Veterinary Public Health & Preventive Medicine

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    Porcine Cysticercosis In Slaughtered Pigs And Factors Related To Taenia Solium Transmission Amongst Abattoir Workers In Ibadan, Nigeria
    (2019) Adesokan,H.K; Adeoye,F.A
    Introduction: porcine cysticercosis is under-reported particularly in Nigeria, despite the reportedly high prevalence of epilepsy and associated life-threatening health implications. This study was aimed at determining the prevalence of porcine cysticercosis and factors related to Taenia solium transmission to humans. Methods: slaughtered pigs at a major abattoir, south-western Nigeria were randomly inspected and questionnaire was administered to pig workers/consumers while the data were analysed using Stata 12.0. Results: a 4.4% (11/250) prevalence of porcine cysticercosis was obtained; the age, breed, sex and body conditions of pigs were not significant for infection (p < 0.05). Further, none (0.0%) of the respondents knew that T. solium could cause epilepsy in man and 39.5% often defaecated on neighbouring open fields and farmlands. Respondents purchasing pork from home slaughter were about four and ten times less likely to demonstrate good knowledge (OR = 0.24; 95% CI: 0.08-0.74) and practice (OR = 0.10; 95% CI: 0.05-0.22) than those purchasing from abattoir. Moreover, those lacking toilet facility were about four and five times less likely to demonstrate good knowledge (OR = 0.24; 95% CI: 0.07-0.86) and practice (OR = 0.19; 95% CI: 0.08-0.45) than those who had it. Other factors associated with practices related to T. solium transmission included age (p = 0.000), sex (p = 0.000) and duration (p = 0.003). Conclusion: the increased odds of poor knowledge and practices related to Taenia solium transmission especially among respondents purchasing home slaughter pork and lacking toilet facility provides insights into the parasite epidemiology. Above findings are important in lowering the infection prevalence in pigs and humans in this endemic area.
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    Isolation of Mycobacterium tuberculosis from livestock workers and implications for zooanthroponotic transmission in Ibadan, South-western Nigeria
    (2018) CADMUS,S; AKINSEYE,V; ADEGBULU,A.A; OVWIGHOSE,N; AYOOLA,M; OGUGUA,J; ADESOKAN,H; CADMUS,E
    Introduction. Tuberculosis (TB) remains a public health problem in sub-Saharan Africa coupled with dearth of information about the disease among livestock workers at risk of infection. We determined the prevalence of pulmonary TB infection and factors associated with its occurrence among livestock workers in south-western Nigeria. Methods. A cross-sectional study was conducted using active case-finding among livestock workers with sub-clinical pulmonary TB between August 2014 and March 2015. Sputum samples were cultured and subjected to a two-step multiplex-PCR technique based on genus-typing and genomic regions-of-difference. Interviewer-administered questionnaire was utilized in assessing worker’s TB related knowledge and practices. Data were analysed using STATA 12. Results. Overall, 206 livestock workers (traders = 136; butchers = 70) were screened; 5.1% (7/136) of the traders and 7.1% (5/70) of the butchers had positive mycobacterial cultures. Molecular techniques identified one Mycobacterium tuberculosis with six non-tuberculous mycobacteria (NTM) from the traders and four M. tuberculosis with one NTM from the butchers. Participants within the age range of 50 years and above were at higher risk of being infected with TB (OR = 7.7; 95% CI: 1.7- 35.6) and majority had poor knowledge and practices regarding TB. Conclusions. We confirmed M. tuberculosis as the cause of pulmonary TB among the livestock workers, with implications for zooanthroponotic transmission of the disease along the humananimal ecosystem interface in Nigeria.
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    Sero-epidemiological survey and risk factors associated with brucellosis in dogs in south-western Nigeria
    (2015) CADMUS,S.I.B
    Introduction: In Nigeria, there is limited information on brucellosis particularly in dogs, despite its public health implications. We undertook a sero-epidemiological survey of brucellosis in dogs to determine the prevalence of the disease and associated risk factors for its occurrence in Nigeria. Methods: A cross-sectional study was conducted to screen dogs in south-western Nigeria for antibodies to Brucella sp using the rapid slide agglutination test (RSA) and Rose Bengal test (RBT), with positive samples confirmed respectively by serum agglutination test (SAT) and competitive enzyme linked immunosorbent assay (cELISA). Data were analyzed with STATA-12. Results: From the 739 dog sera tested, 81 (10.96%) were positive by RSA and 94 (12.72%) by RBT; these were corroborated with SAT (4/81; 4.94%) and Celisa (1/94; 1.06%), respectively. Logistic regression identified location (OR=0.04; 95% CI: 0.02-0.09), breed (OR=1.71; 95% CI: 1.34-2.19), age (OR=0.10; 95% CI: 0.04- 0.30) and management system (OR=8.51; 95% CI: 1.07-68.05) as risk factors for Brucella infection by RSA. However, location (OR=10.83; 95% CI: 5.48-21.39) and history of infertility (OR=2.62; 95% CI: 1.41-4.84) were identified as risk factors using RBT. Conclusion: Given the 10.96% to 12.72% seroprevalence of brucellosis recorded in this study, we advocate control of the disease in dogs, and public health education for those at risk of infection. Again, further studies are required to elucidate the role of dogs in the epidemiology of brucellosis in Nigeria considering the conducive human-animal interface and ecological factors responsible for the transmission of the disease.
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    Prevalence of previously undetected tuberculosis and underlying risk factors for transmission in a prison setting in Ibadan, south-western Nigeria
    (2014) Adesokan,H.K; Cadmus,E.O; Adeyemi,W.B; Lawal,O; Ogunlade,C.O; Osman,E; Olaleye,O.D; Cadmus,S.I.B
    People with congregational tendencies such as the prison inmates constitute an important target group in the global efforts towards the control of tuberculosis (TB). The prison setting in most developing countries particularly Nigeria, currently does not have routine diagnostic procedures for TB despite the existing risks that could facilitate disease transmission. We conducted a cross sectional study among the inmates in a major prison in south-western Nigeria for TB by screening their sputum samples using a simple random sampling method coupled with questionnaire interview, on the assumption of sub-clinical pulmonary TB infection. The overall TB prevalence found was 1.2% (2/164). Significant risk factors that could facilitate disease transmission in the prison included lack of BCG immunization (p = 0.017); history of contact with TB patients (p = 0.020); prolonged cough (p = 0.016) and drug abuse (p = 0.019). Our findings of 1.2% undetected pulmonary TB infection among the inmates though low; still reiterate previous observation that the prison setting constitutes a veritable environment for TB transmission and a threat to public health. Efforts are therefore needed to institute routine screening and reduce the risk factors associated with TB transmission among prison inmates in Nigeria.
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    Poor Slaughterhouse Waste Management: Empirical Evidences From Nigeria And Implications On Achieving Millennium Development Goals .
    (2014) Adesokan, H.K
    Adequate knowledge and practice of waste management among slaughterhouse workers can help limit the associated effects of poor disposal on access to safe water, environmental sustainability and quality of life which are core areas of Millennium Development Goals (MDGs). Data on knowledge, attitudes and practices of waste management of 390 randomly selected slaughterhouse workers in Nigeria were collected and analyzed using multiple regression statistics. The results reveal that the majority of the respondents had poor attitudes (75.6%) and practices (97.4%) of proper waste management, though 51.5% demonstrated good knowledge. While 51.3% knew that slaughterhouse wastes are related to diseases, 75.4% were unconcerned that poor management could be major public health and environmental hazards and 74.4% discharged slaughterhouse wastewater into surrounding streams. Gender, education and work experience were significantly associated with good knowledge (p <0.05). These poor attitudes and practices have negative implications on environmental health conditions, access to safe water and quality of life. Therefore, addressing poor slaughterhouse waste management issues in developing countries becomes imperative to making achieving the MDGs a reality.
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    Mycobacterium bovis infection in livestock workers in Ibadan, Nigeria: evidence of occupational exposure
    (2012) Adesokan,H.K; Jenkins,A.O; Soolingen,D.V; Cadmus,S.I.B
    bovine tuberculosis (TB) is endemic in the cattle population in nigeria. Livestock workers are at risk of mycobacterium bovis infection and unaware of their health status. Objective: to determine the occurrence of pulmonary M. bovis infection among livestock workers. design: a cross-sectional study of livestock traders was conducted for TB through screening of sputum samples using a simple random sampling method coupled with oral interview on the assumption of sub-clinical pulmonary TB infection. specimens were cultured, and the isolates analysed using molecular typing techniques. results: overall, 10% (7/70) of the livestock traders had a positive culture indicative of M. bovis (n = 2) and M. tuberculosis (n = 5) using deletion typing. further spoligotyping analyses of the M. tuberculosis isolates classified the strains as SB1432 and SB09444 and LAM-10 and T1 using respectively www.mbovis.org and spotclust databases. prolonged cough and >3years in the livestock trade were risk factors for infection. conclusion: we confirm that there is undetected pulmonary M. bovis infection among livestock traders in nigeria. further studies on the role of occupationally exposed workers in the transmission of M. bovis infection to the community are required.
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    Seroprevalence of Brucella abortus and B. canis in household dogs in southwestern
    (2011) Cadmus,S.I.B; Adesokan,H.K; Ajala,H.O; Odetokun,W.O; Perrett,L.L; Stack,J.A
    A preliminary serological study of 366 household dogs in Lagos and Ibadan, southwestern Nigeria, was carried out to determine antibodies due to exposure to Brucella abortus and B. canis, using the rose bengal test (RBT) and the rapid slide agglutination (RSA) test, respectively. Results showed that 5.46 % (20/366) and 0.27 % (1/366) of the dogs screened were seropositive to B. abortus and B. canis, respectively.Of all dogs, 36 had a history of being fed foetuses from cows and 11 (30.6 %) of these tested positive in the RBT. Our findings, although based on a limited sample size and a dearth of clinical details, revealed that dogs in Nigeria may be infected with Brucella spp. given the wide range of risk factors. Further studies are recommended to elucidate the epidemiology of brucellosis in dogs and its possible zoonotic consequences in the country.
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    using geographical information system to model the spread of tuberculosis in the university of ibadan,Nigeria.
    (2010) cadmus, S.I.B; adesokan,H.K; Akingbogun, A.A
    Nigeria currently ranks as the fourth highest burdened nation with tuberculosis (TB) globally; hence, new perspectives of addressing treatment and control of the diseases are needed. New technology, such as geographical information systems (GIS), may be useful in this process. we therefore sought to identify geographical areas where on-going TB transmission was occurring by linking GIS technology with diseases surveillance in a university community in Ibada , Nigeria. retrospective data of TB incidence between 2004 and 2007 from the health centre in the university were cartographically mapped to show current trends in the spread of the disease and its geographic dispersion among those infected using ArcGIS 9.2 software and global positioning system (GPS). a total of 71 cases were detected over the study period. the mean age for the affected population was 27.76+ 8.46(SD); fifty six (78.87%) PATIENTS BEING STUDENTS WHILE 15 (21.13%) WERE WORKERS. THE NEAREST NEIGHBOUR DISTANCE ANALYSIS INDICATED A CLUSTERED PATTERN OF LOCATIONS; WITH ZIP CODE 2-CHARACTERIZED BY OVERCROWDING AND LIMITED ROOM SPACE HAVING INCREASED likelihood of on-going transmission. this study therefore provides a preliminary synopsis of uses of GIS in tuberculosis control in Nigeria; hence the need to explore it on a a larger scale.
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    Seroprevalence of bovine brucellosis in trade cattle slaughtered in Ibadan, Nigeria, from 2004–2006.
    (2010) Cadmus, S.I.B; Adesokan,H.K; stack, J.A; Adedokun, B.O
    A seroprevalence study was carried out among trade cattle slaughtered at Bodija Municipal Abattoir, Ibadan (southwestern Nigeria) over a period of 3 consecutive years from 2004 to 2006 with a view to determining the breed, sex and age distribution in the seropositivity of bovine brucellosis. In total, 1642 animals were examined for antibodies to Brucella abortus using the Rose Bengal test. Seroprevalences of 6.00 %, 6.17 % and 5.31 % were obtained in the years 2004, 2005 and 2006, respectively but a decrease in 2006 shows no significantdifference (P>0.05). The role of the breed (P>0.05), sex (P>0.05) and age (P>0.05) in the occurrence of the infection was not statistically significant at 5 %, although higher rates were obtained for females and older animals. The trend in the disease over the 3-year period showed that it is endemic in trade cattle slaughtered in Ibadan and the public health implications of this are discussed.
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    Bovine fetal wastage in Southwestern Nigeria: a survey of some abattoirs.
    (2009) CADMUS, S.I.B.; ADESOKAN, H.K
    As a result of inadequate veterinary services and indiscriminate slaughter of animals inmost Nigerian abattoirs, pregnant animals are often slaughtered resulting in wastage of scarce protein made available to the people. To this end, an evaluation of the volume of pregnant cows slaughtered at some abattoirs in Southwestern Nigeria between 2005 and 2007 based on meat inspection records was carried out with a view to determining the level of fetal wastage in this part of the country. A total of 321,448 cows were slaughtered, out of which, 16,092 (5.01%) were pregnant. The fetal wastages across the four seasons of the study period were statistically significant (P<0.05); the late dry season showing the highest percentage. There was a downward trend across the years, and this was considerably lower in 2007 than the other 2 years which were not statistically different from each other (XA2005=224.33; XA2006=216.38; XB2007=126.38). Our results indicated a considerable level of slaughtering of pregnant cows in the abattoirs studied. Hence, we advocate stepping up routine veterinary checks and interventions among trade animals in order to salvage the high level of fetal wastage in the region and the country at large.