Prevalence and risk factors of Theileria equi infection in horses in Minas Gerais, Brazil

Autor: M. H. F. Rosa, Antônio Marcos Guimarães, Adriana Mello Garcia, Christiane Maria Barcellos Magalhães da Rocha, Manoel Junqueira Maciel Ribeiro, Fábio Raphael Pascoti Bruhn, Izabela de Assis Rocha
Rok vydání: 2016
Předmět:
Zdroj: Veterinary Parasitology: Regional Studies and Reports. :18-22
ISSN: 2405-9390
DOI: 10.1016/j.vprsr.2016.05.005
Popis: Theileria equi, a protozoon in the phylum Apicomplexa, is the causative agent of equine theileriosis. The aim of this cross-sectional study was to determine the prevalence of IgG antibodies against T. equi, by using the indirect fluorescent antibody test (IFAT) reaction and correlating the serostatus with some epidemiological variables relating to the way in which Mangalarga Marchador horses are raised in southern Minas Gerais, Brazil. In this study, 506 horses were used, all clinically healthy, on 53 horse farms distributed across 27 municipalities in southern Minas Gerais. The statistical tests, comprising the chi-square test and generalized estimating equations (GEE), were performed in the SPSS Statistics 20.0 software. The true seroprevalence of T. equi among the horses was 57.0% (288 out of 506; ranging from 52.1 to 62.0%) and among horse farms, 98.1% (52 out of 53; ranging from 90.3 to 99.9%). The horse farms on which the majority of the horses presented good body condition and which did not use chemical products to kill ticks when new horses were introduced, had horses over the age of 5years, comprised
Databáze: OpenAIRE
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