After a slew of likely contenders such as heart disease, anemia, thyroid disease, depression or a sleep disorder are ruled out, getting to the source of fatigue gets murky. Among the many next-tier suspects is the Epstein-Barr virus (EBV).
Indeed, 2.4 million of those at risk of famine were in southern Sudan, the main arena of the war. Southern Sudan occupies almost one third of the territory of Sudan, which at 2.5 million square kilometers is the largest country in Africa.
Conflict ceased in 1972 under the Addis Ababa Agreement which gave southern Sudan considerable autonomy from the north. Civil war broke out again in 1983 when the Sudanese President, Gaafar Nimeiry, violated the Agreement by attempting to create a federated Sudan, including states in the south. Ongoing fighting and a military coup saw an increase of casualties in the south between 1989 and 1994.