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Polio in Syria worries World Health Organization

Polio vaccinations have declined rapidly since the start of Syria’s civil war, and an outbreak is on the rise. Now, there is concern that refugees will carry the disease to neighboring countries. NBC’s chief medical editor Dr. Nancy Snyderman reports from Bekaa Valley, Lebanon.

Polio vaccinations have declined rapidly since the start of Syria’s civil war, and an outbreak is on the rise. Now, there is concern that refugees will carry the disease to neighboring countries. NBC’s chief medical editor Dr. Nancy Snyderman reports from Bekaa Valley, Lebanon.