Define and Describe on Antibiotics - QS Study
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Antibiotics are living substances, which at a minimum number can kill other microorganisms or hinder that growth. Antibiotics are formed from different organisms but are sufficiently formed from bacteria. Streptomyces and fungus like moulds. They do not work against infections that are caused by viruses – for example, the common cold or flu; most coughs and bronchitis.

Antibiotics are sufficiently formed from the four genera mentioned bellow:

  1. Bacillus,
  2. Penicillin
  3. Streptomyces
  4. Cephalosporium.