finger puncture to diagnose coronavirus. girl with red manicure makes herself an analysis on her own. finger puncture for blood

analysis antibody antigen blood care cell convalescent corona coronavirus covid diabetes diagnose diagnosis diagnostic disease doctor epidemiologist finger for girl gloves hand health healthcare her herself holding hospital infection kit lab laboratory lancet makes manicure medical needle negative organization own pandemic patient pipette plasma point positive prick pricks puncture quick rapid red research result sample sampling sarscov scientist specimen sterile strep swab technician test vaccine virus world