Dissertaçtion Rafaela Assis Oliveira

AUTHOR: Rafaela Assis Oliveira

TITLE: Temporal variation of vaccination rates against bovine brucellosis in southwestern Goiás

ADVISOR: Profa. Dra. Raphaella Barbosa Meirelles Bartoli and Profa. Dra. Carolina Alvarenga Cruz

DEFENSE DATE: 02/25/2021

ABSTRACT

Bovine brucellosis is a chronic infectious disease that may affect several animal species, including humans, characterizing it as a zoonosis. It is caused by a bactéria called Brucella abortus, which is the most important species in regards to bovines and buffaloes. The illness is acquired, especially, by the ingestion of food and water contaminated with the agent, and by contact with remaining placental tissue and aborted fetuses of other animals, culminating in cases of abortion. There are several losses related to this disease, among which, the monetary loss that with the replacement of the animals slaughtered due to the stamping out policy used to control the illness, and the reduced milk production and weight gain, can be observed as some of the most significant. In 2001, the “National Program to Control and Eradicate Animal Brucellosis and Tuberculosis” (PNCEBT) was published with the intent of reducing the number of cases of brucellosis. Among the measures established by the PNCEBT, the vaccination of females, the patronizing of the tests and diagnostics kits used, the stamping out of the animals reactive to brucellosis and the inspection of certified farms, can be accounted as some of the most important. The main measure adopted by the PNCEBT is vaccination, that aims at reducing the disease prevalence enough to allow the advance to the eradication phase.

Keywords: Abortion, Eradication, Immunization, Indicator, Prevalence.