ArticleBMC microbiology2024
Coagulase-negative staphylococci from bovine milk: Antibiogram profiles and virulent gene detection.
Article in BMC microbiology, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers, 1 of them a synthesis that pooled it.
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10 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Prevalence of methicillin-resistant coagulase-negative staphylococci in Africa: a systematic review and meta-analysis.BMC infectious diseases · 2025Pooled it
- Identification, antimicrobial resistance, and biofilm-forming capability of bacterial isolates from bovine mastitis in the high-altitude region of Shannan, Tibet.Archives of microbiology · 2026Article
- In Vitro Assessment of Selected Postbiotic Substances Against Methicillin-Resistant and Methicillin-SusceptibleAnimals : an open access journal from MDPI · 2026Article
- Mammaliicoccus sciuri as a sentinel for antimicrobial resistance and virulence: genomic epidemiology, transmission dynamics, and control in the one health era.Veterinary research communications · 2026Review
- Bioprotective Effect of a Bacteriocin-ProducingAntibiotics (Basel, Switzerland) · 2026Article
- Article
- Phylogenetic Footprints of Coagulase-Negative Staphylococci and Mammaliicoccus Isolated From Raw Caprine Milk.MicrobiologyOpen · 2025Article
- Genomic characterisation of nasal isolates of coagulase-negative Staphylococci from healthy medical students reveals novel Staphylococcal cassette chromosome mec elements.Scientific reports · 2025Article
- Article
- Prevalence and antimicrobial resistance of methicillin-resistant and methicillin-susceptibleTranslational animal science · 2025Article
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Abstract
backgroundCoagulase-negative Staphylococcus species are an emerging cause of intramammary infection, posing a significant economic and public health threat. The aim of this study was to assess the occurrence of coagulase-negative Staphylococcus species in bovine milk and dairy farms in Northwestern Ethiopia and to provide information about their antibiotic susceptibility and virulence gene profiles.
methodsThe cross-sectional study was conducted from February to August 2022. Coagulase-negative Staphylococcus species were isolated from 290 milk samples. Species isolation and identification were performed by plate culturing and biochemical tests and the antimicrobial susceptibility pattern of each isolate was determined by the Kirby-Bauer disc diffusion test. The single-plex PCR was used to detect the presence of virulent genes. The STATA software version 16 was used for data analysis. The prevalence, proportion of antimicrobial resistance and the number of virulent genes detected from coagulase-negative Staphylococcus species were analyzed using descriptive statistics.
resultsCoagulase-negative Staphylococcus species were isolated in 28.6%, (95% CI: 23.5-34.2) of the samples. Of these, the S. epidermidis, S. sciuri, S. warneri, S. haemolyticus, S. simulans, S. chromogens, S. cohnii, and S. captis species were isolated at the rates of 11, 5.2, 3.4, 3.1, 3.1, 1, 1, and 0.7% respectively. All the isolates showed a high percentage (100%) of resistance to Amoxicillin, Ampicillin, and Cefotetan and 37.5% of resistance to Oxacillin. The majority (54.2%) of coagulase-negative isolates also showed multidrug resistance. Coagulase-negative Staphylococcus species carried the icaD, pvl, mecA, hlb, sec, and hla virulent genes at the rates of 26.5%, 22.1%, 21.7%, 9.6%, 9.6% and 8.4% respectively.
conclusionThe present study revealed that the majority of the isolates (54.2%) were found multidrug-resistant and carriage of one or more virulent and enterotoxin genes responsible for intramammary and food poisoning infections. Thus, urgent disease control and prevention measures are warranted to reduce the deleterious impact of coagulase-negative species. To the best of our knowledge, this is the first study in Ethiopia to detect coagulase-negative Staphylococcus species with their associated virulent and food poisoning genes from bovine milk.
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