Vaccinating too few children in Syria against polio because the six-year-old war there makes it difficult to reach them risks causing more cases in the future, the World Health Organization (WHO) said on Friday, posing a dilemma after a recent outbreak.
Two children have been paralyzed in the last few months in Islamic State-held Deir al-Zor in the first polio cases in Syria since 2014 and in the same eastern province bordering Iraq where a different strain caused 36 cases in 2013-2014.
Vaccinating even 50 percent of the estimated 90,000 children aged under 5 in the Mayadin area of Deir al-Zor would probably not be enough to
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