organisms, produced by bacteria or molds that are toxic to other micro-

organisms .Antibiotic refers to antibacterials all antibiotics are more toxic

to an organism than they are to an animal or human. How they made

antibiotics was not understood until the late 20th century. the principle

of using organic compounds to fight infection has been known since ancient

times. Plant extracts were used for medicine for centuries and still used

today as home remedies. They also used cheese molds for the treatment of

infection. The first observation of what would now be called an antibiotic

effect was made in the 19th century by a French chemist Louis Pasteur who

penicillium notatum mold in small containers. There are four types of

Some common words found in the essay are:
Louis Pasteur, Howard Florey, Penicillin Antibiotics, Skin Rashes, Meningitis Anthrax, Alexander Flemming, penicillin penicillin, penicillin types, syphilis gonorrhea,
Approximate Word count = 544
Approximate Pages = 2 (250 words per page double spaced)