NA: onset of paralysis in most recent case is prior to 2014. Figures exclude non-AFP sources. Madagascar, Ukraine and Laos cVDPV1, all others cVDPV2. cVDPV definition: see document "Reporting and classification of vaccine-derived polioviruses" at - See more at: http://www.polioeradication.org/Dataandmonitoring/Poliothisweek.aspx#.dpuf