man in bio hazard protective suit with respirator mask. novel coronavirus - 2019-ncov, wuhan virus concept

2019ncov bio biohazard chemical chemistry china clinical concept contamination corona coronavirus danger deadly disease ebola epidemic fever flu hazard hazmat health illness infect infected infection man mask medicine ncov ncp novel outbreak package pandemic pathogen pneumonia pollution post prevention protection protective quarantine radiation respirator respiratory risk sick suit syndrome toxic vaccine viral virus warning world wuhan