We have come really close to eradicating the deadly disease of polio and so any setbacks have to be viewed with concern. NPR’s Jason Beaubien, who has been doing some excellent reporting on health issues in Africa, says that the recent discovery of two new cases in the northeast of Nigeria (near the border with Chad) has health experts worried because that country had gone for two years without any cases and was on track to be next country to be declared polio-free.
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