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Nma Bida Alhaji,1 Paul Idoko Ankeli,2 Livinus Terhemba Ikpa,2 Olutayo Olajide Babalobi3 1Public Health and Epidemiology Department, Ministry of Livestock and Fisheries, Minna, Nigeria; 2Mycoplasma Laboratory, Bacterial Research Division, National Veterinary Research Institute, Vom, Nigeria; 3Department of Veterinary Public Health and Preventive Medicine, University of Ibadan, Ibadan, NigeriaCorrespondence: Nma Bida AlhajiMinistry of Livestock and Fisheries, AbdulKareem Lafene Secretariat Complex, Department of Public Health and Epidemiology, Minna PMB 175, NigeriaEmail nmabida62@gmail.comAbstract: Contagious bovine pleuropneumonia (CBPP) is an infectious and contagious respiratory disease of cattle, caused by Mycoplasma mycoides subsp. mycoides (Mmm). In this review, basic epidemiological features of CBPP, complicated by existing different strains of Mycoplasmas with similar biochemical characteristics, with preference to Sub-Saharan Africa are discussed. Many sub-Saharan African countries are challenged by variable gaps that include diagnostic tools and control strategies. Science-based issues on diagnostic procedures, vaccination, treatment, and other control strategies are discussed. Participatory epidemiology (PE), a diagnostic technique used in the identification and solving of animal health problems in rural communities, was also discussed. PE application, in conjunction with conventional diagnostic tools, will improve CBPP identification in pastoral rural communities and promote control of the disease in Africa. Furthermore, adequate CBPP control can be achieved through stronger political commitments from governments by prioritizing the disease among major diseases of high economic importance to the livestock industry for surveillance and control. Investment in CBPP control in endemic African countries will assure food security, livelihoods and the general well-being of people, and international trade.Keywords: contagious bovine pleuropneumonia, Mycoplasma mycoides subsp. mycoides, economic impact, diagnostic tools, control strategies, sub-Saharan Africa

The study was aimed at epidemiologically detecting, identifying and differentiating Mycoplasma mycoides subsp. mycoides strains according to their geographical origins in asymptomatic cattle populations of Niger State, Northcentral Nigeria between January and August 2013, using conventional and fingerprinting PCR assays without culturing or enriching of the field samples. Cross sectional molecular study of asymptomatic cattle sampled in the major abattoirs and livestock markets was carried out. Geographical lineage differentiation of the strains was performed on the basis of presence or absence of 8.84 kb genomic segment. With primers pair MM450/MM451, two 574 bp genomic fragments of DNA of Mycoplasma mycoides subsp. mycoides were detected. Using fingerprinting PCR; with insertion element IS1296/R(all) primers pair the detected two strains of Mycoplasma mycoides subsp. mycoides genomic DNA were specifically identified by generation of a fragment of 1.1 kb; with IS1296/R1 primers pair, identified Mycoplasma mycoides subsp. mycoides strains were differentiated to be of African cluster by generation of 1.4 kb. The PCR procedures were sensitive and produced rapid results that identified two strains of Mycoplasma mycoides subsp. mycoides of African/Australian origin. The presence of Mycoplasma mycoides subsp. mycoides African/Australian strains, which is useful for vaccine production, was therefore established in Niger State, Nigeria. [ABSTRACT FROM AUTHOR]

The processing line of West African soft cheese varieties (processed with Calotropis procera (Sodom apple) and Cymbopogon citratus (lemon grass) leaf extracts was assessed for nutrient compositions (nitrogen, crude protein, fat, lactose, moisture content), pH, total aerobic plate count and trace elements (Fe, Zn, Cu, Mn, Na, Ca, Mg and K). The percentage of nutrient composition, pH and the total aerobic plate count of microbes were: milk (nitrogen (2.05), protein (2.78), fat (5.33), lactose (1.86), moisture contents (88.75), pH (3.91) and total aerobic plate count (7.3logcfu/ml); Calotropis procera processed cheese (nitrogen (2.00), protein (2.56), fat (4.43), lactose (1.72), moisture contents (62.89), pH (3.58) and total aerobic plate count (7.34logcfu/ml); Cymbopogon citratus processed cheese (nitrogen (2.01), protein (2.53), fat (4.33), lactose (1.68), moisture contents (63.56), pH ( 3.56) and total aerobic plate count (7.43 logcfu/ml). There were significant differences between the parameters measured in the raw milk and processed cheese at 95% confidence limit. However, the parameters measured varied slightly in the two cheese varieties (Calotropis procera and Cymbopogon citratus). The total aerobic plate counts in milk and cheese were higher than international standards set by Codex alimentarius. Addition of leave extracts (Calotropis procera and Cymbopogon citratus) increased the total aerobic plate counts but the counts dropped at the curdling point during processing. Cymbopogon citratus cheese had a higher total aerobic plate count than the Calotropis procera cheese although not at a significant level. There was an increase in Fe, Zn, Cu and Na along the processing line, but a decrease ensued in Mn, Ca, Mg and K. There was no significant difference in the Zn, Cu, Mn, Ca, Mg, K, N, protein, fat and lactose contents of the two cheese types although all trace elements and nutrients assayed were higher in the Calotropis procera processed cheese with the exception of Fe content. The study suggests the use of Cymbopogon citratus leaf extract as a local milk coagulant due to reports of probable health hazard from the use of C. procera. However, further work on improving the yield of cheese when Cymbopogon citratus is used as coagulant is still necessary. [ABSTRACT FROM AUTHOR]

Nigeria, with a population of over 190 million people, is rated among the 10 countries with the highest burden of infectious and zoonotic diseases globally. In Nigeria, there exist a sub-optimal surveillance system to monitor and track priority zoonoses. We therefore conducted a prioritization of zoonotic diseases for the first time in Nigeria to guide prevention and control efforts. Towards this, a two-day in-country consultative meeting involving experts from the human, animal, and environmental health backgrounds prioritized zoonotic diseases using a modified semi-quantitative One Health Zoonotic Disease Prioritization tool in July 2017. Overall, 36 of 52 previously selected zoonoses were identified for prioritization. Five selection criteria were used to arrive at the relative importance of prioritized diseases based on their weighted score. Overall, this zoonotic disease prioritization process marks the first major step of bringing together experts from the human-animal-environment health spectrum in Nigeria. Importantly, the country ranked rabies, avian influenza, Ebola Virus Disease, swine influenza and anthrax as the first five priority zoonoses in Nigeria. Finally, this One Health approach to prioritizing important zoonoses is a step that will help to guide future tracking and monitoring of diseases of grave public health importance in Nigeria., Competing Interests: The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (© 2021 Published by Elsevier B.V.)

Milk has been envisaged as a major source of high-quality protein and bioavailable nutrients to humans. Its production is constraint by foot and mouth disease (FMD), a contagious viral disease of very high economic importance worldwide. This study was aimed at assessing the economic impact of FMD in pastoral dairy cattle herds in Nigeria and determines returns to investments in its control to better inform policy decisions. An interview questionnaire-based cross-sectional study was conducted in 660 nomadic and agro-pastoral dairy cattle herds in 2019. Economic impact analyses were conducted using the total economic cost and benefit-cost analysis models. Of the 660 pastoralists enrolled, 92.6% (n = 611) participated. Nomadic pastoralists constituted 50.7% (n = 310) of the respondents while 49.3% (n = 301) were agro-pastoralists. Most of the respondents (66.4%, n = 406) had no formal education. The value of visible losses to the herders was estimated at USD 15,591,694.30 and the cost of control by treatment of secondary infections was USD 463,673.70. The economic impact of FMD due to production losses and costs of treatment to pastoralists was estimated to be USD 16,055,368.00. Return on investment in FMD control was positive with a benefit-cost ratio of 33.6. The estimated total economic costs due to FMD have indicated that it is a disease of high economic importance to dairy production herds and must be controlled to assure food security, local incomes to herders, and protein requirement of human population, especially the children in FMD endemic countries., (Copyright © 2020 Elsevier B.V. All rights reserved.)

Contagious bovine pleuropneumonia is one of the most important trans-boundary disease affecting Fulani cattle herds of Nigeria and whose control is urgently needed. A Participatory Epidemiology approach and cross-sectional study were concurrently conducted to investigate qualitative and quantitative impacts of CBPP, respectively and associated socio-cultural factors that influenced exposure of Fulani nomadic pastoral communities to its risk in Niger State, North-central Nigeria between January and December 2013. A total of nine pastoral communities were purposively selected for qualitative impact assessment using Participatory Rural Appraisal tools, while 765 cattle randomly sampled from 125 purposively selected nomadic herds were analyzed using c-ELISA. Data on socio-cultural characteristics were collected using structured questionnaires administered on nomadic herd owners of the 125 selected herds. Kendall's Coefficient of Concordance W statistics and OpenEpi 2.3 were used for statistical analyses. Pastoralists' dependent factors associated with their socio-cultural activities were tested using Chisquare tests and likelihood backward logistic regressions. The mean proportional piles (relative qualitative impact) of CBPP was 12.6%, and nomads agreement on this impact was strong (W=0.6855) and statistically significant (P<0.001). This was validated by 16.2% (95% CI: 13.7, 19.0) sero-positive (quantitative impact). Highest sero-prevalence of 25.3% was observed in Northern agro-ecological zone, while lowest of 6.2% was in Eastern zone. Pastoralists in the age groups 51-60 and 61-70 years were more likely (OR 13.07; 95% CI: 3.21, 53.12 and OR 7.10; 95% CI: 1.77, 28.33, respectively) to have satisfactory information/awareness on CBPP and lowland transhumance pastoralists were more likely (OR 5.21; 95% CI: 2.01, 13.54) to have satisfactory information. Socio-cultural activities of extensive husbandry system was six times more likely (OR 5.79; 95% CI: 2.55, 13.13) to be satisfactory practice that influenced CBPP occurrence in herds, while culture of borrowing and loaning of cattle was twenty times more likely (OR 19.94; 95% CI: 6.36, 62.48) to be satisfactory practice that influenced CBPP occurrence in herds. Also, sharing a water source that caused concentration of stocks in one point was fifty three times more likely (OR 53.08; 95% CI: 14.91, 189.00) to be satisfactory practice that influenced occurrence of the disease in herds. This study highlighted the critical gap that exists in terms of significant influence of socio-cultural factors on CBPP occurrence in pastoral herds in Nigeria. Thus, CBPP surveillance, control and prevention programs that take these factors into consideration will be beneficial to the livestock industry in Nigeria, and indeed Africa., (Copyright © 2016 Elsevier B.V. All rights reserved.)

Introduction: Worldwide, three Influenza-A virus subtypes (H1N1, H1N2 and H3N2) in swine are major public health issues. In Nigeria, the existence of these subtypes in pigs has not been well studied. This study aimed at determining the prevalence and correlates of Influenza-A viruses circulating in piggery workers and pigs in Oke-aro and Goshen communities in Lagos, Nigeria., Methods: Nasal swabs were taken from 197 consenting piggery workers and 281 randomly selected pigs to determine the prevalence of Influenza-A (H1, H3, H5) using Reverse Transcriptase Polymerase Chain Reaction test (gene M). An interviewer administered questionnaire was used to collect information on demography, Influenza-A related symptoms experienced, personal hygiene and management practices from the piggery workers. Descriptive statistics was used and chi square test performed at 5% significant level., Results: All piggery workers and pigs' nasal swabs tested negative for Influenza-A viruses, hence, association could not be tested. Mean age of piggery workers was 41 ± 13.6 years and 60% were females. Forty two percent were farm attendants, 38.0% were pig farmers and the rest butchers. Nineteen percent had history of headache; 14.0% had catarrh and cough; 4.0% had sore-throat; 5.0% had diarrhea; while 48.0% had muscle pain at the time of data collection. The mean body temperature for the pig workers was 36.5 ± 0.5 °C. A significant difference (p<0.05) existed among piggery workers who had muscle pains., Conclusion: Piggery workers and pigs in study area were free of Influenza-A (H1, H3, H5) viruses. The current practices of the piggery workers should be encouraged.