Never one to waste an opp
Never one to waste an opportunity, this man was suffering from a cold and allowed a few drops of his  nasal mucus to fall on to a culture plate of bacteria. Later observing the culture, he noticed that many of  the bacteria had been killed, which resulted in his discovery of the enzyme lysozyme. In 1928, while  serving as a professor at St. Mary's Hospital Medical School, he accidentally left a culture of  staphylococcus sitting out, which became infected with some mold. For ten points name this Scottish  bacteriologist who was awarded a share of the 1945 Nobel Prize in Medicine for discovering penicillin.
Never one to waste an opportunity, this man was suffering from a cold and allowed a few drops of his  nasal mucus to fall on to a culture plate of bacteria.
Sir Alexander {Fleming}