At least 16 people have died of Ebola in an outbreak in western Uganda, a senior Ministry of Health official said Thursday. Dr. Sam Zaramba, director general of health service, said laboratory tests in South Africa and the United States had confirmed 51 Ebola cases, and of those 16 patients died. Ebola kills most of those it strikes through massive blood loss, and has no cure or treatment. It is spread through direct contact with the blood or secretions of an infected person, or objects that have been contaminated with infected secretions. The World Health Organization says more than 1,000 people have died of Ebola since the virus was first identified in 1976 in Sudan and Congo. Primates, hunted by many central Africans for food, can carry the virus.