×

Treatment trials for Ebola strain behind Congo outbreak show promise, WHO says

By Thomson Reuters Aug 4, 2026 | 4:57 AM

GENEVA, Aug 4 (Reuters) – Testing of experimental treatments, preventive medicines and vaccines for the Bundibugyo strain of Ebola ​behind Democratic Republic of Congo’s ‌ongoing outbreak is advancing rapidly, the U.N.’s World Health Organization said on Tuesday.

The epidemic — the second-largest and fastest-spreading on record — was caused by ‌the ​rare Bundibugyo strain of ⁠the virus, for ⁠which there are no approved vaccines or treatments.

But Vasee Moorthy, acting head of WHO’s R&D Blueprint programme, told journalists ​in Geneva that research protocols developed before the epidemic’s onset have helped ⁠speed up testing of ⁠new treatments.

“If you compare this ​outbreak to previous Ebola outbreaks, we have ​been able to start trials more ‌quickly,” he said. “It’s true that the preclinical data that we’re seeing is promising.”

He cautioned, however, that only clinical trials could ⁠determine whether treatments and vaccines are effective.

The epidemic in Congo has so far defied health ⁠workers’ efforts ‌to contain it.

As of August ⁠1, Congo had recorded 3,748 ​confirmed ‌cases and 1,657 confirmed deaths ​across 49 ⁠health zones in five provinces, according to WHO data. About 17,000 contacts are under monitoring, with roughly 80% checked daily.

(Reporting by Olivia Le Poidevin; Editing by ​Joe Bavier)