Estimating Mycobacterium tuberculosis transmission in a South African clinic: Spatiotemporal model based on person movements
Fig 6
Impact of infection control measures.
Mean risk of infection per clinic attendee (median visit time 25 min, IQR 13 min–46 min): (a) with mask use (community or surgical masks) and high ventilation as observed during the COVID-19 pandemic, (b) without mask use and high ventilation, (c) with mask use and normal ventilation as observed before the COVID-19 pandemic (d) without mask use and normal ventilation. Low risk: < 0.1%, Medium: 0.1–1%, High: > 1% risk of infection.