17 results on '"Nyongesa C"'
Search Results
2. Comparative study of breast cancer risk factors at Kenyatta National Hospital and the Nairobi Hospital
- Author
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Othieno-Abinya, N. A., Wanzala, P., Omollo, R., Kalebi, A., Baraza, R., Nyongesa, C. N., Muthoni-Musibi, A., Maina, M. D., Waweru, A., and Githaiga, J.
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- 2015
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3. Factors influencing choice of skilled birth attendance at ANC: Evidence from the Kenya demographic health survey
- Author
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Nyongesa, C, Xu, X, Hall, JJ, Macharia, WM, Yego, F, Hall, B, Nyongesa, C, Xu, X, Hall, JJ, Macharia, WM, Yego, F, and Hall, B
- Abstract
© 2018 The Author(s). Background: In Kenya, skilled attendance at delivery is well below the international target of 90% and the maternal mortality ratio is high at 362 (CI 254-471) per 100,000 live births despite various interventions. The preventative role of skilled attendance at delivery makes it a benchmark indicator for safe motherhood. Methods: Maternal health data from the Service Provision Assessment Survey, a subset of the 2010 Kenya Demographic Health Survey was analyzed. Logistic regression models were employed using likelihood ratio test to explore association between choice of skilled attendance and predictor variables. Results: Overall, 94.8% of women are likely to seek skilled attendance at delivery. Cost, education level, number of antenatal visits and sex of provider were strongly associated with client's intention to deliver with a skilled birth attendant at delivery. Women who reported having enough money set aside for delivery were 4.34 (p < 0.002, 95% CI: 1.73; 10.87) times more likely to seek skilled attendance. Those with primary education and above were 6.6 times more likely to seek skilled attendance than those with no formal education (p < 0.001, 95% CI: 3.66; 11.95). Women with four or more antenatal visits were 5.95 (p < 0.018, 95% CI: 1.35; 26.18) times more likely to seek skilled attendance. Compared to men, female providers impacted more on the client's plan (OR = 2.02 (p < 0.014, 95% CI: 1.35; 3.53). Conclusion: Interventions aimed at improving skilled attendance at delivery should include promotion of formal education of women and financial preparation for delivery. Whenever circumstances permit, women should be allowed to choose gender of preferred professional attendant at delivery.
- Published
- 2018
4. Malnutrition and cachexia among cancer out-patients in Nairobi, Kenya
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Kaduka, L. U., primary, Bukania, Z. N., additional, Opanga, Y., additional, Mutisya, R., additional, Korir, A., additional, Thuita, V., additional, Nyongesa, C., additional, Mwangi, M., additional, Mbakaya, C. F. L., additional, and Muniu, E., additional
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- 2017
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5. OC-0572: Patterns of practice in palliative radiotherapy in Africa ñ case revisited
- Author
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Jeremic, B., primary, Vanderpuye, V., additional, Abdel-Wahab, S., additional, Gaye, P.M., additional, Kochbati, L., additional, Dawotola, D., additional, Wondemagegnehu, T., additional, Diwani, M., additional, Nyongesa, C., additional, and Shouman, T., additional
- Published
- 2014
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6. A phase I study of concurrent cisplatin chemotherapy in patients with carcinoma of the cervix receiving pelvic radiotherapy
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NYONGESA, C., primary, RUFF, P., additional, DONDE, B., additional, and KOTZEN, J., additional
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- 2006
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7. Potential of E-Learning Interventions and Artificial Intelligence-Assisted Contouring Skills in Radiotherapy: The ELAISA Study.
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Rasmussen ME, Akbarov K, Titovich E, Nijkamp JA, Van Elmpt W, Primdahl H, Lassen P, Cacicedo J, Cordero-Mendez L, Uddin AFMK, Mohamed A, Prajogi B, Brohet KE, Nyongesa C, Lomidze D, Prasiko G, Ferraris G, Mahmood H, Stojkovski I, Isayev I, Mohamad I, Shirley L, Kochbati L, Eftodiev L, Piatkevich M, Bonilla Jara MM, Spahiu O, Aralbayev R, Zakirova R, Subramaniam S, Kibudde S, Tsegmed U, Korreman SS, and Eriksen JG
- Subjects
- Humans, Organs at Risk radiation effects, Head and Neck Neoplasms radiotherapy, Female, Male, Radiotherapy Planning, Computer-Assisted methods, Radiation Oncologists education, Adult, Middle Aged, Artificial Intelligence
- Abstract
Purpose: Most research on artificial intelligence-based auto-contouring as template (AI-assisted contouring) for organs-at-risk (OARs) stem from high-income countries. The effect and safety are, however, likely to depend on local factors. This study aimed to investigate the effects of AI-assisted contouring and teaching on contouring time and contour quality among radiation oncologists (ROs) working in low- and middle-income countries (LMICs)., Materials and Methods: Ninety-seven ROs were randomly assigned to either manual or AI-assisted contouring of eight OARs for two head-and-neck cancer cases with an in-between teaching session on contouring guidelines. Thereby, the effect of teaching (yes/no) and AI-assisted contouring (yes/no) was quantified. Second, ROs completed short-term and long-term follow-up cases all using AI assistance. Contour quality was quantified with Dice Similarity Coefficient (DSC) between ROs' contours and expert consensus contours. Groups were compared using absolute differences in medians with 95% CIs., Results: AI-assisted contouring without previous teaching increased absolute DSC for optic nerve (by 0.05 [0.01; 0.10]), oral cavity (0.10 [0.06; 0.13]), parotid (0.07 [0.05; 0.12]), spinal cord (0.04 [0.01; 0.06]), and mandible (0.02 [0.01; 0.03]). Contouring time decreased for brain stem (-1.41 [-2.44; -0.25]), mandible (-6.60 [-8.09; -3.35]), optic nerve (-0.19 [-0.47; -0.02]), parotid (-1.80 [-2.66; -0.32]), and thyroid (-1.03 [-2.18; -0.05]). Without AI-assisted contouring, teaching increased DSC for oral cavity (0.05 [0.01; 0.09]) and thyroid (0.04 [0.02; 0.07]), and contouring time increased for mandible (2.36 [-0.51; 5.14]), oral cavity (1.42 [-0.08; 4.14]), and thyroid (1.60 [-0.04; 2.22])., Conclusion: The study suggested that AI-assisted contouring is safe and beneficial to ROs working in LMICs. Prospective clinical trials on AI-assisted contouring should, however, be conducted upon clinical implementation to confirm the effects.
- Published
- 2024
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8. Understanding and comparing the medical tourism cancer patient with the locally managed patient: A case control study.
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Wangai MW, Wangai FK, Njiri F, Wangai EN, Wangai P, Nyongesa C, and Kinuthia J
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- Case-Control Studies, Delivery of Health Care, Friends, Humans, Income, Medical Tourism, Neoplasms therapy
- Abstract
Introduction: Medical tourism is characterized by people seeking treatment abroad for various medical conditions due to varied reasons, many of whom benefit from specialized care for non-communicable diseases. Conversely, there are associated negative effects such as medical complications and weakened health systems. Currently, there is paucity of scientific evidence on patient-related factors influencing seeking treatment benefits abroad. This study sought to compare patient-related factors associated with choice of cancer treatment center locally or abroad, to understand reasons for seeking treatment outside Kenya., Materials and Methods: As a case-control study, 254 cancer patients were randomly sampled to compare responses from those who chose to receive initial treatment abroad or in Kenya. The cases were recruited from Ministry of Health while the controls from Kenyatta National Hospital and Texas Cancer Center. Data was analyzed using SPSS Software Version 21. Descriptive statistics, bivariate and multiple logistic regression analysis was carried out. Level of significance was set at 5%., Results: Out of 254 respondents, 174 (69.5%) were treated for cancer in Kenya and 80 (31.5%) in India. We found that cost effectiveness was a significant factor for over 73% of all respondents. The study revealed independent predictors for seeking treatment in India were: monthly income higher than US$ 250; every additional month from when disclosure to patients was done increased likelihood by 1.16 times; physician advice (Odds Ratio(OR) 66; 95% Confidence Interval(CI) 7.9-552.9); friends and family (OR 42; 95% CI 7.07-248.6); and perception of better quality of care (OR 22.5; 95% CI 2.2-230.6)., Conclusion: Reasons patients with cancer sought treatment in India are multifactorial. Several of these can be addressed to reverse out-ward bound medical tourism and contribute to improving the in-country cancer healthcare. It will require strengthening the health system accordingly and sensitizing the medical fraternity and general public on the same., Competing Interests: The authors have declared that no competing interests exist.
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- 2022
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9. The Burden of Hepatitis B, Hepatitis C, and Human Immunodeficiency Viruses in Ovarian Cancer Patients in Nairobi, Kenya.
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Wanyama FM, Tauber R, Mokomba A, Nyongesa C, and Blanchard V
- Abstract
Ovarian cancer (OC) is a gynecological malignancy characterized by high morbidity and mortalities due to late-stage diagnosis because accurate early diagnostic biomarkers are lacking. Testing of Hepatitis B virus (HBV), Hepatitis C virus (HCV), and Human immunodeficiency virus (HIV) infections in OC patients is pertinent in light of the emerging evidence of their contribution to poor prognosis. We, for the first time, investigated the prevalence of HBV, HCV, and HIV infections in a Kenyan cohort of OC to inform optimal management. We recruited a cohort of women above 18 years of age, comprising 86 OC patients and 50 healthy controls. Participants' blood samples were serologically screened for HBV, HCV, and HIV. We found seroprevalence rates of 29.1%, 26.7%, and 1.2% for HBV, HIV, and HCV, respectively, in OC patients. The healthy control group had HBV and HIV seroprevalence rates of 3.9% for each with no positive HCV case. HBV/HIV coinfection was noted only in the OC group with a positivity rate of 17.4%. In summary, we found higher HBV and HIV seroprevalence in Kenyan OC patients compared to the healthy control group, whereas HCV prevalence was reflective of the general population. Hence, we recommend screening for HBV and HIV among OC patients destined for anticancer treatment.
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- 2022
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10. COVID-19 and access to cancer care in Kenya: patient perspective.
- Author
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Umar S, Chybisov A, McComb K, Nyongesa C, Mugo-Sitati C, Bosire A, Muya C, and Leach CR
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- Adolescent, Adult, COVID-19 economics, COVID-19 prevention & control, Female, Humans, Kenya epidemiology, Male, Middle Aged, Neoplasms diagnosis, Neoplasms economics, Neoplasms epidemiology, SARS-CoV-2, Time-to-Treatment, Travel, Young Adult, COVID-19 epidemiology, Health Services Accessibility, Neoplasms therapy
- Abstract
COVID-19 disruptions severely impacted access to health services for noncommunicable diseases, including cancer, but few studies have examined patient perspectives of COVID-19-induced barriers to care in low/middle-income countries. Data come from a survey completed online, over the phone or in person of 284 adult people with cancer in Kenya. One-third (36%) of participants had primary or no education and 34% had some or complete secondary education. Half of the participants (49%) were aged 40 to 59, 21% were 18 to 39 and 23% were 60 or older. Two-thirds were female (65%) and most visited a national referral hospital in Nairobi to receive care (84%). Mean travel time to Nairobi from the respondent county of residence was 2.47 hours (±2.73). Most participants reported decreased household income (88%) and were worried about their ability to afford cancer treatment due to COVID-19 (79%). After covariate adjustment, participants who lost access to hospitals due to COVID-19 travel restrictions were 15 times more likely to experience a cancer care delay (OR = 14.90, 95% CI: 7.44-29.85) compared to those with continued access to hospitals. Every additional hour of travel time to Nairobi from their county of residence resulted in a 20% increase in the odds of a cancer care delay (OR = 1.20, 95% CI: 1.06-1.36). Transportation needs and uninterrupted access to cancer care and medicines should be accounted for in COVID-19 mitigation strategies. These strategies include permits for cancer patients and caregivers to travel past curfew time or through block posts to receive care during lockdowns, cash assistance and involving patient navigators to improve patient communication., (© 2021 The Authors. International Journal of Cancer published by John Wiley & Sons Ltd on behalf of UICC.)
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- 2022
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11. Supporting Kenyan women with advanced breast cancer through a network and assessing their needs and quality of life.
- Author
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Shaikh AJ, Dhillion N, Shah J, Kathomi C, Kiragu A, Asirwa FC, Nyongesa C, Kasmani R, Abayo I, Kirathe G, and Sayed S
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- Educational Status, Female, Humans, Kenya, Breast Neoplasms therapy, Quality of Life
- Abstract
Introduction: Metastatic breast cancer (MBC) patients have several unmet needs. The needs and quality of life of MBC women living in sub-Saharan Africa (SSA) are understudied. Facilitating the interaction of various caregivers is beneficial in addressing the needs. Internet-based resources play an important role in reaching out to these patients. We aimed to bring the various stakeholders into a joint network force, create a web-based portal, understand the needs of MBC patients, and assess the utilization of web-based resources for women from Kenya., Methods: A network of various stakeholders considered crucial in the care of Kenyan women with MBC was created. We conducted educational camps and assessed their needs, quality of life (QoL), and knowledge. We assessed the impact of utilizing web-based resources by MBC patients from here., Results: We formed a network involving partners and launched the first dedicated website for MBC from Kenya. The website has received 13,944 visits and 310,379 hits in 2 years. One hundred fourteen women living with MBC were interviewed, and our findings show that psychological needs (63%), physical support needs (60%), and health care system needs (55%) are leading areas of needs that increase with rural residence (p = 0.001), less education (p = 0.003), and aggressive treatments (p = 0.008). Quality of life (QoL) confirmed better scores with urban residence (p = 0.002), internet access (p = 0.010), and stable disease (p = 0.042)., Conclusions: Creating a network of caregivers provides opportunities for cohesive efforts in understanding the psychosocial and medical needs of patients with MBC. Internet-based resources are an effective way of reaching out to them. Kenyan patients show extremely good uptake of internet-based resources., (© 2021. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.)
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- 2022
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12. Cervix Cancer in Sub-Saharan Africa: An Assessment of Cervical Cancer Management.
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Burt LM, McCormak M, Lecuru F, Kanyike DM, Bvochora-Nsingo M, Ndlovu N, Scott AA, Anorlu RI, Sharma V, Plante M, Nyongesa C, Tigeneh W, Fakie N, Suneja G, and Gaffney DK
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- Africa South of the Sahara epidemiology, Africa, Northern, Clinical Trials as Topic, Early Detection of Cancer, Female, Humans, Papillomavirus Infections diagnosis, Papillomavirus Infections therapy, Papillomavirus Vaccines, Uterine Cervical Neoplasms diagnosis, Uterine Cervical Neoplasms therapy
- Abstract
Purpose: Underdeveloped nations carry the burden of most cervical cancer, yet access to adequate treatment can be challenging. This report assesses the current management of cervical cancer in sub-Saharan Africa to better understand the needs of underdeveloped nations in managing cervical cancer., Methods: A pre- and postsurvey was sent to all centers participating in the Cervical Cancer Research Network's 4th annual symposium. The pre- and postsurvey evaluated human papillomavirus and HIV screening, resources available for workup and/or treatment, treatment logistics, outcomes, and enrollment on clinical trials. Descriptive analyses were performed on survey responses., Results: Twenty-nine centers from 12 sub-Saharan countries saw approximately 300 new cases of cervical cancer yearly. Of the countries surveyed, 55% of countries had a human papillomavirus vaccination program and 30% (range, 0%-65%) of women in each region were estimated to have participated in a cervical cancer screening program. In the workup of patients, 43% of centers had the ability to obtain a positron emission tomography and computed tomography scan and 79% had magnetic resonance imaging capabilities. When performing surgery, 88% of those centers had a surgeon with an expertise in performing oncological surgeries. Radiation therapy was available at 96% of the centers surveyed, and chemotherapy was available in 86% of centers. Clinical trials were open at 4% of centers., Conclusion: There have been significant advancements being made in screening, workup, and management of patients with cervical cancer in sub-Saharan Africa; yet, improvement is still needed. Enrollment in clinical trials remains a struggle. Participants would like to enroll patients on clinical trials with Cervical Cancer Research Network's continuous support.
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- 2021
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13. Improving the management of hypertension and diabetes: An implementation evaluation of an electronic medical record system in Nairobi County, Kenya.
- Author
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Oyugi B, Makunja S, Kabuti W, Nyongesa C, Schömburg M, Kibe V, Chege M, Gathu S, Wanyee S, and Sahal M
- Subjects
- Computer Systems, Electronic Health Records, Humans, Kenya, Diabetes Mellitus therapy, Hypertension therapy
- Abstract
Objective: To evaluate the implementation of a novel electronic medical record (EMR) system for management of non-communicable diseases (NCD) (hypertension (HTN) and diabetes mellitus (DM)) in health facilities in informal settlements in Nairobi. Questions of interest were on the use of, perception of the HCWs, and scalability and sustainability of the EMR system., Method: The study utilised a descriptive and analytical implementation evaluation through a convergent parallel mixed-methods design in 33 health facilities in the informal settlements in Nairobi County, Kenya. We carried out semi-structured interviews with the county and sub-county health management staff (n = 9), facility in-charges (n = 8), healthcare workers (HCW) (n = 35), and project staff (n = 7). Additionally, quantitative analysis, trend analysis, critical evaluation and costing were done. Qualitative data were analysed thematically using NVIVO while quantitative data were analysed using Excel and Stata software., Results: The EMR system significantly improved data capture and management of HTN and DM patients. The system helped clinicians to adhere to treatment and management guidelines and in clinical decision making. Most HCWs had a positive attitude and perceptions about the EMR system, and it was a good initiative for improving the quality and standardisation of care. The data captured made it easier to generate health facility and clinics reports which were essential for planning and decision-making processes. A critical audit of the EMR system features showed adequate general design features (data elements, structure and organisation, ease of use, accessibility, interfaces, confidentiality, access limitation, accuracy and integrity)., Discussion: Use of the EMR helped in improving patients care. The technology not only enhanced assurance of patients' information safety and availability but also supported in clinical decision making and standardisation of care. Successful implementation of the technology is dependent on positive perception and attitude of the HCWs. While the initial cost of setting and managing the EMR is high, future maintenance cost could be lower, making it sustainable in the long run. However, it is vital for future implementors to source for adequate funds to run it to completion if it is to achieve its objective., (Copyright © 2020 Elsevier B.V. All rights reserved.)
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- 2020
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14. Factors influencing choice of skilled birth attendance at ANC: evidence from the Kenya demographic health survey.
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Nyongesa C, Xu X, Hall JJ, Macharia WM, Yego F, and Hall B
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- Adult, Choice Behavior, Delivery, Obstetric psychology, Educational Status, Female, Health Surveys, Humans, Kenya, Logistic Models, Patient Acceptance of Health Care psychology, Pregnancy, Prenatal Care psychology, Social Class, Young Adult, Delivery, Obstetric statistics & numerical data, Midwifery statistics & numerical data, Patient Acceptance of Health Care statistics & numerical data, Pregnant People psychology, Prenatal Care statistics & numerical data
- Abstract
Background: In Kenya, skilled attendance at delivery is well below the international target of 90% and the maternal mortality ratio is high at 362 (CI 254-471) per 100,000 live births despite various interventions. The preventative role of skilled attendance at delivery makes it a benchmark indicator for safe motherhood., Methods: Maternal health data from the Service Provision Assessment Survey, a subset of the 2010 Kenya Demographic Health Survey was analyzed. Logistic regression models were employed using likelihood ratio test to explore association between choice of skilled attendance and predictor variables., Results: Overall, 94.8% of women are likely to seek skilled attendance at delivery. Cost, education level, number of antenatal visits and sex of provider were strongly associated with client's intention to deliver with a skilled birth attendant at delivery. Women who reported having enough money set aside for delivery were 4.34 (p < 0.002, 95% CI: 1.73; 10.87) times more likely to seek skilled attendance. Those with primary education and above were 6.6 times more likely to seek skilled attendance than those with no formal education (p < 0.001, 95% CI: 3.66; 11.95). Women with four or more antenatal visits were 5.95 (p < 0.018, 95% CI: 1.35; 26.18) times more likely to seek skilled attendance. Compared to men, female providers impacted more on the client's plan (OR = 2.02 (p < 0.014, 95% CI: 1.35; 3.53)., Conclusion: Interventions aimed at improving skilled attendance at delivery should include promotion of formal education of women and financial preparation for delivery. Whenever circumstances permit, women should be allowed to choose gender of preferred professional attendant at delivery.
- Published
- 2018
- Full Text
- View/download PDF
15. Development and delivery of evidence-based messages to reduce the risk of zoonoses in Nairobi, Kenya.
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Kang'ethe E, Kimani V, Grace D, Mitoko G, McDermott B, Ambia J, Nyongesa C, Mbugua G, Ogara W, and Obutu P
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- Adult, Age Factors, Aged, Agriculture, Animals, Cattle, Cattle Diseases epidemiology, Cattle Diseases prevention & control, Cattle Diseases transmission, Child, Preschool, Communicable Diseases, Emerging epidemiology, Communicable Diseases, Emerging prevention & control, Communicable Diseases, Emerging transmission, Communicable Diseases, Emerging veterinary, Community Networks, Community-Based Participatory Research, Cryptosporidiosis epidemiology, Cryptosporidiosis transmission, Cryptosporidiosis veterinary, Female, Health Knowledge, Attitudes, Practice, Humans, Kenya epidemiology, Male, Risk Factors, Sex Factors, Socioeconomic Factors, Young Adult, Zoonoses etiology, Zoonoses transmission, Cryptosporidiosis prevention & control, Urban Health education, Zoonoses epidemiology
- Abstract
This paper describes a trans-disciplinary process of co-generating and disseminating evidence-based messages for reducing the risk from cryptosporidiosis and other zoonoses in an urban community in Nairobi. Research findings about disease prevalence, risk factors and observed risky and risk-mitigating practices were analysed by a team comprising researchers, community members and local policy- and decision-makers. Using participatory planning, multiple strategies were developed for disseminating key information. We identified five vulnerable groups at higher risk of exposure to cryptosporidiosis and other cattle zoonoses with similar transmission pathways (women, children, elderly people, immunosuppressed people and male farm workers). For each group, targeted messages were developed. Good practices already in use, as were also practices as practices to improve environmental conditions. These messages were disseminated through printed material, in a workshop, through community campaigners and also an edutainment soap opera episode broadcast on Kenyan television. In conclusion, a participatory and trans-disciplinary process can help transform the findings of research into messages that are targeted, attractive and understandable.
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- 2012
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16. Prevalence of cryptosporidiosis in dairy cattle, cattle-keeping families, their non-cattle-keeping neighbours and HIV-positive individuals in Dagoretti Division, Nairobi, Kenya.
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Kange'the E, McDermott B, Grace D, Mbae C, Mulinge E, Monda J, Nyongesa C, Ambia J, and Njehu A
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- Acquired Immunodeficiency Syndrome complications, Adolescent, Adult, Animals, Cattle, Cattle Diseases parasitology, Child, Child, Preschool, Coinfection epidemiology, Communicable Diseases, Emerging complications, Communicable Diseases, Emerging epidemiology, Communicable Diseases, Emerging parasitology, Communicable Diseases, Emerging veterinary, Cross-Sectional Studies, Cryptosporidiosis complications, Cryptosporidiosis parasitology, Feces parasitology, Female, Fluorescent Antibody Technique veterinary, Follow-Up Studies, Humans, Kenya epidemiology, Male, Middle Aged, Oocysts growth & development, Parasite Egg Count veterinary, Prevalence, Surveys and Questionnaires, Urban Health, Young Adult, Zoonoses parasitology, Acquired Immunodeficiency Syndrome epidemiology, Cattle Diseases epidemiology, Cryptosporidiosis epidemiology, Cryptosporidiosis veterinary, Cryptosporidium isolation & purification, Dairying, Zoonoses epidemiology
- Abstract
This paper reports a study estimating the prevalence of cryptosporidiosis, an emerging zoonosis, in people and cattle in Dagoretti, Nairobi. A repeated cross-sectional survey was carried out among randomly selected cattle keepers in Dagoretti, their dairy cattle and their non-cattle-keeping neighbours in the dry and wet seasons of 2006. A survey was also carried out among a group of people living with human immunodeficiency virus (HIV). Faecal samples were examined for Cryptosporidium oocysts using the modified Ziehl-Neelsen method; 16 % of the samples were also examined using immunofluorescence antibody (IFA) technique. Quality control consisted of blind reviews of slides, examining split samples and confirming slide results with IFA. We found that members of dairy households had a dry season cryptosporidiosis prevalence of 4 % and wet season prevalence of 0.3 %, and non-dairy households, a prevalence of 5 and 0 %, respectively. The cattle dry season prevalence was 15 %, and the wet season prevalence, 11 %. The prevalence in people living with HIV was 5 %. The laboratory quality control system showed some inconsistency within and between different tests, indicating challenges in obtaining consistent results under difficult field and working conditions. In conclusion, this is the first reported study to simultaneously survey livestock, livestock keepers and their neighbours for cryptosporidiosis. We failed to find evidence that zoonotic cryptosporidiosis is important overall in this community. This study also draws attention to the importance of quality control and its reporting in surveys in developing countries.
- Published
- 2012
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17. Cryptosporidium species detected in calves and cattle in Dagoretti, Nairobi, Kenya.
- Author
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Kang'ethe EK, Mulinge EK, Skilton RA, Njahira M, Monda JG, Nyongesa C, Mbae CK, and Kamwati SK
- Subjects
- Animals, Cattle, Cattle Diseases epidemiology, Cloning, Molecular, Coinfection epidemiology, Coinfection veterinary, Communicable Diseases, Emerging epidemiology, Communicable Diseases, Emerging parasitology, Communicable Diseases, Emerging veterinary, Cryptosporidiosis epidemiology, Cryptosporidiosis parasitology, Cryptosporidium isolation & purification, Cryptosporidium parvum classification, Cryptosporidium parvum genetics, Cryptosporidium parvum isolation & purification, Feces parasitology, Female, Kenya epidemiology, Male, Molecular Sequence Data, Phylogeny, Polymerase Chain Reaction veterinary, RNA, Ribosomal, 18S genetics, Sequence Analysis, RNA, Urban Health, Zoonoses epidemiology, Cattle Diseases parasitology, Cryptosporidiosis veterinary, Cryptosporidium classification, Cryptosporidium genetics, RNA, Protozoan genetics, Zoonoses parasitology
- Abstract
A total of 1,734 cattle faecal samples from 296 dairy-keeping households were collected from urban settings in Nairobi, Kenya. Modified Ziehl-Neelsen staining method and an immunofluorescence assay were used to identify those samples with Cryptosporidium oocyst infection. Oocysts from positive faecal samples were isolated by Sheather's sucrose flotation method and picked from the concentrate using cover slips. Genomic DNA was extracted from 124 of the faecal samples that were positive for Cryptosporidium and was used as template for nested PCR of the 18S rRNA gene. Twenty-five samples (20 %) were PCR-positive for Cryptosporidium, and 24 of the PCR products were successfully cloned and sequenced. Sequence and phylogenetic analysis identified 17 samples (68 %) as Cryptosporidium parvum-like, four samples (16 %) as Cryptosporidium ryanae, three samples (12 %) as Cryptosporidium andersoni and one sample (4 %) as Cryptosporidium hominis. To the best of our knowledge, this is the first genotyping study to report C. parvum-like, C. andersoni and C. hominis in cattle from Kenya. The results of this study show Cryptosporidium infections in calves and cattle may be potential zoonotic reservoirs of the parasite that infects humans.
- Published
- 2012
- Full Text
- View/download PDF
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