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Tuesday 9 February 2010

Use and Misuse of Antibiotics

Antibiotics are chemical substance produced by certain micro-organisms that inhibit or kill some other micro-organism. They have a dramatic impact on the treatment of infectious diseases. Since the discovery of the first Antibiotic, penicillin which was derived from Fungi in 1940, a large number of antibiotics have been discovered from other Fungi and Bacteria, while many are synthesized artificially.
Some antibiotic drugs are effective against only certain types of bacteria while other known as broad spectrum antibiotics are effective against wide range of bacteria. The targets of antibiotics in bacteria are cell-wall, plasma membrane and bio synthetic processes of protein and nucleic acid.

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