doctor and microbiologist with vacuum tubes for samples with covid 19 infection atypical pneumonia virus in laboratory

accination alert analysis analyzing atypical biochemist biochemistry biohazard biology biotechnology bottle chemical chemist chemistry clinical coronavirus covid covid19 death development doctor education equipment experiment glass health infection instrument lab laboratory life medical medicine mers microbiologist microbiology microscope ncov oncology pharmaceutical pneumonia positive research samples science scientific scientist selective sick study technician technology test testtube treatment tube tubes vacuum virus