Congo reported more than 1,000 new mpox cases in the last week up to Tuesday as African health authorities asked for desperately needed vaccines to help fight its “growing” threat on the continent. The World Health Organization has declared the outbreaks in Africa a global emergency.

Mpox belongs to the same family of viruses as smallpox but causes milder symptoms like fever, chills and body aches, and mostly spreads through close skin-to-skin contact, including sexual intercourse. People with more serious cases can develop lesions on the face, hands, chest and genitals.

While mpox has been reported in 12 of Africa’s 54 countries during these outbreaks, the vast central African nation of Congo has recorded by far the most cases this year. Out of a total of 18,910 cases in 2024, 94% — or 17,794 — were in Congo, the Africa Centers for Disease Control and Prevention said, with 535 of the 541 deaths reported.

The figures are likely an underestimate, as only about one in five suspected cases in Congo are being tested for mpox. Africa CDC director-general Dr. Jean Kaseya said many affected African countries had limited testing and surveillance capabilities.

Over the last seven days, Congo recorded 1,030 of the 1,405 new cases in Africa according to statistics provided late Tuesday by the Africa CDC. Only 16% of the cases have been confirmed by virus tests, but the infections meet the agency’s definition of the disease.

The rising mpox case count in Africa and a new form of the virus identified in Congo that might be more easily transmitted led the WHO to declare it a global health emergency last week. Some hope this will encourage donors to share vaccines and other help to curtail the outbreaks in Africa before cases spread internationally as Sweden recorded a case of the new mpox variant first seen in eastern Congo.

The WHO has previously said its past efforts to raise donations for mpox failed to elicit even a single donor dollar. (ABC News)