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Determination of in vitro microbial sensitivity in Enterococcus spp. isolated from cases of bovine mastitis and milk from bulk tanks

Grant number: 18/09103-0
Support Opportunities:Scholarships in Brazil - Scientific Initiation
Effective date (Start): July 01, 2018
Effective date (End): June 30, 2019
Field of knowledge:Agronomical Sciences - Veterinary Medicine - Preventive Veterinary Medicine
Principal Investigator:Felipe de Freitas Guimarães
Grantee:Gustavo Nunes de Moraes
Host Institution: Faculdade de Medicina Veterinária e Zootecnia (FMVZ). Universidade Estadual Paulista (UNESP). Campus de Botucatu. Botucatu , SP, Brazil


Vancomycin-resistant enterococci (VRE) are often resistant to multiple antimicrobials, have a wide geographical distribution, and currently represent a major cause of nosocomial infections. The most isolated Enterococcus species are E. faecium and E. faecalis. They can be isolated from the intestinal tract, feces, infected udders and the environment. Enterococci are present causing intramammary infection (IMI) cases of clinical and subclinical mastitis in dairy herds and contaminating bulk tanks. However, the data are scarce in relation to the microbial sensitivity of these strains isolated in milk production, both in the animals and in bulk tanks. The objective of the present study is to determine the "in vitro" microbial profile of enterococci isolated from milk samples in dairy cattle herds and bulk tanks in order to evaluate the potential risk to human health of these multiresistant strains.

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