abstract virus strain model novel coronavirus disease covid-19 2019-ncov with woman and man in suit with blue medical face mask

2019ncov attention bacteria banner biohazard careful caution china chinese concept contagion contamination control corona coronavirus corornavirus covid covid19 danger deadly detected disease epidemic flag flu global hazard infected infection information italian italy medical medicine mers novel outbreak pandemic pathogen pneumonia prohibition protection quarantine respiratory risk sars stop strain syndrome text vaccine virus world wuhan