immunity

The Pulse
12:51 pm
Tue November 12, 2013

Vaccines: Are You Hiding In The Herd?

RI child immunization rates, 2011. Click to enlarge.
Credit RI Dept. of Health / CDC, National Immunization Survey

Herd, as in "herd immunity," the concept being that the majority of vaccinated people protect the minority who aren't vaccinated, a kind of safety-in-numbers for your immune system. But what if the number in the minority starts to creep up?

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