A 4-year-old child became the second person to die of Ebola in Uganda, the World Health Organization said Saturday, in a setbac

Ebola patient, a 4-year-old child, has died in Uganda, the World Health Organization said, citing the country’s health ministry. The fatality brings the number of confirmed cases in Uganda to 10. The East African country declared an outbreak of the highly infectious and often fatal hemorrhagic disease in January after the death of a male nurse at the Mulago National Referral Hospital in the capital of Kampala.

A 4-year-old child became the second person to die this year of Ebola in Uganda, the World Health Organization (WHO) said Saturday, in a setback for health officials who had hoped for a quick end to the outbreak that began at the end of January.

The outbreak has been traced, tentatively, to three children who ate a bat, the W.H.O. said, and known threats like Ebola and Marburg have been ruled out.

The World Health Organization says the 4-year-old passed away this week at Mulago Hospital in the capital, Kampala.