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Fig. 2 | BMC Infectious Diseases

Fig. 2

From: An assessment of the geographical risks of wild and vaccine-derived poliomyelitis outbreaks in Africa and Asia

Fig. 2

Assessed risk of wild (a, c, e, g) and vaccine-derived (b, d, f) outbreaks of poliomyelitis from January–June 2015 to July–December 2016. Confirmed outbreaks of wild and cVDPV within each time-period are also indicated and the parentheses indicate if outbreaks from previous time-periods are on-going. Nigeria was included in the wild risk assessment in January–June 2016 and was re-classified as endemic when the July–December 2016 risk assessment was made. The publication of this map does not imply the expression of any opinion whatsoever on the part of WHO concerning the legal status of any territory, city, or area or of its authorities, or concerning the delimitation of its frontiers or boundaries

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