Polio scare: Officials launch emergency vaccine drive for new strain

New Delhi: Two years after India was declared polio free, health officials said Wednesday they were launching an emergency vaccination drive after discovering a strain of the disease that is not covered by existing inoculations.

Although no actual case of the disease has been detected, health officials said they would vaccinate hundreds of thousands of children living in Telangana, where the variety of the virus was found in a sewer during routine checks.

The strain had not been seen in the country for 17 years and the vaccines are being flown in from Geneva as they are not available locally in sufficient quantities.

A child receives polio drops during a polio eradication programme in Jammu. File photo Reuters

A child receives polio drops during a polio eradication programme in Jammu. File photo Reuters

G Srinivasa Rao, a health official in Telangana, said the type of polio discovered likely originated in a virus contained in an oral vaccine and mutated after it was given to a child with a weak immune system.

"Most likely a child released it through stool who must have been vaccinated a year ago. Such rare cases happen in children with low immunity," he said.

Rao said more than 320,000 under-fives would be vaccinated in two districts of the state to conform with World Health Organisation (WHO) protocol.

However, the health ministry said the discovery would not affect India's polio-free status.

"The special immunisation campaign will ensure all vulnerable children living in high-risk areas are given protection against polio," it said.

The WHO declared India polio-free in 2014, three years after its last case of the disease, hailing the achievement as a "momentous victory".

But India faces a perpetual threat from the virus as it is endemic in neighbouring Pakistan and Afghanistan.

Polio spreads through faecal matter, attacks the central nervous system and can leave its victims crippled or dead.

Updated Date: Jun 15, 2016 19:51 PM

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