.2021.)