Two Strains of Polio Are Gone, but the End of the Disease Is Still Far Off

By BY DONALD G. MCNEIL JR. from NYT Health https://ift.tt/2p9ZHJt
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Only polio virus Type 1 persists, and only in Pakistan and Afghanistan. But now mutant vaccine viruses are paralyzing some unvaccinated children.
Two Strains of Polio Are Gone, but the End of the Disease Is Still Far Off - By BY DONALD G. MCNEIL JR. - at Health - Keyword: Poliomyelitis, Vaccination and Immunization, Viruses, Paralysis, Epidemics, Muslims and Islam - From New York Times - Published at October 24, 2019 at 05:00AM