Infection prevention in practice · 2024
Bacterial burden and drug-resistant bacteria in healthcare workers' mobile phones: a study in Puerto Rican outpatient clinics.
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Scharbaai-Vázquez R, García-Aponte A N, Huertas-Ayala C, Martínez-Monegro E Y, Guadalupe-Ríos G M, Díaz-Portorreal J, González-Torres M I, Fernández N M
Аннотация
BACKGROUND: Mobile phones used by healthcare workers (HCWs) in hospitals are significant reservoirs of drug-resistant bacteria responsible for hospital-acquired infections (HAIs).
AIM: The objective of this study was to assess the level of contamination with such bacteria in outpatient clinics.
METHODS: Swabs from 83 HCWs' mobile phones were processed using standard biochemical and enzymatic procedures to identify pathogenic bacteria. β-Lactamase tests, antimicrobial susceptibility tests, screening for extended-spectrum β-lactamase (ESBL), and carbapenemase production were performed according to CLSI guidelines. Molecular detection of multi-drug-resistant genes (mecA in Staphylococcus aureus and kpc/ndm carbapenemases in Klebsiella pneumoniae and Acinetobacter spp.) was performed using multiplex real-time polymerase chain reaction.
FINDINGS: The overall prevalence of mobile phone contamination with one or more bacteria was 100%. A total of 51 Gram-positive and 44 Gram-negative isolates, including 20 coagulase-negative staphylococci (CoNS), 20 S. aureus (0 meticillin-resistant S. aureus), 11 Acinetobacter spp. and 10 K. pneumoniae were isolated. β-Lactamase production was detected in 45% of CoNS and 30% of S. aureus. Panton-Valentine Leukocidin (PVL) toxin gene in S. aureus was found in 20% (4/20) of the isolates. Twenty (20%) and 13% of the Acinetobacter spp. and K. pneumoniae isolates, respectively, were ESBL but not carbapenemase producers.
CONCLUSIONS: The presence of HAI-causing organisms on mobile phones used by HCWs in outpatient clinics necessitates the implementation of infection control measures to mitigate the risk of cross-contamination in critical healthcare settings.
AIM: The objective of this study was to assess the level of contamination with such bacteria in outpatient clinics.
METHODS: Swabs from 83 HCWs' mobile phones were processed using standard biochemical and enzymatic procedures to identify pathogenic bacteria. β-Lactamase tests, antimicrobial susceptibility tests, screening for extended-spectrum β-lactamase (ESBL), and carbapenemase production were performed according to CLSI guidelines. Molecular detection of multi-drug-resistant genes (mecA in Staphylococcus aureus and kpc/ndm carbapenemases in Klebsiella pneumoniae and Acinetobacter spp.) was performed using multiplex real-time polymerase chain reaction.
FINDINGS: The overall prevalence of mobile phone contamination with one or more bacteria was 100%. A total of 51 Gram-positive and 44 Gram-negative isolates, including 20 coagulase-negative staphylococci (CoNS), 20 S. aureus (0 meticillin-resistant S. aureus), 11 Acinetobacter spp. and 10 K. pneumoniae were isolated. β-Lactamase production was detected in 45% of CoNS and 30% of S. aureus. Panton-Valentine Leukocidin (PVL) toxin gene in S. aureus was found in 20% (4/20) of the isolates. Twenty (20%) and 13% of the Acinetobacter spp. and K. pneumoniae isolates, respectively, were ESBL but not carbapenemase producers.
CONCLUSIONS: The presence of HAI-causing organisms on mobile phones used by HCWs in outpatient clinics necessitates the implementation of infection control measures to mitigate the risk of cross-contamination in critical healthcare settings.