What award did the United States give Alexander Fleming in 1947?

The United States gave Alexander Fleming the Medal for Merit in 1947. It was a major American civilian decoration created during World War II to recognize exceptionally meritorious service supporting the Allied war effort.

Fleming received the award because his discovery of penicillin had enormous importance for treating bacterial infections, including infections suffered by wartime soldiers. The discovery began in 1928, when Fleming noticed that a Penicillium mould had destroyed nearby colonies of staphylococci in a laboratory culture plate.

The Medal for Merit was distinct from later American honors such as the National Medal of Science and the Presidential Medal of Freedom. It was awarded to civilians, including distinguished foreign nationals, and ranked among the highest U.S. honors available at the time. Fleming also shared the 1945 Nobel Prize in Physiology or Medicine with Howard Florey and Ernst Chain, whose work helped turn penicillin from a laboratory observation into a usable medicine.

A common mix-up is confusing Fleming’s 1947 American decoration with the Royal Society of Medicine’s Gold Medal, which he also received in 1947.