The final stages of the global eradication of poliomyelitis

Nicholas C. Grassly

doi:10.1098/rstb.2012.0140

Figure 1.

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The geographical distribution of children with poliomyelitis associated with wild-type poliovirus shown by serotype for 2012 and (inset) the total number of children with poliomyelitis globally by serotype reported each year during 2001–2012. Poliomyelitis as a result of vaccine-derived polioviruses is not shown. India was declared ‘polio-free’ in 2012, the last case reported from West Bengal in January 2011. The arrows above the inset graph indicate when monovalent and bivalent OPVs were first used by the GPEI. Map and data are from WHO (www.polioeradication.org).