That led me to this very interesting article:
http://pharmabiz.com/NewsDetails.aspx?aid=68352&sid=1
According to their report, nationally, the NPAFP rate is now twelve times higher than expected. In the states of Uttar Pradesh and Bihar — which have pulse polio rounds nearly every month—the NPAFP rate is 25 and 35 fold higher than the international norms.
lots of other interesting quotes at link
That’s indeed very interesting about India. Better sanitation and good nutrition goes a long way toward good health.
Excerpt:
CONCLUSIONS:
The incidence of NPAFP was strongly associated with the number of OPV doses delivered to the area. A doseresponse relationship with cumulative doses over the years was also observed, which strengthens the hypothetical relationship between polio vaccine and NPAFP. The fall in the NPAFP rate in Bihar and UP for the first time in 2012, with a decrease in the number of OPV doses delivered, is evidence of a causative association between OPV doses and the NPAFP rate.