An eleven month old immune-deficient boy in Dharur block of Beed district was found to be afflicted from Vaccine Derived Polio Virus (VDPV). He had been suffering from brain lesions and was admitted to a Government Medical college hospital on May, 7 after a month-long illness. The boy succumbed on June, 22. The main cause of his illness or death has been reported as infection in the brain.
VDPVs are extremely rare and are detected in children with immunodeficiency or in populations with low levels of immunization. VDPVs are different from wild polioviruses and India has not reported any case of polio due to a wild poliovirus since January, 2011. A total of 741 children had gotten paralyzed due to the wild poliovirus in 2009 in India accounting for over half of the global polio cases against this backdrop, India's success in keeping children free from any wild polio virus for the last more than two years is being globally acclaimed as a major public health achievement. WHO removed India from the list of polio endemic countries in 2012 following one year without any case due to wild poliovirus in the country. Having completed more than two years without the wild poliovirus, India has moved closer to a polio-free certification in early 2014.
"The government of India and the states have been focusing on intensifying routine immunization to minimize the risk of VDPVs. The response is consistent with the global strategy. The most important strategy for prevention of emergence of VDPVs is achieving and maintaining high routine immunization coverage with OPV doses among infants", said Mr Keshav Desiraju, secretary, department of health and family welfare, government of India.
To achieve higher routine immunisation rates and protect children against all vaccine preventable diseases, the government declared 2012-13 as ‘Year of Intensification of Routine Immunisation'.
In 2013, the government is holding four ‘Special Immunisation Weeks' in the 411,129 high risk areas identified by the polio eradication programme. These areas comprise of slums, nomadic sites, construction sites, brick kilns and other areas housing people on the move, who often miss out on immunisation due to their transient nature. These special immunization weeks in April, June, July and August are aimed at protecting the vulnerable populations with all vaccines available under routine immunisation, including tOPV. Of the 411,129 high risk areas, 82,965 are in Maharashtra.