Commemorated on 3 plaques

Sir Alexander Fleming 1881-1955 discoverer of penicillin lived here

20a Danvers Street, London, United Kingdom where they lived

Sir Alexander Fleming 1881-1955 discovered penicillin in the second storey room above this plaque

St Mary's Hospital, Praed Street, W2, London, United Kingdom where they discovered penicillin

Alexander Fleming 1881-1955 biologist, pharmacologist and Nobel prize winner for the discovery of penicillin, appointed regional pathologist at Harefield Hospital in 1939

Harefield Hospital, Hill End Road, Harefield, London, United Kingdom where they worked (1939)