Assessing the behavior of food handlers wearing face masks and the passage of bacteria through disposable masks
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View abstract on PubMed
Summary
This summary is machine-generated.Food handlers wearing masks can contaminate food if they touch their masks. Microorganisms transfer from inner mask layers to outer surfaces, posing a cross-contamination risk during food preparation.
Area Of Science
- Food Safety
- Microbiology
- Public Health
Background
- Masks are used in food preparation to prevent direct contamination from handlers' respiratory tracts.
- Touching masks during food handling can lead to indirect contamination of food.
Purpose Of The Study
- To evaluate food handler behavior regarding mask usage.
- To identify microorganisms on food handler masks.
- To assess the potential for microbial transfer through mask layers.
Main Methods
- Observation of 31 food handlers' mask-touching behavior in a kitchen setting.
- Microbiological analysis and MALDI-TOF mass spectrometry to identify mask surface microorganisms.
- Volunteer studies to assess microbial passage through mask layers and hand contamination.
Main Results
- 77.4% of food handlers touched their masks hourly.
- 14 bacterial species, including Staphylococcus and Bacillus, were identified on masks.
- Masks became contaminated externally after use, and sterile gloves picked up bacteria from mask surfaces, indicating transfer.
Conclusions
- Disposable masks can become vectors for food cross-contamination if handlers touch their outer surfaces.
- Microorganisms can penetrate mask layers, necessitating strict avoidance of mask touching.
- Proper hand hygiene after accidental mask contact is crucial to prevent food contamination.
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