Monday 25th January 2021
Monday, 25th of January 2021
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WHO to declare global eradication of poliovirus type-3

The World Health Organisation (WHO) has said the world will soon be left with only one remaining wild poliovirus as it is expected to announce the eradication of the type-3 virus.

Dr Tedros Adhanom Ghebreyesus
Dr Tedros Adhanom Ghebreyesus, Director-General of the World Health Organisation (WHO). Photo credit: AFP / FABRICE COFFRINI / Getty Images

According to WHO, since the UN health agency launched a global initiative in 1988 to wipe out the virus, infection numbers had so far dropped by 99 per cent, preventing 18 million cases of paralysis.

A WHO spokesman, Christian Lindmeier, said in Geneva that the eradication of type-3 would likely be certified on Thursday, October 24, 2019 to coincide with World Polio Day.

No infection with this type had been detected since a case in Nigeria in 2012.

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“This shows us that the tactics are working, as individual family lines of the virus are being successfully knocked out.

“Type-2 has previously been eradicated, with the last case detected in India, in 1999.

“Only poliovirus type-1 remains in circulation, but it is restricted to border areas in Pakistan and Afghanistan,’’ Lindmeier.

However, Lindmeier warned that immunisation rates must be kept at high levels, to prevent the spread of polio from vaccines that use a weak but still active virus.

The Philippines saw its first polio case in decades in September, after unsanitary vaccination conditions allowed the virus to spread to children who had not been immunised.

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According to WHO, there has been a similar individual case in African countries. Such back-door infections could only be prevented if the entire population were immunised.


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