DR Congo is one of the ten poorest countries in the world, coping with violence, disease, hunger, and the mass displacement of people caused by years of civil wars and cross-border conflicts. Partly through impunity and political impotence, conflicts continually flare up in the border areas, and East Congo remains a hotbed of unrest. Measles is a highly contagious disease caused by a virus that attacks mostly children. Left untreated, complications include blindness, brain swelling, diarrhoea, and severe respiratory infections. Congolese health officials say that comprehensive vaccination programmes are the only way to stop the epidemic from spiralling out of control. Ill-informed opposition can derail such plans. Measles has killed 6,000 people in a year, but its severity is overshadowed by the world's second-biggest Ebola epidemic on record - killing over 2,230 so far. Although new infections have slowed recently, the WHO warns that the virus is likely to resurge.