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Ambient Air Waste Sorting Facilities Could Be a Source of Antibiotic Resistant Bacteria

  • Calheiros, Ana (Escola Superior de Tecnologia e Gestao, Instituto Politecnico de Viana do Castelo, Rua Escola Industrial e Comercial de Nun'Alvares) ;
  • Santos, Joana (Escola Superior de Tecnologia e Gestao, Instituto Politecnico de Viana do Castelo, Rua Escola Industrial e Comercial de Nun'Alvares) ;
  • Ramos, Carla (Escola Superior de Tecnologia e Gestao, Instituto Politecnico de Viana do Castelo, Rua Escola Industrial e Comercial de Nun'Alvares) ;
  • Vasconcelos, Marta (CISAS, Escola Superior de Tecnologia e Gestao, Instituto Politecnico de Viana do Castelo, Rua Escola Industrial e Comercial de Nun'Alvares) ;
  • Fernandes, Paulo (Escola Superior de Tecnologia e Gestao, Instituto Politecnico de Viana do Castelo, Rua Escola Industrial e Comercial de Nun'Alvares)
  • 투고 : 2021.02.15
  • 심사 : 2021.04.08
  • 발행 : 2021.09.28

초록

The antimicrobial resistance of Staphylococcus spp. and Gram negative strains present in air samples from waste sorting facilities was assessed. Phenotypic studies have revealed a high percentage of strains of Staphylococcus spp. resistant to methicillin. Genotypically and by RT-PCR, it was found that the mecA gene usually associated with methicillin resistance was present in 8% of the Staphylococcus strains isolated. About 30% of the Gram negative strains from the same samples also displayed resistance to meropenem and 79% of these were resistant to multiple antibiotics from different classes, namely cephalosporins and β-lactams. The results suggest that in professional activities with high levels of exposure to biological agents, the quantification and identification of the microbial flora in the work environment, with the determination of the presence of potential agents displaying multi-resistances is of relevance to the risk assessment. The personal protection of workers is particularly important relevance in these cases, since many of the strains that exhibit multi-resistance are potential opportunistic agents.

키워드

과제정보

Part of the work here presented had the financial support of the Portuguese Working Conditions Authority (Autoridade para as Condicoes de Trabalho-ACT), project 51APJ-08.

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