Soroepidemiological survey of chlamydia abortus infection in bovine in the State of Pernambuco, Brazil

Abstract

The objective of this study was to conduct a seroepidemiological survey of Chlamydia abortus infection in dairy cattle herds. A total of 303 blood serum samples were collected from 24 property in Vale do Ipanema microregion in the state of Pernambuco, Brazil. For the diagnosis of C. abortus infection, a commercial enzyme immunoassay kit (ELISA) was used. A prevalence of 34.0% (103/303; 95% CI: 28.7%-39.7%) of infected animals was identified. In 79.8% (19/24) of the properties, at least one infected animal was detected. The risk factors identified were: semi-intensive system (OR = 3.47, p ≤ 0.000), extensive system (OR = 8.14; p ≤ 0.000), supply of water in troughs and directly at the fountain (OR = 2.29, p = 0.002), pasture rent (OR = 1.72, p = 0.041), use of artificial insemination (AI) (OR = 3.07, p = 0.002), and use of AI associated with natural mount (OR = 2.22, p = 0.003). The occurrence of C. abortus infection in dairy cattle in the state of Pernambuco, Brazil, was recorded for the first time. It is concluded that the infection by this agent is present in the analyzed herds and that hygienic and sanitary management measures based on the identified risk factors should be implemented to avoid reproductive losses and losses to the producers.

Seroprevalence of antibodies to Chlamydia abortus and risk factors in cattle from Villavicencio, Colombia

“…(2005) . In Latin America, a similar seroprevalence has been determined in Peru with 40.34 % ( Loli-Pin et al., 2021 ); in Brazil a 34.0% seroprevalence in individuals and 79.8% in herd was reported ( da Silva Neto et al., 2021 ); on the contrary, in Costa Rica a study of 608 samples in bovines identified a seroprevalence of only 0.5% in ( Fonseca et al., 2015 ). In Ireland a low prevalence was also reported in a study were a value of 4.4% was determined in 100 herds (20 samples/herd) ( Wilson et al., 2012 ).…”