Population
Wild poliovirus type 1 (WPV1) strains detected in Pakistan during 2013-2015
Design
Other
Follow-up
2013-2015
Authors
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Supports expanded polio surveillance across Pakistan; leaves open whether single-focus strategies suffice for eradication.
Genomic surveillance reveals that widespread poliomyelitis infection in Pakistan is maintained by multiple endemic foci rather than single-source transmission from North Waziristan.
Alam et al. (2015) studied this question.
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