In pictures: Life in a Sudanese leper colony

Closely connected

Leprosy causes permanent damage to the skin, nerves, limbs and eyes. These men have been cured.

Symptoms can take as long as 20 years to appear, but treatment in the early stages averts disability.

It is easy to treat, but only if the drugs to tackle it are readily available. It is often closely connected to poverty.

Southern Sudan was devastated by a brutal civil war, before signing a peace deal three years ago. The 21 years of conflict pushed back development by decades.

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