ISSN (Print) - 0012-9976 | ISSN (Online) - 2349-8846

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Information on Polio Cases

The National Polio Surveillance Project (NPSP) is currently the only agency or organisation which collects information regarding any child up to the age of 15 years who develops paralysis, is labelled as acute flaccid paralysis (AFP) case and is investigated to establish the cause of paralysis. Each case entails a physical examination; two samples of faecal matter are collected within two weeks of onset of paralysis and sent to the reference laboratories for isolation of wild polio virus. A follow-up is done after 60 days of onset of the disease. Then the index case is labelled as either non-polio and discarded or categorised. The number of vaccine associated paralytic poliomyelitis (VAPP) cases has never been disclosed in AFP Alert, a monthly newsletter of the NPSP or the weekly report on its website.

The last polio case by wild poliovirus labelled as a confirmed polio case was reported on 13 January 2011. In March 2014 India was declared a polio-free country. In the 1 March 2014 report, Table 1 showed that in 2013 there were 54,846 AFP cases, no confirmed polio case, five vaccine-derived polioviruses (VDPV) cases, 17 polio compatible cases, 52,993 had been discarded as non-polio, and 1,831 were still pending, that is, under investigation. Later the number of polio compatible cases rose to 23. Since then the NPSP has stopped publishing the weekly report on its website www.npspindia.org/.

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