Why do we need to take antibiotics in a certain amount of time?
In: Chemistry
The bacterium that is a leading cause of bacterial sore throat *Streptococcus pyogenes* contains a substance, the M antigen, that is similar to materials in human heart valves.
The germ is a pushover when it comes to penicillin, which is good. An infection can be brought under control and cured quickly so that the body does not develop antibodies to M.
Antibodies to the M antigen are the cause of [rheumatic heat disease](https://www.who.int/news-room/fact-sheets/detail/rheumatic-heart-disease) which can dramatically shorten young lives.
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