Alliance for Pandemic Preparedness

September 17, 2020

Case-Control Study of Use of Personal Protective Measures and Risk for Severe Acute Respiratory Syndrome Coronavirus 2 Infection, Thailand. Emerging Infectious Diseases

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  • Wearing a facemask at all times when in contact with someone with COVID-19 was associated with a significantly lower risk of SARS-CoV-2 infection (aOR=0.23) among close contacts of people with COVID-19 in Thailand. The case-control study (211 cases and 839 controls) also found that maintaining physical distance (aOR=0.15), shorter duration of contact (aOR=0.24), and handwashing (aOR=0.33) were also independently associated with lower risk of infection.

Doung-ngern et al. (Sept 14, 2020). Case-Control Study of Use of Personal Protective Measures and Risk for Severe Acute Respiratory Syndrome Coronavirus 2 Infection, Thailand. Emerging Infectious Diseases. https://doi.org/10.3201/eid2611.203003