Why are measles cases rising globally?

A rise in global measles cases is causing concern amongst health officials. The World Health Organization states that there was more than a 30-fold increase in cases in Europe last year. Experts in the US are also worried about the spread of the highly contagious disease. International SOS’ Regional Medical Director Dr Kate O’Reilly and Nurse Co-ordinator Katie Williams tell us what’s behind the rise in measles cases and what you can do to keep you and your family safe.