Italian Journal of Food Safety (Mar 2010)

METHICILLIN-RESISTANT STAPHYLOCOCCUS AUREUS STRAINS IN FOOD AND ANIMAL

  • A. Traversa,
  • D.M Bianchi,
  • C. Parlato,
  • L. Fossati,
  • P. Cavallerio,
  • L. Domenis,
  • R Spedicato,
  • A. Battisti,
  • L Decastelli

DOI
https://doi.org/10.4081/ijfs.2010.7.65
Journal volume & issue
Vol. 1, no. 7
pp. 65 – 69

Abstract

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Some authors reported the possibility of a methicillin-resistant Staphylococcus aureus (MRSA) human infections from meat and dairy products and methicillin-resistant Staphylococcus intermedius isolation in animals. The aim of this study is to investigate the methicillin-resistance in S. aureus strains and in S. intermedius strains (food and wild animals). 236 S.aureus strains from food, 36 S.aureus strains and 1 S. intermedius strain from wild animals were analyzed. 2 (0.74%) MRSA strains from bovine milk were phenotipically resistant to cefoxitin, grew on chromogenic medium (MRSA Brilliance Oxoid) and were mecA positive. All MRSA strains had the spa-type t899. All mecA positive strains showed at least resistance to eight of the antibiotics tested but none to glicopeptides. Both MRSA strains were enterotoxigenic.

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