Polio vaccination has begun in Syria's besieged Yarmouk camp, the UN agency for Palestinian refugees UNRWA says.
The World Health Organization (WHO) has announced that polio has paralyzed 13 children in Syria.
German scientists have warned that polio outbreak in war-ravaged Syria, confirmed in at least 10 children, may threaten Europe.
The World Health Organization (WHO) has confirmed outbreak of polio among Syrian children.