How does antibiotic resistance work and why do incorrect/inconsistent dosages lead to it?
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If someone is given an insufficient dose of antibiotics, or does not consistently take the full course of antibiotics, it can allow bacteria with some degree of resistance to the antibiotic to survive. Because the non-resistant bacteria have been killed, the resistant ones can breed without competing for food with other bacteria. Now the bacterial population is a bit resistant. Repeat this over and over and you start to have a bacterial population that is increasingly resistant to antibiotics.
Basically, improper use of antibiotics creates an environment that aggressively favors bacteria which are resistant.
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