Antibiotics are microbial products or their derivatives that can kill susceptible microorganisms or inhibit their growth. Among microorganisms, they are only effective against bacteria, fungi or parasites and do not show any effect against viruses. The first natural antibiotic was penicillin, it was discovered by Alexander Fleming in 1928. 

Also Read: 11 Things Parents Should Know About taking Antibiotics.

Related Keywords: InterferonsBacteria.


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