Thanks to vigorous efforts to eradicate the poliovirus through vaccination, there are only three countries on the face of the earth where polio is still endemic. NPR reporters and editors hosted a chat on Twitter: #chasingpolio.
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Read the complete post at http://www.npr.org/blogs/health/2012/10/19/163239081/tweet-chat-chasing-down-polio-eradication-in-sight?ft=1&f=103537970
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Oct 19 2012, 08:32 AM
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Shots - Health News