- The race is on to keep refugees healthy as they migrate across continents
- Moving populations bring challenges for health teams to provide and follow-up with treatment
- Refugees are suffering from a new range of health conditions NGOs and UN agencies are not ready for
Vital Signs is a monthly program bringing viewers health stories from around the world.
(CNN)More than a million people fled their home countries in 2015 in search of refuge, half of them escaping the war in Syria. The race is on to keep them alive -- and healthy.