social distancing concept man and woman standing away to prevent covid-19 coronavrius

2019 antiviral avoid away background caution concept contamination control corona coronavirus coronavrius covid covid19 danger disease distance distancing down epidemic fever flu human icon illness illustration immunization infect infected infection influenza isolation lock man mask medicine microbes microorganism ncov outbreak pandemic people person pneumonia prevent preventive protection quarantine rotavirus sign social standing stop symbol virology virus wall woman