A spokeswoman for the World Health Organization, Maryam Yunus, said that 306 children died in Pakistan of measles in 2012, compared to 64 the year before. She said the jump was most pronounced in southern Sindh province, where measles killed 210 children in 2012. She said only 28 children died there in 2011, according to a report of the Associated Press. The World Health Organization did not give a reason for the increase in deaths, but a provincial health official in Sindh said that the disease hit areas where poor families did not vaccinate their children. Provincial health minister Saghir Ahmed said 100 children died in Sindh province in December alone, mostly in areas where many people were not vaccinated. He said health officials recently launched a campaign to vaccinate 2.9 million children in the affected areas of the province and urged parents to get their children vaccinated. Measles is an extremely infectious disease spread by coughing and sneezing, or personal contact. It causes a fever, cough and a rash all over the body. Most people who contract the disease recover but it can be deadly for malnourished children who have not been vaccinated. Complications from the disease can include blindness, an infection that causes brain swelling, dehydration and diarrhea, and pneumonia. According to WHO, 139,300 people died of measles worldwide in 2010.