testing for antibodies. a blood test to determine the coronavirus. girl with red nails is about to prick her finger. blood testing

about analysis antibodies background blood blue care closeup contamination coronavirus cotton covid determine diagnosis diagnostic disease doctor epidemic equipment finger flu for girl hand health her infection infectious kit lab laboratory medical medicine nails nasal nasopharyngeal ncov oropharyngeal outbreak pandemic pcr people pneumonia positive ppe prick quarantine red research respiratory sample sars science self-diagnosis swab test testing treatment tube virus