ArticleJournal of clinical microbiology2012
Prevalence and characterization of Staphylococcus aureus, including methicillin-resistant Staphylococcus aureus, isolated from bulk tank milk from Minnesota dairy farms.
Article in Journal of clinical microbiology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 82 papers.
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Who cites it
82 citing papers in PubMed.
- Qualitative assessment of virulence and resistance gene transcripts in Staphylococcus aureus isolated from buffalo milk and dairy products.Brazilian journal of microbiology : [publication of the Brazilian Society for Microbiology] · 2026Article
- Genomic Evidence Supporting a One Health Perspective onAntibiotics (Basel, Switzerland) · 2026Article
- Biofilm production and virulence traits among extensively drug-resistant and methicillin-resistant Staphylococcus aureus from buffalo subclinical mastitis in Bangladesh.Scientific reports · 2025Article
- Prevalence, characterization and antibiogram of Staphylococcus aureus isolates from bovine and swine population in Bareilly, Uttar Pradesh, India.Scientific reports · 2025Article
- Comprehensive Molecular and Epidemiological Characterization ofPathogens (Basel, Switzerland) · 2025Article
- Prevalence and Diversity ofAnimals : an open access journal from MDPI · 2025Article
- Prevalence and Characterization ofFoods (Basel, Switzerland) · 2025Article
- Phylogenomic associations among methicillin-resistantMicrobiology spectrum · 2025Article
- Prevalence of Methicillin-ResistantTransboundary and emerging diseases · 2025Article
- Occurrence and diagnostic of intermittent shedding ofFrontiers in veterinary science · 2025Review
- Article
- Isolation and Characterization ofIndian journal of microbiology · 2024Article
- Isolation and antimicrobial resistance patterns of Methicillin-resistantFood science & nutrition · 2024Article
- Methicillin-ResistantAntibiotics (Basel, Switzerland) · 2024Review
- An observational study demonstrates human-adapted Staphylococcus aureus strains have a higher frequency of antibiotic resistance compared to cattle-adapted strains isolated from dairy farms making farmstead cheese.BMC veterinary research · 2024Observational
- Milk supply chain as a reservoir of antimicrobial-resistantJournal of biosciences · 2024Article
- Occurrence of Methicillin-ResistantVeterinary medicine (Auckland, N.Z.) · 2024Article
- Apparent prevalence and selected risk factors of methicillin-resistantJDS communications · 2023Article
- Genomic Insights into Methicillin-Resistant Staphylococci and Mammaliicocci from Bulk Tank Milk of Dairy Farms in Serbia.Antibiotics (Basel, Switzerland) · 2023Article
- The Characterization and Beta-Lactam Resistance of Staphylococcal Community Recovered from Raw Bovine Milk.Antibiotics (Basel, Switzerland) · 2023Article
22 more citing papers are in PubMed but not listed here.
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6 authors.
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No grant is acknowledged in the PubMed record.
Abstract
Staphylococcus aureus is a common causative agent of bovine mastitis in dairy herds. The emergence of methicillin-resistant Staphylococcus aureus (MRSA) in hospitals as well as the community is a significant and costly public health concern. S. aureus-related bovine mastitis is a common reason for therapeutic and/or prophylactic use of antibiotics on dairy farms. In this study, herd prevalence of S. aureus, including MRSA, was estimated from bulk tank milk (BTM) from Minnesota farms. A total of 150 pooled BTM samples from 50 farms, collected over 3 seasons (spring, summer, and fall of 2009), were assessed. Herd prevalence of methicillin-susceptible S. aureus (MSSA) was 84%, while MRSA herd prevalence was 4%. A total of 93 MSSA isolates and 2 MRSA isolates were recovered from 150 BTM samples. Antibiotic susceptibility testing of S. aureus isolates showed pansusceptibility in 54 isolates, resistance to a single antibiotic class in 21 isolates, resistance to two antibiotic classes in 13 isolates, and resistance to ≥3 antibiotics classes and thus multidrug resistance in 5 isolates. The two MRSA isolates displayed resistance to β-lactams, cephalosporins, and lincosamides and were multiresistant. Staphylococcal protein A gene (spa) typing identified spa types t529 and t034 most frequently among methicillin-susceptible isolates, while t121 was observed in MRSA isolates. Seven isolates, including the two MRSA isolates, produced staphylococcal enterotoxins B, C, D, and E on overnight culture. MRSA isolates were further genotyped using multilocus sequence typing (MLST) and pulsed-field gel electrophoresis (PFGE). Of the 2 MRSA isolates, one had a composite genotype profile of MLST ST 5-PFGE USA100-unknown spa type, which has been reported among hospital-associated MRSA isolates, while the second isolate carried the MLST ST 8-PFGE USA300-spa type t121 genotype, commonly identified among community-associated MRSA isolates. These results suggest that MRSA genotypes associated with hospitals and community can be isolated from milk at very low rates.
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