Methicillin-resistant Staphylococcus spp. isolated from curd cheese "requeijao" and "especialidade lactea type requeijao" sold in Brazil

Autor(es)

Hachiya, Jamile de Oliveira ; Marques Rossi, Gabriel Augusto ; Ribeiro, Laryssa Freitas ; Sato, Rafael Akira ; Silva, Higor Oliveira ; Centola Vidal, Ana Maria ; do Amaral, Luiz Augusto

• Tipo de documento: Artigo Científico
• Fonte: Ciência Rural; v. 47, n. 7, p. 6-pg., 2017-01-01.

Resumo

This study focused on counting Staphylococcus spp. in curd cheeses "requeijao" and "especialidade lactea type requeijao" sold in Brazil, assessing the presence of mecA gene in obtained isolates and establishing antimicrobial resistance profile of the mecA gene positive isolates. To this, a set of 200 samples of these dairy products were evaluated. Low counts of Staphylococcus spp. were observed in these dairy products. All the isolates were determined as coagulase-negative strains using coagulase test and PCR. However, two isolates (3.70%) were carriers of mecA gene and they can be considered as risk for public health. These isolates presented resistance to penicillin, oxacillin and erythromycin. In conclusion, low counts of Staphylococcus were detected in curd cheese "requeijao" and "especialidade lactea type requeijao" sold in Brazil. However, coagulase-negative methicillin-resistant Staphylococcus spp. was detected in these dairy products. This is the first report of the detection of methicillin-resistant Staphylococcus spp. in heat-treated dairy products in Brazil. Results served as a warning to public sanitary authorities to control multidrug-resistant strains in veterinary and human medicine. (AU)

• Processo FAPESP: 14/21534-6 - Avaliação da presença de Bacillus cereus e da qualidade microbiológica de requeijão cremoso e especialidade láctea tradicional e light
• Beneficiário: Jamile de Oliveira Hachiya
• Modalidade de apoio: Bolsas no Brasil - Iniciação Científica