WHO: At Least 22 People Have Contracted Polio in Syria

Most are children

At least 22 people - most of them babies and toddlers - are now believed to have contracted polio in Syria, the World Health Organization has reported.

If confirmed, it would be the first outbreak of the disease there in 14 years. Syria's Health Ministry began an immunisation drive on Thursday.

Before Syria's civil war began in 2011, some 95% of children were vaccinated against the disease.