Eli5: why can’t our bodies develop an immunity to bacteria and foodborne diseases?

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If you catch e.coli or salmonella once, shouldn’t your body learn new more efficient ways to combat it for the next time it gets in?

In: Biology

7 Answers

Anonymous 0 Comments

Body combats them quite fine. Problematic bacteria just grows-multiplies very quickly and overwhelms the immune system. That’s what makes them dangerous.

Also, many parasites are often too big and complex for body to do something about them. So foodborne problems come from quite particular bacteria and parasites. Rest body can deal with.

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