Horizontal study of vaccinia virus infections in an endemic area: epidemiologic, phylogenetic and economic aspects

Autor: Alexandre Fagundes Pereira, Felipe L. Assis, Leandra Barcelos Figueiredo, Giliane de Souza Trindade, Jônatas Santos Abrahão, Luis M. Paim, Graziele Pereira Oliveira, Gabriel Magno Freitas de Almeida, Erna Geessien Kroon, Adriano Tanus, P. C. P. Ferreira, Ana Paula Moreira Franco-Luiz
Rok vydání: 2015
Předmět:
Zdroj: Archives of Virology. 160:2703-2708
ISSN: 1432-8798
0304-8608
DOI: 10.1007/s00705-015-2549-1
Popis: Vaccinia virus (VACV), the etiological agent of bovine vaccinia (BV), is widespread in Brazil and present in most of the milk-producing regions. We conducted a horizontal study of BV in Bahia, a state of Brazil in which the production of milk is increasing. During 2011, human and bovine clinical samples were collected during outbreaks for BV diagnosis, virus isolation and molecular analysis. We collected data for epidemiological inferences. Vaccinia virus was detected in 87.7 % of the analyzed outbreaks, highlighting the effective circulation of VACV in Bahia. The molecular data showed the spreading of group 1 Brazilian VACV to Bahia. We observed a seasonal profile of BV, with its peak in the drier and cooler season. Manual milking was observed in 96 % of the visited properties, showing its importance to viral spread in herds. Under-notification of BV, ineffective animal trade surveillance, and bad milking practices have contributed to the spread of VACV in Brazil.
Databáze: OpenAIRE
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