Population
Worldwide cases of vaccine-derived polioviruses and wild poliovirus during January 2016–June 2017
Design
Review
Authors
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Sustained vaccination efforts remain essential to maintain gains; leaves open the timeline for complete WPV1 eradication.
Despite the >99.99% decline in polio cases worldwide, rare outbreaks of vaccine-derived polioviruses continue to occur, underscoring the need to cease all oral poliovirus vaccine use once eradication is certified.
Jorba et al. (2017) studied this question.
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