case fatality and rate text on wooden signpost outdoors in nature

039 2019ncov antiviral care case cause cdc consultation corona coronavirus covid19 cure curve dangerous desinfection diagnosis disease distancing doctor epidemic failure fatality fever flu flulike global health healthcare hospital hygiene illustrate increase incubation infection infectious medicine mortality multiorgan nature office organization outdoors pandemic patient period pneumonia prevention quarantine rate risk sarscov2 signpost signs social sputum statistic statistics symptoms testing text vaccination vaccine virus wooden world