Sept 11 (Reuters) – International agencies and governments are struggling to contain the world’s worst epidemic of Ebola since the disease was discovered in 1976. The hemorrhagic virus has killed at least 2,296 people in West Africa. Here is a timeline of the main developments in the outbreak. March 22: Guinea confirms that a previously unidentified hemorrhagic fever, which killed over 50 people in its southeast Forest Region, is Ebola. One study traces the suspected original s