لماذا انتشر مرض الحصبة في الشمال السوري وما هي طرق الوقاية من

IDLIB, SYRIA - NOVEMBER 06: Syrian kids are vaccinated within a vaccination for measles campaign in Idlib, Syria on November 06, 2018. Medical staff aim to reach 1 million children with the campaign in Idlib, Hama, Aleppo, Khan Sheikhoun and cleared Afrin region, which was liberated from YPG/PKK terrorists. (Photo by Munib Teym/Anadolu Agency/Getty Images)