Scientist with test tube inventing medicine for coronavirus. Man in protective mask stirring purple liquid with stick.
Scientist in protective gear discovering medicine. Researcher in mask stirring liquid in test tube. Green isolated background.
Scientist stirring purple water in a test tube. Researching and experimenting.
Scientist conducting research on medicine to fight coronavirus.
Scientist tries to discover medicine to cure coronovirus. Researcher pushing blood from syringe to a test tube and stirring it up to see reaction. Green background for keying.
Inventing and developing medicine to fight coronavirus. Medical scientist pushing blood from syringe to the test tube with blue liquid and stirring it up to observe a reaction.
Scientist looking at liquid in test tube
Biologist scientist putting solution liquid in test tube
vintage scientist adding a blue liquid to a test tube
Three scientists do chemical tests with multi-colored liquids in test tubes
Scientists discuss results of reaction of chemical liquids in test tubes
Preparation of medicine. Stock footage. Pharmaceutical production and testing of medicines with rotating test tubes with different liquids.