Methicillin-resistant Staphylococcus spp. in the nasal cavity of dental surgeon’s professors
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2019
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The aim of the study is to investigate the methicillin-resistant Staphylococcus spp. nasal colonization
among dental surgeon professors. Dental surgeon professors of a Higher Education Institution (HEI)
responded to a questionnaire covering sociodemographic, employment and behavioral data, and were
subjected to clinical specimen collection by nasal swab. Identification and susceptibility testing of
bacteria were performed by automated method (Vitek 2 compactTM). Susceptibility to mupirocin was
tested by disk-diffusion method. The detection of mecA and lukS-F genes was performed by PCR. The
genetic similarity among the isolates was determined by Pulsed Field Gel Electrophoresis. Four (9.7%)
dental surgeon professors were colonized by methicillin-resistant Staphylococcus spp. and claim have
provided care to patients without wearing surgical masks (1/4) and/or gloves (4/4), and had the habit of
keeping surgical masks on the chin (1/4). Two S. aureus and one S. epidermidis isolates were mecA
gene positives. MLSB complex (inducible), mupirocin and sulfamethoxazole/trimethoprim resistance
were also detected. The lukS-F gene was not detected in any S. aureus and no genetic similarity was
found among the isolates. Dental surgeon professors were found to be colonized with methicillin resistant Staphylococcus spp. and declared noncompliance to infection control practices, posing risk
of infection to themselves, patients, students and their families.
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Occupational dentistry, Antimicrobials/antimicrobial resistance, Dental education, Infection control, Bacteria, infectious disease(s)
Citação
ALVARENGA, Camila Fonseca et al. Methicillin-resistant Staphylococcus spp. in the nasal cavity of dental surgeons professors. African Journal of Microbiology Research, [s. l.], v. 13, n. 25, p. 392-399, 2019. DOI: 10.5897/AJMR2019.9152. Disponível em: https://academicjournals.org/journal/AJMR/article-abstract/59A986F61505. Acesso em: 4 jul. 2025.