Sir Alexander Fleming was a Scottish biologist, pharmacologist and bactriologist. He was born in August in 1881.
Fleming shared the Nobel Prize for his discovery of the enzyme lysozyme in 1922. This discovery was made by accident when a mold that had contaminated an experiment turned out to contain a powerful antibiotic which was eventually named penicillin.
The actual isolation of the antibiotic substance penicillin from the fungus Penicillium notatum ocurred in 1928.
During his life, Fleming published many articles on bacteriology, immunology, and chemotherapy. Alexander Fleming died March 11, 1955.