astronaut floating in space and wear protective masks to protect corona virus.

alert astronaut background biohazard blood blue care china chinese concept contagious contamination corona coronavirus cough cure dangerous diagnosis disease doctor earth elements epidemic fever floating flu furnished health healthcare hospital human illness image infected infection laboratory mask masks medical medicine microbiology nasa outbreak pandemic patient planet pneumonia protect protection protective quarantine respiratory risk sars science sick sickness space symptom this treatment vaccine viral virology virus warning wear wuhan