* exclusion criteria for ltchs: 1. inability to deliver medication to consenting residents within 96 hours of identification of the outbreak. 2. inability to define a physically separate unit with ≤32 residents. 3. any of facility management, medical advisory committee or resident council do not approve participation. * exclusion criteria for ltch residents and staff: 1. pregnancy (females \< 55 years of age require a negative urine pregnancy test at enrollment, and either menopause or two concurrent reliable methods of contraception need to be confirmed) 2. history of abnormalities of uric acid metabolism, other than gout. 3. history of hypersensitivity to remdesivir or favipiravir 4. previous diagnosis of hepatic cirrhosis 5. current use of the following medications, which cannot be discontinued for the duration of the study: pyrazinamide, hydralazine, more than 3000 mg of acetaminophen per day

* exclusion criteria for ltchs: 1. inability to deliver medication to consenting residents within 96 hours of identification of the outbreak. 2. inability to define a physically separate unit with ≤32 residents. 3. any of facility management, medical advisory committee or resident council do not approve participation. * exclusion criteria for ltch residents and staff: 1. pregnancy (females \< 55 years of age require a negative urine pregnancy test at enrollment, and either menopause or two concurrent reliable methods of contraception need to be confirmed) 2. history of abnormalities of uric acid metabolism, other than gout. 3. history of hypersensitivity to remdesivir or favipiravir 4. previous diagnosis of hepatic cirrhosis 5. current use of the following medications, which cannot be discontinued for the duration of the study: pyrazinamide, hydralazine, more than 3000 mg of acetaminophen per day

exclusion criteria for ltchs: inability to deliver medication to consenting residents within 96 hours of identification of the outbreak. inability to define a physically separate unit with ≤32 residents. any of facility management, medical advisory committee or resident council do not approve participation. exclusion criteria for ltch residents and staff: pregnancy (females < 55 years of age require a negative urine pregnancy test at enrollment, and either menopause or two concurrent reliable methods of contraception need to be confirmed) history of abnormalities of uric acid metabolism, other than gout. history of hypersensitivity to remdesivir or favipiravir previous diagnosis of hepatic cirrhosis current use of the following medications, which cannot be discontinued for the duration of the study: pyrazinamide, hydralazine, more than 3000 mg of acetaminophen per day

exclusion criteria for ltchs: inability to deliver medication to consenting residents within 96 hours of identification of the outbreak. inability to define a physically separate unit with ≤32 residents. any of facility management, medical advisory committee or resident council do not approve participation. exclusion criteria for ltch residents and staff: pregnancy (females < 55 years of age require a negative urine pregnancy test at enrollment, and either menopause or two concurrent reliable methods of contraception need to be confirmed) history of abnormalities of uric acid metabolism, other than gout. history of hypersensitivity to remdesivir or favipiravir previous diagnosis of hepatic cirrhosis current use of the following medications, which cannot be discontinued for the duration of the study: pyrazinamide, hydralazine, more than 3000 mg of acetaminophen per day

- exclusion criteria for ltchs: 1. inability to deliver medication to consenting residents within 96 hours of identification of the outbreak. 2. inability to define a physically separate unit with ≤32 residents. 3. any of facility management, medical advisory committee or resident council do not approve participation. - exclusion criteria for ltch residents and staff: 1. pregnancy (females < 55 years of age require a negative urine pregnancy test at enrollment, and either menopause or two concurrent reliable methods of contraception need to be confirmed) 2. history of abnormalities of uric acid metabolism, other than gout. 3. history of hypersensitivity to remdesivir or favipiravir 4. previous diagnosis of hepatic cirrhosis 5. current use of the following medications, which cannot be discontinued for the duration of the study: pyrazinamide, hydralazine, more than 3000 mg of acetaminophen per day

- exclusion criteria for ltchs: 1. inability to deliver medication to consenting residents within 96 hours of identification of the outbreak. 2. inability to define a physically separate unit with ≤32 residents. 3. any of facility management, medical advisory committee or resident council do not approve participation. - exclusion criteria for ltch residents and staff: 1. pregnancy (females < 55 years of age require a negative urine pregnancy test at enrollment, and either menopause or two concurrent reliable methods of contraception need to be confirmed) 2. history of abnormalities of uric acid metabolism, other than gout. 3. history of hypersensitivity to remdesivir or favipiravir 4. previous diagnosis of hepatic cirrhosis 5. current use of the following medications, which cannot be discontinued for the duration of the study: pyrazinamide, hydralazine, more than 3000 mg of acetaminophen per day