Antibiotic resistance of raw-milk-associated psychrotrophic bacteria.
The present study proposed to evaluate the breadth of antibiotic resistance among psychrotrophic bacteria spoiling raw milks in Finland. A core of 60 isolates, retrieved from farms, trucks, and silos, phenotypically characterized, were analysed with ATB PSE strips, composed of a panel of 17 beta-lactams and non-beta-lactams antibiotics, representatives of five classes. Surprisingly, 60% of the psychrotrophs harboured multiresistant traits. We observed an increase of this feature along the cold chain of raw milk transportation.
Munsch-Alatossava
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Department of Food Technology, P.O. Box 66, University of Helsinki, Helsinki FIN-00014, Finland. patricia.munsch@helsinki.fi
Alatossava
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D000818:Animals; D000900:Anti-Bacterial Agents / Q000494:pharmacology*; D002417:Cattle; D002418:Cattle Diseases / Q000188:drug therapy / Q000382:microbiology*; D024901:Drug Resistance, Multiple, Bacterial; D005516:Food Microbiology; D006094:Gram-Positive Bacteria / Q000187:drug effects* / Q000302:isolation & purification; D016908:Gram-Positive Bacterial Infections / Q000188:drug therapy / Q000382:microbiology / Q000662:veterinary*; D008826:Microbial Sensitivity Tests; D008892:Milk / Q000382:microbiology*
D000900:Anti-Bacterial Agents