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.
Many people lived only at subsistence level - a couple of bad harvests - such as those of 1315-17 - resulted in starvation. In Halesowen in the West Midlands, 15 percent of males died as a result of this Great Famine. The rural economy showed other signs of strain in the first decades of the 14th Century.