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Lifestyle
Pathogens & People: Pathogens, as with people, come in all shapes and sizesPublished 10/05/08
So, naturalists observe, a flea
These lines from Jonathan Swift's classic poem, ''a Rhapsody,'' about how the little are eaten by the big and the big by the bigger is a rule of nature that also applies in the very small world of microorganisms. You might not think microbes have a lot of size variation, but they do, and size matters. It determines who infects whom.
Let's look at the scale of small things. Our red blood cells are about 10 micrometers...
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