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Genomic characterization, antimicrobial resistance profiles, enterotoxin, and biofilm production of methicillin-resistant Staphylococcus aureus isolated from clinical and animal products origins in Eastern Turkey / Caracterização genômica perfis de resistência antimicrobiana, produção de enterotoxinas e biofilme Staphylococcus aureus resistente à meticilina isolado de origem clínica e de produtos de origem animal no leste da Turquia
Baran, Alper; Oz, Cihan; Cengiz, Seyda; Adiguzel, Mehmet C.
  • Baran, Alper; Ataturk University. Technical Vocational School. Department of Food Quality Control and Analysis. Erzurum. TR
  • Oz, Cihan; Ataturk University. Faculty of Veterinary Medicine. Department of Microbiology. Erzurum. TR
  • Cengiz, Seyda; Ataturk University. Faculty of Veterinary Medicine. Department of Microbiology. Erzurum. TR
  • Adiguzel, Mehmet C; Ataturk University. Faculty of Veterinary Medicine. Department of Microbiology. Erzurum. TR
Pesqui. vet. bras ; 42: e06991, 2022. tab, ilus
Article in English | LILACS, VETINDEX | ID: biblio-1365241
ABSTRACT
Staphylococcus aureus is an opportunistic and ubiquitous pathogen found in the skin, nares, and mucosal membranes of mammals. Increasing resistance to antimicrobials including methicillin has become an important public concern. One hundred and eight (108) S. aureus strains isolated from a total of 572 clinical and animal products samples, were investigated for their biofilm capability, methicillin resistance, enterotoxin genes, and genetic diversity. Although only one strain isolated from raw retail was found as a strong biofilm producer, the percentage of antimicrobial resistance pattern was relatively higher. 17.59% of S. aureus strains tested in this study were resistant to cefoxitin and identified as methicillin-resistant S. aureus (MRSA) isolates. mecA and mecC harboring S. aureus strains were detected at a rate of 2.79% and 0.93%, respectively. In addition, staphylococcal enterotoxin genes including Sea, Seb, Sec, and Sed genes were found to be 18.5%, 32.4%, 6.5% and 3.7%, respectively. The phylogenetic relationship among the isolates showed relationship between joint calf and cow milk isolates. Multi locus sequence typing (MLST) revealed three different sequence types (STs) including ST84, ST829, and ST6238. These findings highlight the development and spread of MRSA strains with zoonotic potential in animals and the food chain throughout the world.
RESUMO
Staphylococcus aureus é um patógeno dúctil e ubíquo encontrado na pele, narinas e membranas mucosas de mamíferos. O aumento da resistência aos antimicrobianos, incluindo a meticilina, tornou-se uma importante preocupação pública. Cento e oito (108) cepas de S. aureus isoladas de um total de 572 amostras clínicas e de produtos animais foram investigadas por sua capacidade de biofilme, resistência à meticilina, genes de enterotoxinas e diversidade genética. Embora apenas uma cepa isolada do cru tenha sido encontrada como forte produtora de biofilme, a porcentagem do padrão de resistência antimicrobiana foi relativamente maior. Parte das cepas (17,59%) de S. aureus testadas neste estudo eram resistentes à cefoxitina e identificadas como isolados de MRSA. mecA e mecC abrigando cepas de S. aureus foram detectados a uma taxa de 2,79% e 0,93%, respectivamente. Além disso, verificou-se que os genes da enterotoxina estafilocócica, incluindo os genes Sea, Seb, Sec e Sed, eram 18,5%, 32,4%, 6,5% e 3,7%, respectivamente. A relação filogenética entre os isolados mostrou relação entre os isolados de bezerro e leite de vaca. A tipagem de sequência multiloco (MLST) revelou três tipos de sequência diferentes (STs), incluindo ST84, ST829 e ST6238. Essas descobertas destacam o desenvolvimento e a disseminação de cepas de MRSA com potencial zoonótico em animais e na cadeia alimentar em todo o mundo.

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Full text: Available Index: LILACS (Americas) Main subject: Staphylococcal Food Poisoning / Turkey / Methicillin-Resistant Staphylococcus aureus Type of study: Prognostic study Limits: Animals Country/Region as subject: Asia Language: English Journal: Pesqui. vet. bras Year: 2022 Type: Article Institution/Affiliation country: Ataturk University/TR

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Full text: Available Index: LILACS (Americas) Main subject: Staphylococcal Food Poisoning / Turkey / Methicillin-Resistant Staphylococcus aureus Type of study: Prognostic study Limits: Animals Country/Region as subject: Asia Language: English Journal: Pesqui. vet. bras Year: 2022 Type: Article Institution/Affiliation country: Ataturk University/TR