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Moi University (2020)

Risk assessment of cystic hydatidosis in cattle slaughtered at Busia Town Abattoirs Kenya

Ogutu, Henry Joash Otieno

Titre : Risk assessment of cystic hydatidosis in cattle slaughtered at Busia Town Abattoirs Kenya

Auteur : Ogutu, Henry Joash Otieno

Université de soutenance : Moi University

Grade : Master of Science (MS) in Field Epidemiology 2020

Résumé partiel
Hydatidosis, a re-emerging parasitic zoonosis caused by larval stage of Echinococcus is endemic in South America, Asia and East Africa including Kenya. Globally, hydatidosis causes economic losses of more than three billion United States Dollars (USD) annually and in Kenya, losses are more than 240,000 USD. Known risk factors for transmission of E. granulosus include allowing dogs to roam freely, feeding dogs on infested viscera, slaughtering animals at home which lead to improper disposal of infested organs and carcasses, drinking non-boiled water, eating raw vegetables, failing to wash hands before meals, presence of wild carnivores near homesteads, low knowledge, attitude (KAP) and poor practices and uncontrolled movement of livestock from endemic to non-endemic areas. Busia offers livestock market for Kenya and Uganda. Objectives : The study estimated prevalence, identified possible risk of CH to Busia, and assessed KAP among cattle owners, traders and abattoir workers. Methods : A cross sectional study was conducted on cattle slaughtered in two Busia town abattoirs between May and June 2018. In-person interviews were done using a structured questionnaire to assess KAP of participants on hydatidosis and establish origin of each slaughtered animal. Routine meat inspection was done to determine CH infestation status of carcasses. Whole cysts were removed and put in labelled and zipped polythene bags for confirmation using polymerase chain reaction (PCR). Data were analyzed using Microsoft Excel and Epi info to calculate proportions, 95% confidence intervals and do logistic regressions for associated factors respectively. We used bivariate and logistic regression to examine factors associated with knowledge on CH among study participants. Results : A total of 302 carcasses ; 222 (73.51%) males and 80 (26.49%) females were inspected and 310 questionnaires administered to participants. Nine (2.98%, 95% CI : 1.46-5.78) carcasses were positive for hydatidosis ; eight (88.89%) carcasses were female and five of the nine positive cases (55.56%) had multiple organ infestations.


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