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- Title
Aspectos epidemiológicos de um surto de babesiose cerebral em bovinos em zona livre de carrapato.
- Authors
Schild, Ana Lucia; Ruas, Jerônimo Lopes; Farias, Nara Amelia; Grecco, Fabiane Borelli; Soares, Mauro Pereira
- Abstract
An outbreak of babesiosis by Babesia bovis is reported in cattle in the municipality of Santa Vitória do Palmar, considered a Rhipicephalus (Boophilus) microplus free area, in southern Brazil on a farm located at Latitude S 33°05'23" and Longitude WO 53°09'29". In mid November four bulls, four cows and two heifers originated from the municipality of Minas do Leão, RS, a tick endemic area, located at Latitude S 30°12'07" and Longitude WO 52°03'25" were introduced in the herd. Forty out of 393 adult cattle died. The first bovine died on January 19 and the last on March 2. The diagnosis of babesiosis was performed by the observation of gross lesions and numerous B. bovis organisms in smears of the cerebral cortex. It is suggested that the mean temperatures between 23.2°C and 23.6°C and the relative humidity between 75.3% and 77.5° observed in the period allowed the occurrence of a tick generation, which caused infection by B. bovis in cattle without immunity.
- Subjects
BRAZIL; EPIDEMIOLOGICAL research; VETERINARY protozoology; INTRACRANIAL aneurysms; CEREBRAL anoxia; BABESIOSIS; PROTOZOAN diseases; CEREBRAL cortex; CATTLE
- Publication
Ciência Rural, 2008, Vol 38, Issue 9, p2646
- ISSN
0103-8478
- Publication type
Article
- DOI
10.1590/S0103-84782008005000010