Methicillin-resistant Staphylococcus sp. colonizing health care workers of a cancer hospital

• Autor(a) principal: Costa,Dayane de Melo
• Data de Publicação: 2014
• Outros Autores: Kipnis,André, Leão-Vasconcelos,Lara Stefânia Netto de Oliveira, Rocha-Vilefort,Larissa Oliveira, Telles,Sheila Araújo, André,Maria Cláudia Dantas Porfírio Borges, Tipple,Anaclara Ferreira Veiga, Lima,Ana Beatriz Mori, Ribeiro,Nádia Ferreira Gonçalves, Pereira,Mayara Regina, Prado-Palos,Marinésia Aparecida
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Brazilian Journal of Microbiology
• Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822014000300006
• topic: health personnel; occupational health; Staphylococcus; methicillin resistance; oncology service; hospital

The aim of the study was to analyze epidemiological and microbiological aspects of oral colonization by methicillin-resistant Staphylococcus of health care workers in a cancer hospital. Interview and saliva sampling were performed with 149 health care workers. Antimicrobial resistance was determined by disk diffusion and minimum inhibitory concentration. Polymerase Chain Reaction, Internal Transcribed Spacer-Polymerase Chain Reaction and Pulsed Field Gel Electrophoresis were performed for genotypic characterization of methicillin-resistant Staphylococcus. Risk factors were determined by logistic regression. Methicillin-resistant Staphylococcus colonization prevalence was 19.5%, denture wearing (p = 0.03), habit of nail biting (p = 0.04) and preparation and administration of antimicrobial (p = 0.04) were risk factors identified. All methicillin-resistant Staphylococcus were S. epidermidis, 94.4% of them had mecA gene. Closely related and indistinguishable methicillin-resistant S. epidermidis were detected. These results highlight that HCWs which have contact with patient at high risk for developing infections were identified as colonized by MRSE in the oral cavity, reinforcing this cavity as a reservoir of these bacteria and the risk to themselves and patients safety, because these microorganisms may be spread by coughing and talking.