Antimicrobial susceptibility profiles of Staphylococcus spp. contaminating raw goat milk
| Autor: | Celso José Bruno de Oliveira, Patrícia Emília Naves Givisiez, Núbia Michelle Vieira da Silva, Mauro M.S. Saraiva, P.F.C. Vasconcelos, Abimael E Silva Júnior, Lauro Santos Filho |
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| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
0301 basic medicine
Veterinary medicine dairy goats Staphylococcus 030106 microbiology Biology medicine.disease_cause SF1-1100 03 medical and health sciences Antibiotic resistance Ampicillin SF600-1100 medicine antimicrobial resistance General Veterinary Broth microdilution Antimicrobial Animal culture Penicillin food safety 030104 developmental biology Staphylococcus aureus Drug of last resort medicine.drug Research Article |
| Zdroj: | Veterinary World Veterinary World, Vol 14, Iss 5, Pp 1074-1079 (2021) |
| ISSN: | 2231-0916 0972-8988 |
| Popis: | Background and Aim: Antimicrobial resistance poses a major threat to global public health. Foodstuff of animal origin can serve as potential vehicles for the dissemination of antimicrobial-resistant bacteria and resistance genes to consumers. In view of the lack of knowledge about antimicrobial resistance in bacteria associated with goat milk, the aim of this study was to report species-level identification and antimicrobial susceptibility profiles of a large collection of Staphylococcus spp. isolates recovered from raw goat milk in Brazil. Materials and Methods: A total of 434 Staphylococcus spp. isolates originated from 510 goat milk samples in Northeast Brazil were investigated. The isolates were obtained by conventional microbiological methods. Species identification and antimicrobial susceptibility testing were performed by means of a semi-automated system using a panel for biochemical tests and broth microdilution method for 19 antimicrobial drugs. Results: Although Staphylococcus aureus (22.6%) accounted for the majority of the isolates, a total of 13 different non-aureus staphylococci spp. were identified. High resistance rates against erythromycin (40.8%), and the beta-lactams ampicillin (45.9%) and penicillin (42.9%) were observed among S. aureus isolates. The most significant findings were related to the resistance against quinupristin-dalfopristin, a drug of last resort used in human medicine to treat infections caused by vancomycin-resistant S. aureus and enterococci. Conclusion: The high diversity of Staphylococcus spp. showing phenotypic resistance against different antimicrobial drugs encourages further investigations on the real impact of these bacteria as reservoirs of antimicrobial resistance genes to consumers. Furthermore, the potential impact of technological processes, such as pasteurization, fermentation, and maturation, on the maintenance and dissemination of antimicrobial resistance among the microbial populations in milk and dairy products must also be investigated. |
| Databáze: | OpenAIRE |
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