Phage typing strains of Staphylococcus aureus resistant to antibiotics, isolated from milk

  • Wanderley Pereira de Araújo Universidade de São Paulo, Faculdade de Medicina Veterinária e Zootecnia, Departamento de Clínica Médica, São Paulo, SP
Keywords: Bacteriophage typing, S. aureus, Milk, Microbial sensitivity tests

Abstract

In this study, 201 strains of S. aureus were isolated from crude milk and submitted to antibiotic resistance by the disc diffusion method using impregnated paper discs with the following antibiotics: amikacin, ampicillin, cephalotin, cephoxitin, chloramphenicol, clindamycin, oxacylin, penicillin, tetracycline, tobramycin and vancomycin. With the exception of 88 (43.8%), 90 (44.8%), 24 (11.9%) e 40 (19.9%) resistant strains to penicillin, ampicillin, chloramphenicol and tetracycline, respectively, it was verified that most of the 201 strains (95% or more) showed sensitivity to the others tested antibiotics. The strains resistant to these four antibiotics were phage-typified with the basic international set of phages for S. aureus of human and bovine origin and showed predominant sensitivity to the phage of the groups III and III/No Classified from the human basic set and to the phage groups III, IV and to the association III/IV from the bovine set.

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Published
1998-01-01
How to Cite
Araújo, W. (1998). Phage typing strains of Staphylococcus aureus resistant to antibiotics, isolated from milk. Brazilian Journal of Veterinary Research and Animal Science, 35(4), 161-165. https://doi.org/10.1590/S1413-95961998000400003
Section
VETERINARY MEDICINE