Search Results: Microbiology

The germ theory, which emerged in the late 19th century, demonstrated that microscopic germs caused most human infectious diseases. The germs involved included bacteria, viruses, fungi, protozoa, and prions. Louis Pasteur (1822-1895), a French...

The age of antibiotics began in September 1928, with the discovery of penicillin by Alexander Fleming (1881-1955), then a professor of bacteriology at St. Mary's Hospital in London. Previously there were no effective treatments against a...

Alexander Fleming was a Scottish doctor and microbiologist who discovered the world’s first effective antibiotic: penicillin. This discovery revolutionized medicine, and has been described as the single greatest victory ever achieved over...