Who was Alexander Flemings friends?

Alexander Fleming, the Scottish bacteriologist best known for discovering penicillin, had several notable friends and colleagues in the scientific community. Among them were Howard Florey and Ernst Boris Chain, who collaborated with Fleming to develop penicillin into a usable drug. He also maintained friendships with prominent figures like J.B.S. Haldane and other scientists of his era, fostering a network of collaboration and innovation in microbiology and medicine.