Officials previously questioned whether the deadly disease was indeed present in the African country, which had seen 8 suspected Marburg deaths.

The disease is a close cousin of Ebola, causing similar symptoms and spreading in the same way. It can cause death in up to 88% of infected people.

Tanzania has confirmed a new case of Marburg virus disease in the northwestern Kagera region, following 25 negative tests. Dozens of individuals remain under observation as the government works to contain the outbreak.