scientist holding micro centrifuge tubes for testing anti-biotic in beef or meats by using test kit sample culture in purple.

agar analysis antibiotic antivirus background beef biochemical biochemistry biotechnology blood blue care centrifuge chemical chemistry clinic clinical coronavirus covid culture detecting diagnosis discovery disease doctor drug equipment experiment genetic glove gloves health holding infection instrument investigation kit lab laboratory liquid meats medical medicine micro microbiology pipette professional protective purple rack research researcher sample science scientist sterile technician technology test testing tube tubes using vaccination violet virus