role of bacteria in medicine

Various micro-organisms, including certain fungi and some bacteria, produce chemical substances that are toxic to specific bacteria. Such substances, which include penicillin and streptomycin, are known as antibiotics; they either kill the bacteria or prevent them from growing or reproducing.
Beneficial bacteria, also known as probiotics, may be able to help treat certain infections, such as urinary tract or yeast infections in women. The bacteria can also be used to treat gastrointestinal issues. For example, these bacteria may help people who have irritable bowel syndrome. Other medical uses of probiotics include treating eczema, reducing the duration of the flu or common cold, and helping to reduce the recurrence of some cancers.
Genetically-engineered bacteria produce insuilin,interferon,bovine somatotropin and other important medicine.
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cHeErS!! :)
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