microbiologist with atube of biological sample contaminated by coronavirus with label covid-19,sample of covid-19 infectious disea

2019ncov analysis analyzing atube bacterial biochemical biological care china contagious contaminated corona coronavirus cov cover covid19 covid19sample diagnostic disea diseapositive disease distancing doctor epidemic flu fluid health home hospital illness infection infectious lab label laboratory medical medicine microbiologist microbiology microscope nagative new patient people positive pulmonary research respiratory resultstay sample serological sickness socail test tube vaccination virology virus