1. Household contacts who have symptoms compatible with SARS-CoV-2 infection definition or SARS-CoV-2 PCR showed a positive result. 2. Previous receiving favipiravir in 14 days 3. Contraindication of favipiravir treatment 4. Pregnancy in any trimester 5. Allergy to favipiravir 6. Moderate to severe liver disease

1. Household contacts who have symptoms compatible with SARS-CoV-2 infection definition or SARS-CoV-2 PCR showed a positive result. 2. Previous receiving favipiravir in 14 days 3. Contraindication of favipiravir treatment 4. Pregnancy in any trimester 5. Allergy to favipiravir 6. Moderate to severe liver disease