Penicillin was discovered in 1928 by Scottish scientist Alexander Fleming. People began using it to treat infections in 1942. There are several enhanced penicillin families which are effective against additional bacteria; these include the antistaphylococcal penicillins, aminopenicillins and the antipseudomonal penicillins. They are derived from "Penicillium" fungi. The term "penicillin" is often used generically to refer to benzylpenicillin (penicillin G, the original penicillin found in 1928), procaine benzylpenicillin (procaine penicillin), benzathine benzylpenicillin (benzathine penicillin), and phenoxymethylpenicillin (penicillin V). Procaine penicillin and benzathine penicillin have the same antibacterial activity as benzylpenicillin but act for a longer period of time. Phenoxymethylpenicillin is less
Valentine Leeper Valentine Leeper Valentine Alexa Leeper (14 February 1900 – 26 July 2001) was an Australian classicist, teacher, polemicist, and letter-writer of renown. Valentine Leeper was born on Valentine's Day 1900 in the Leeper Building of Trinity College at the University of Melbourne, daughter of Dr Alexander Leeper, first Warden of that college, and his second wife, Mary (née Moule). Her half-brothers, Reginald Leeper and Allen Leeper, both became prominent British diplomats. Her brother, Geoffrey Leeper, became the first professor of agricultural chemistry at the University of Melbourne. Valentine was educated at Melbourne Church of England Girls Grammar School and at