Context
Cases of wild poliovirus continued to be on the decline across the world, according to the World Health Organization (WHO). Only two cases of the disease were detected early this year — one in Pakistan and Afghanistan each.
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What is Polio?
Polio in India
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Serious Symptoms of the disease
A smaller proportion of people (much less than one out of 100, or 1-5 out of 1000) with poliovirus infection will develop other, more serious symptoms that affect the brain and spinal cord:
Verifying, please be patient.