Scienziato in occhiali e maschera medica che tiene la provetta con scritte virili - Foto e immagini stock

Doctor or scientist holds in one hand laboratory test tube with blood and clean place for text or inscription of analysis or pathogen, and in second hand transparent vial with a vaccine or medicine

Doctor, medical professional or infectious disease specialist holds laboratory test tube with blood with inscription coronavirus and positive result indicated, other hand shows stop sign with his palm

Unrecognizable researcher working with potentially pathogenic substance

Scientists wearing masks and gloves Holding a syringe with a vaccine to prevent covid-19

Coronavirus COVID-19 medical test vaccine research and development concept. Scientist in laboratory study and analyze scientific sample of Coronavirus antibody to produce drug treatment for COVID-19.

Scientist with sample of covid-19 in laboratory

Hand in blue gloves holding a test tube after virus analysis with result markers in front of a lab room

Researcher or scientists loads liquid into blood sample in test tube. Researchers are developing vaccines and medicine to treat the COVID-19 virus.