how does not finishing a course of antibiotics cause antibiotic resistance?
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Not a perfect comparison, but you’re five so:
Not finishing an antibiotic course is like giving your illness a vaccine for the antibiotic. When we get a flu vaccine, it’s a weak version of the flu that teaches our body how to fight it.
When you give bacteria *some* antibiotics, the surviving bacteria have now learned how to fight that antibiotic. Completing the full course ensures that all those little bacteria are dead, though, so there is nobody left to learn and reproduce.
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