Prevalence and geographical distribution of bovine cysticercosis in the mesoregion of Northern Minas Gerais

Laura Lúcia Dos Santos Oliveira,José Reinaldo Mendes Ruas,Vicente Ribeiro Rocha Júnior,Dorismar David Alves,Fredson Vieira E Silva,Franklin Delano Dos Santos Soares,Leandro Farias Batista,Cleison Augusto Alves

doi:10.1590/s1519-99402121172020

Laura Lúcia Dos Santos Oliveira, José Reinaldo Mendes Ruas + Show 6 more

Open Access

https://doi.org/10.1590/s1519-99402121172020

Copy DOI

Abstract

ABSTRACT The knowledge of the prevalence of bovine cysticercosis is important for the implementation of control programs. The objective was to evaluate the prevalence and geographical distribution of bovine cysticercosis in Northern Minas Gerais. For that, 14,556 cattle were evaluated during the federal post-mortem inspection in 27 municipalities of five microregions: Janaúba, Montes Claros, Januária, Pirapora and Bocaiúva. The prevalence of Cysticercus bovis was 1.03% with distribution in all microregions evaluated of the northern Minas Gerais. All municipalities with a sampling number of cattle slaughtered above 543 showed positive animals for cysticercosis. The microregions of Bocaiúva, Montes Claros, Janaúba, Januária and Pirapora presented a prevalence of cysticercosis at 2.11%, 1.17%, 1.01%, 0.90% and 0.56%, respectively. The microregions of Montes Claros and Januária presented a greater chance of finding positive cattle for cysticercosis. As there are positive cases of cysticercosis in all microregions evaluated, there is a risk to human health.

Highlights

The bovine taeniasis-cysticercosis complex can be defined as a set of pathological alterations caused by the adult and larval forms of Taenia saginata
The prevalence of bovine cysticercosis was calculated from the diagnosis of confirmed cases of cysticercosis by visual inspection of the carcass performed by the federal inspection service (SIF)
Bovine cysticercosis is present in all microregions evaluated

Summary

Introduction

The bovine taeniasis-cysticercosis complex can be defined as a set of pathological alterations caused by the adult and larval forms of Taenia saginata. This zoonosis can be expressed in two distinct forms, taeniasis, which affects human, or cysticercosis, caused by the presence of Cysticercus bovis in bovine tissues (Magalhães et al, 2017). Infection of humans with T. saginata is common in areas of the world where sanitation is inadequate (Usip et al, 2011; Acevedo Nieto et al, 2012). The knowledge of the prevalence of bovine cysticercosis is important for the implementation of control programs (Acevedo Nieto et al, 2012). Anatomopathological diagnosis is the most important instrument in veterinary medicine, since the identification of cysticercosis at the time of animal slaughter is essential for the success of human taeniasis prevention programs (Côrtes, 2000)

Methods

Results

Conclusion