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Acute Flaccid Paralysis (AFP): Surveillance Standard for ... - EpiCentro

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Department of Infectious Diseases WHO EURO<br />

In addition to finding poliovirus if it is<br />

circulating, the BIG Question<br />

answered by <strong>AFP</strong> surveillance is:<br />

How can we be certain that there is<br />

no wild poliovirus in a country<br />

which reports ‘zero’ cases of polio

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