vaccine-derived polio
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HealthWise
Polio cases drops by 99.9%, says WHO
The World Health Organisation has said that the global efforts has achieved a more than 99.9 per cent decrease in…
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News
Vaccine-derived polio cases hit 30, specialists express concern
Thirty cases of circulating vaccine-derived poliovirus type 2 have been recorded so far in Nigeria in 2022. The figure is…
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