Vaccine-derived polio cases hit 30, experts express worry - Punch Newspapers

8/7/2022 12:00:00 AM3 years 6 months ago

Thirty cases of circulating vaccine-derived poliovirus type 2 have been recorded so far in Nigeria in 2022, The PUNCH reports.

Thirty cases of circulating vaccine-derived poliovirus type 2 have been recorded so far in Nigeria in 2022, The PUNCH reports. The figure is contained in the report of the Global Polio Eradication I… [+4071 chars]

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