sir alexander fleming explaining the benefits of using penicillin to kill bacteria compared to using carbolic acid which also destroys healthy blood... - bacterium stock videos & royalty-free footage
{"Image ImageDescription": "Sir Alexander Fleming explaining the benefits of using penicillin to kill bacteria compared to using carbolic acid which also destroys healthy blood cells; 1955 (LCA503P - AEVZ001J)", "Image Copyright": "BBC"}