Dairy production practices and associated risks for bovine vaccinia exposure in cattle, Brazil.
| Autor: | Borges IA; Departamento de Microbiologia, Brazil., McCollum AM; Centers for Disease Control and Prevention, Atlanta, GA, USA., Mehal JM; Centers for Disease Control and Prevention, Atlanta, GA, USA., Haberling D; Centers for Disease Control and Prevention, Atlanta, GA, USA., Dutra LAL; Departamento de Microbiologia, Brazil., Vieira FN; Departamento de Biologia Geral, Universidade Federal de Minas Gerais, Brazil., Andrade LAO; Departamento de Microbiologia, Brazil., Kroon EG; Departamento de Microbiologia, Brazil., Holman RC; Centers for Disease Control and Prevention, Atlanta, GA, USA., Reynolds MG; Centers for Disease Control and Prevention, Atlanta, GA, USA., Trindade GS; Departamento de Microbiologia, Brazil. |
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| Jazyk: | angličtina |
| Zdroj: | New microbes and new infections [New Microbes New Infect] 2017 Aug 16; Vol. 20, pp. 43-50. Date of Electronic Publication: 2017 Aug 16 (Print Publication: 2017). |
| DOI: | 10.1016/j.nmni.2017.08.004 |
| Abstrakt: | A cross-sectional serosurvey was performed to identify environmental features or practices of dairy farms associated with risk for exposure to vaccinia-like viruses in dairy cattle in Brazil. Sera from 103 cows from 18 farms in Minas Gerais state were examined for Orthopoxvirus -neutralizing antibodies. A database of 243 binary or multiple-selection categorical variables regarding the physical features and surrounding ecology of each property was obtained. Thirteen of 46 presumptive predictor variables were found to be significantly associated with Orthopoxvirus serostatus by univariate logistic regression methods. Use of teat sanitizer and having felids on the property were independently associated with virus exposure by multivariable analysis. Rodents have long been suspected of serving as maintenance reservoirs for vaccinia-like viruses in Brazil. Therefore, domestic felids are not only effective predators of small rodent pests, but also their urine can serve as a deterrent to rodent habitation in buildings such as stables and barns. These results corroborate previous evidence of the high significance of rodents in the Vaccinia virus transmission cycle, and they also raise questions regarding the common use of teat sanitizers in dairy production areas. |
| Databáze: | MEDLINE |
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