inclusion criteria: * male and female residents of ltcfs at least 55 years of age. * willing and able to provide written informed consent and comply with the requirements of the protocol. * at least one symptomatic laboratory-confirmed covid-19 illness identified among residents or staff of the ltcf within 10 days prior to randomization.

inclusion criteria: * male and female residents of ltcfs at least 55 years of age. * willing and able to provide written informed consent and comply with the requirements of the protocol. * at least one symptomatic laboratory-confirmed covid-19 illness identified among residents or staff of the ltcf within 10 days prior to randomization.

inclusion criteria: - male and female residents of ltcfs at least 55 years of age. - willing and able to provide written informed consent and comply with the requirements of the protocol. - at least one symptomatic laboratory-confirmed covid-19 illness identified among residents or staff of the ltcf within 10 days prior to randomization.

inclusion criteria: - male and female residents of ltcfs at least 55 years of age. - willing and able to provide written informed consent and comply with the requirements of the protocol. - at least one symptomatic laboratory-confirmed covid-19 illness identified among residents or staff of the ltcf within 10 days prior to randomization.