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.
Researchers later identified the cause as a never-before-seen filovirus, termed âMarburgâ after one of the outbreak locations. Eleven years later, Ebola virus was identified when two outbreaks of hemorrhagic fever occurred in northern Zaire (now the Democratic Republic of Congo) and southern Sudan.