Already a subscriber? Make sure to log into your account before viewing this content. You can access your account by hitting the “login” button on the top right corner. Still unable to see the content after signing in? Make sure your card on file is up-to-date.

The Ebola outbreak in the Democratic Republic of Congo has passed 6,000 confirmed cases and 2,900 deaths, making it the worst in the country’s history and the fastest-spreading Ebola epidemic ever recorded.

Getting into it: The DRC Ministry of Communications confirmed the numbers, reporting 6,041 confirmed cases, 2,911 deaths, 1,366 recoveries, and another 619 people in isolation or hospitalized. This outbreak is caused by the Bundibugyo strain, a rare type of Ebola with no approved vaccine or treatment. The government declared the outbreak in mid-May, but investigators now think the virus had been moving through the population as early as February. It has spread from three health zones to roughly 60 across six provinces, with the epicenter in Ituri and heavy activity in North Kivu and Haut-Uele.

Most cases and deaths are turning up in people who were never on a contact tracing list, meaning the virus is moving through communities where nobody is tracking it. The WHO still has the outbreak listed as out of control and expects it to surpass the 2014-2016 West Africa outbreak, which killed over 11,000 people and stands as the worst one on record.

Everything about the response is harder than it should be. The outbreak is concentrated in eastern provinces already dealing with armed conflict, displacement, and existing humanitarian crises, and camps for the displaced are a particular worry given how tightly packed people are living there. Doctors Without Borders says closed airports are making it harder to move staff , run tests, refer patients, and bring in supplies.

Response teams are also being attacked over rapid burials of those who have died from Ebola. If you’re unaware, bodies of Ebola victims are highly contagious, which is why officials have taken over burials of suspected victims wherever they can, a policy that really pisses off families and often leads to confrontations.

On vaccines, Congo started immunizing health and frontline workers last week with Ervebo, a vaccine that held up in earlier outbreaks driven by the more common Zaire strain. Nobody knows how well it will work here. Clinical trials for a licensed Bundibugyo vaccine are underway.

This all comes as UN Secretary-General Antonio Guterres calls for additional aid. In a statement, he said, “This outbreak is the fastest-growing Ebola epidemic on record. It is growing faster and wider than the response to contain it, but it can be stopped.” He added that “international attention, political focus and resources are still lagging behind the reality unfolding on the ground” and that the world “must also overcome another virus, the virus of indifference.”