
Evolution
Immunity and the Invertebrates
The fabulously complex immune systems of humans and other mammals evolved over hundreds of millions of years -- in sometimes surprising ways
The fabulously complex immune systems of humans and other mammals evolved over hundreds of millions of years -- in sometimes surprising ways
A bacterium transmitted to human beings by the bite of a deer tick causes this hazard of summertime. Interleukin-l, an immune-system regulator, may mediate its potentially serious arthritis-like symptoms...
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