Key result
In the US population aged 6-49 years during 2009-2010, overall poliovirus seroprevalence was high at 93.9% for type 1, 97.0% for type 2, and 83.1% for type 3, indicating no large immunity gaps.
Cross-Sectional (n=4,806)
Yes
Seroprevalence to all three types of poliovirus remains high in the US population, suggesting no large immunity gaps that would pose an imminent risk from importation.
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High US polio seroprevalence suggests low population importation risk; leaves open subgroup vulnerabilities requiring targeted surveillance.
Wallace et al. (2016) conducted a cross-sectional in Poliovirus immunity (n=4,806). Poliovirus seroprevalence was evaluated on Overall seroprevalence of poliovirus antibodies for types 1, 2, and 3. In the US population aged 6-49 years during 2009-2010, overall poliovirus seroprevalence was high at 93.9% for type 1, 97.0% for type 2, and 83.1% for type 3, indicating no large immunity gaps.
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