medical scientist in hazmat suits cleaning and disinfecting coronavirus epidemic mers-cov. concept wuhan 2019-ncov pandemic

2019 asia biohazard cdc chemical china cleaning corona coronavirus danger disinfect disinfection doctor ebola epidemic epidemiology equipment flu gas health immunity infect infection influenza italy mask medic medical medicine milan ncov northern pandemic pathogen people pneumonia protection quarantine respirator respiratory rome safety special suit treatment uniform vector venice virus warning wuhan