Presentation about Penicillin ~Background~ This is presentation's manuscript about Penicillin. I want to know mistake in my sentences. Please check my sentenses!! Background Penicillin is the first antibiotic and inhibits the growth of microorganisms such as bacteria causing disease and inhibits function. Before it was discovered, plague began to rage around the Europe in the 14th century. Plague is a disease caused by plague bacillus. Lymph glands and lungs are affected and cause symptoms leading to death such as sepsis and difficult breathing. It was also called black death rather than darkening the skin when you infected. By repeating several epidemics until the end of the 14th century, 85 million people lost their lives all over the world. Especially in Europe, It is estimated that 30 million people from 20 million people, about 30% of the population of Europe at that time lost their lives.