Characterization of methicillin-resistant and -susceptible staphylococcal isolates from bovine milk in northwestern china

PloS One
Longping LiXin Zhao

Abstract

Emergence of methicillin-resistant Staphylococcus aureus (MRSA) and methicillin-resistant coagulase-negative staphylococci (MR-CoNS) in bovine milk is a major public health concern. The primary purpose of this research was to determine molecular genetic characteristics and antibiotic resistance of staphylococcal isolates recovered from milk of mastitic cows in the Shaanxi Province in Northwestern China. One hundred and thirteen methicillin-susceptible Staphylococcus aureus (MSSA), one mecA-positive and phenotype-positive MRSA, seven mecA- and mecC- negative but phenotype-positive MRSA and two MR-CoNS including one oxacillin-susceptible mecA-positive Staphylococcus haemolyticus (OS-MRSH) and one mecA-positive and methicillin-resistant Staphylococcus epidermidis (MRSE) isolates were recovered from 214 quarter milk samples on 4 dairy farms. All above 123 isolates were subjected to antibiotic resistance profiling. S. aureus isolates were also genotyped using the spa typing and the multilocus sequence typing (MLST). Eight MRSA and 2 MR-CoNS isolates were additionally tested for SCCmec types. Resistance was common among isolates against ampicillin or penicillin (80.5%), kanamycin (68.3%), gentamicin (67.5%), tetracycline (43.9%) and ...Continue Reading

References

Aug 3, 2001·International Journal of Food Microbiology·M L De BuyserV Lafarge
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Jun 6, 2012·The Veterinary Clinics of North America. Food Animal Practice·Stephen P Oliver, Shelton E Murinda

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Citations

Dec 6, 2018·Frontiers in Microbiology·Wei SiXin Zhao
Aug 23, 2019·Foodborne Pathogens and Disease·Arne Schnitt, Bernd-Alois Tenhagen

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Methods Mentioned

BETA
PCR

Software Mentioned

Basic Local Alignment Search Tool ( BLAST )

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