Part 1 of Essay
An antibiotic, is defined to be a drug produced by certain microbes. Most doctors use to help fight the germs in a patient. are obtained from plants, fungi, air, water, soil, just about anything on earth. kill and attack the germ or virus in the body, but do not hurt the human cells, ordinarily. The antibiotics are use ....

Part 2 of Essay
.... He detected that a substance he called "penicillin" destroyed bacteria. Then in the late 1930's, two British scientists invented a method of extracting penicillin from the mold. This was the start of developing new drugs to treat diseases and bacteria. Over the years, numerous thousands of antibiotic material have been found in nature as well as produced chemically but, there are few that are safe and useful. However the ones that are safe and effective have saved many lives and have helped extend life expectan ....