Occurrence of anti-Brucella abortus agglutinins in small ruminants in Sergipe

The objective this study was to evaluate the occurrence of small ruminants seropositive for Brucella abortus in Sergipe, Brazil. Samples of sheep (1,200) and goats (675) serum blood was collected from 101 farms of 25 counties of the three mesoregions of the state. The technique of Acidified Buffered...

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Bibliographic Details
Published in:	Arquivos do Instituto Biológico (São Paulo) Vol. 86
Main Authors:	Rizzo, Huber, Andrade, Rachel Livingstone Felizola Soares de, Menezes, Helen Carolina de Oliveira, Nascimento, Urias Fagner Santos, Silva, Ícaro Wille dos Santos, Jesus, Taile Katiele Sousa de, Carvalho, Jeferson Silva, Silva, Lília Márcia Paulin
Format:	Journal Article
Language:	English
Published:	2019
Online Access:	Get full text
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Summary:	The objective this study was to evaluate the occurrence of small ruminants seropositive for Brucella abortus in Sergipe, Brazil. Samples of sheep (1,200) and goats (675) serum blood was collected from 101 farms of 25 counties of the three mesoregions of the state. The technique of Acidified Buffered Acid stained with Rose Bengal (RB) was used and all samples confirmed a positive result using the 2-Mercaptoethanol technique. Four (0.21%) seropositive animals were diagnosed by technique AAT stained with RB, three sheep’s (0.25%) and a goat (0.15%), were confirmed by the 2ME test. In all the positive properties, the intercropping of small ruminants with cattle was adopted, favoring the contact with the agent. The prevalence of anti-B. abortus antibodies in herds of small ruminants in Sergipe is described for the first time, and is low, however, it is important to identify seropositive animals to be discarded due to their zoonotic potential. RESUMO: Objetivou-se avaliar a ocorrência de pequenos ruminantes soropositivos para Brucella abortus em Sergipe, Brasil, a partir de 1.200 amostras de soro sanguíneo de ovinos e 675 de caprinos, oriundos de 101 propriedades de 25 municípios das três mesorregiões do estado, nas quais foi empregada a técnica do Antígeno Acidificado Tamponado (AAT) corado com Rosa Bengala (RB) como triagem e do 2-Mercaptoetanol (2ME) como confirmatória. Foram diagnosticados 4 animais (0,21%) soropositivos pela técnica de AAT corado com RB, 3 ovelhas (0,25%) e 1 cabra (0,15%), que posteriormente foram confirmados pelo teste de 2ME. Em todas as propriedades positivas era adotada a criação consorciada de pequenos ruminantes com bovinos, favorecendo o contato com o agente causador. A ocorrência de anticorpos anti-B. abortus em rebanhos sergipanos de pequenos ruminantes é descrita pela primeira vez, e mostra-se baixa; entretanto, é importante a identificação de animais soropositivos para que sejam descartados, devido seu potencial zoonótico.
ISSN:	0020-3653 1808-1657
DOI:	10.1590/1808-1657000212019