Alexander Fleming

Alexander Fleming was a Scottish biologist and pharmacologist best known for discovering penicillin in 1928. This antibiotic, derived from mold, revolutionized medicine by effectively treating bacterial infections. Fleming's observation of how the mold killed surrounding bacteria marked a significant advancement in microbiology and pharmacology. His work led to the development of antibiotics, saving countless lives and shaping modern medicine. Fleming received the Nobel Prize in Physiology or Medicine in 1945, alongside Howard Florey and Ernst Boris Chain, who helped develop penicillin for widespread use. His contributions continue to impact healthcare and our understanding of infectious diseases today.