abstract virus strain model novel coronavirus 2019-ncov with text covid-19 outbreak on red background. pneumonia pandemic

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