WHO recommends switching to injectable polio vaccine

"[T]his month the World Health Organization (WHO) in Geneva, Switzerland, proposed a shift in [polio] vaccination strategy from oral vaccines to injected ones that may have to be administered in clinics," Nature reports, adding, "The change is needed to mop up the last remaining pockets of polio, but experts say that it poses challenges in [rural areas], which have poor access to health care."

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