Visceral leishmaniasis, also known as kala-azar Courtesy of World Health Organization (WHO)

Authorities in Fashoda County of Upper Nile State have confirmed cases of Kala-azar in the county.

Health experts say Kala-azar or black fever, is the second-largest parasitic killer in the world after malaria, and it is responsible for an estimated five hundred thousand infections each year worldwide.

How it spreads

The parasite is spread to humans by bites from infected female sand flies. It attacks the immune system, and is almost always fatal if not treated.

Symptoms of Kala-aza

• Fever
• Weight loss
• Weakness
• Sores and ulcers

Prevention

• Try to avoid being bitten by sand flies by covering up
• Avoid areas which attract sand flies
• Use bed nets