Virulence and antimicrobial resistance genes profiles of spa type t605 methicillin-susceptible Staphylococcus aureus isolated from subclinical bovine mastitis
العنوان: | Virulence and antimicrobial resistance genes profiles of spa type t605 methicillin-susceptible Staphylococcus aureus isolated from subclinical bovine mastitis |
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المؤلفون: | Karen Vanessa Munive Nuñez, Anderson Clayton da Silva Abreu, Juliano Leonel Gonçalves, Marcos Veiga dos Santos, Liliana de Oliveira Rocha, Nathália Cristina Cirone Silva |
المصدر: | Journal of Applied Microbiology. 134 |
بيانات النشر: | Oxford University Press (OUP), 2023. |
سنة النشر: | 2023 |
مصطلحات موضوعية: | General Medicine, Applied Microbiology and Biotechnology, Biotechnology |
الوصف: | Aims Staphylococcus aureus is one of the most common pathogens associated with mastitis in dairy herds worldwide. This study evaluated the profile of virulence and antimicrobial resistance genes of spa type t605 methicillin-susceptible Staphylococcus aureus isolated from subclinical bovine mastitis in São Paulo, Brazil. Methods and results A total of 57 S. aureus strains were screened by conventional PCR (Polymerase Chain Reaction) for 49 virulence genes. The most prevalent virulence genes detected were icaD (94.7%), fib (93%), fnbA (82.5%), clfA (80.7%), bap (78.9%), clfB (73.7%), icaA (66.7%), see (64.9%), and sed (61.4%). The blaZ (94.7%), aac6’aph2’ (15.8%), and ant4 (12.3%) genes were the most common antimicrobial resistance genes; however, mecA and mecC genes were not found. All methicillin-susceptible S. aureus (MSSA) strains were characterized through spa and agr typing. The spa type t605 was found in all isolates. By agr typing, the most prevalent were type II (56.1%). Antimicrobial resistance was determined by the disk diffusion method, and 93% showed resistance to at least one antibiotic. Penicillin resistance was the most prevalent (87.7%), followed by tetracycline (12.3%), oxacillin (10.5%), and gentamicin (10.5%) resistance. Conclusion Our study confirmed the spa type t605 as endemic, carrying a wide variety of virulence factors and high-level penicillin resistance. The profile seems to be associated with the colonization of MSSA and its persistence in subclinical mastitis. |
تدمد: | 1365-2672 |
URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::d4d1dc671a3c160595c07ece34d71327 https://doi.org/10.1093/jambio/lxad057 |
حقوق: | EMBARGO |
رقم الأكسشن: | edsair.doi...........d4d1dc671a3c160595c07ece34d71327 |
قاعدة البيانات: | OpenAIRE |
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