Aspectos epidemiológicos da brucelose bovina no Estado do Maranhão no período de 2008 a 2014

Abstract

We conducted a study of a historical series type in the state of Maranhão-Brazil from 2008 to 2014, obtained from the monthly reports of the occurrence and diagnosis on brucellosis and on vaccination against brucellosis bovine disease, from the State Agency for Agricultural Defense in Maranhão (AGED-MA). The state was divided into four producers circuits (I, II, III, IV). The spatial representation of animal quantitative and reagents flocks, tested and vaccinated during the period studied was carried out. We analyzed 238,963 brucellosis tests where 2.21% of the tests were positive. In the analysis, it was found that the circuit II had a higher number of animals tested, disease outbreaks and vaccination coverage, certainly because this area had a bigger bovine herd and a wider movement area. The circuits I and III presented several municipalities without these specific program activities, showing areas of epidemiological silence. However, it was found that there was a reduction in the number of outbreaks and an increasing immunization coverage during the last years, probably due to the adoption of actions recommended by the PNCEBT.