NURSING ANM AND GNM

Detailed explanation-1: -After isolating the mold and identifying it as belonging to the Penicillium genus, Fleming obtained an extract from the mold, naming its active agent penicillin. He determined that penicillin had an antibacterial effect on staphylococci and other gram-positive pathogens.

Detailed explanation-2: -Alexander Fleming (1881–1955): Discoverer of penicillin.

Detailed explanation-3: -But it was not until 1928 that penicillin, the first true antibiotic, was discovered by Alexander Fleming, Professor of Bacteriology at St. Mary’s Hospital in London.

Detailed explanation-4: -Selman Abraham Waksman (1888-1973) was born in the rural Ukrainian town of Novaya Priluka. The town and its nearby villages were surrounded by a rich black soil that supported abundant agricultural life.

Detailed explanation-5: -Alexander Fleming was, it seems, a bit disorderly in his work and accidentally discovered penicillin. Upon returning from a holiday in Suffolk in 1928, he noticed that a fungus, Penicillium notatum, had contaminated a culture plate of Staphylococcus bacteria he had accidentally left uncovered.