Geospatial distribution and risk factors for bovine cysticercosis in the state of Rondonia, Brazil

This study focused on assessing the prevalence, geospatial distribution and risk factors for bovine cysticercosis in cattle from the state of Rondonia, Brazil, through the years 2012 to 2015. The prevalence established was 0.014% (95% C. I. 0.013-0.014), with a higher detection of unviable cysticerci (84.80%). The municipalities of Itapua do Oeste, Candeias do Jamari, Nova Brasilandia D'Oeste, Pimenteiras do Oeste, Porto Velho, Nova Mamore, Urupa and Guajara-Mirim had higher risk (OR> 1; p< 0.05) for cysticercosis occurrence compared with the municipality of Castanheiras (OR= 1). The Administrative Regions of Porto Velho, Guajara-Mirim, Colorado D'Oeste, Cacoal, Ji-Parana had higher risk (OR> 1; p< 0.05) for cysticercosis occurrence in the slaughtered animals than those reared in Ariquemes Administrative Region (OR= 1). Some variables such as human population density (OR= 2.15; 2.15-2.16), percentage of urban houses with inappropriate sewage system (OR= 1.91, 1.91.1.92) and percentage of inappropriate rural sewage system (OR= 1.14, 1.14-1.14) were significantly associated (p< 0.05) with the occurrence of bovine cysticercosis. In conclusion, the prevalence of bovine cysticercosis in the state of Rondonia was 0.014% (95% C. I. 0.013-0.014) and higher-risk areas were identified, providing useful information to Official Sanitary Inspection System in order to improve cysticercosis detection. Also, human population density and the lack of appropriate sewage system in urban and rural areas are closely related to bovine cysticercosis occurrence in this state.