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what is the difference between a broad spectrum and narrow-spectrum antibiotics? Why can't every antibiotic work...

what is the difference between a broad spectrum and narrow-spectrum antibiotics? Why can't every antibiotic work for every organism?

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Broad spectrum antibiotics work against numerous strains and types of different bacteria that share similar structures and metabolic functions that can be attacked and infected for killing.

Narrow spectrum antibiotics are more limited in their function and often serve as a more selective strategy against such bacteria.

Using antibiotics for each and every infectious infections like(cold and others) does not work and it can produce more difficult-to-kill bacteria. Taking antibiotics too often or for the wrong reasons can so much change bacteria tjat antibiotics do not operate against them. This is called bacterial resistance or antibiotic resistance.

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