On May 17, 2026,the World Health Organisation declaredan Ebola outbreak in the Democratic Republic of Congo and Uganda a public health emergency of international concern.

Over 336 suspected cases and 88 deaths had already been recorded, concentrated in DRC's northeastern Ituri province, a region that borders Uganda and South Sudan and sees constant cross-border movement.

Uganda's capital, Kampala, confirmed two cases within 24 hours of each other, both travellers from DRC, with no apparent link to each other. The WHO warned that neighbouring countries sharing land borders are at high risk of further spread.

What makes this outbreak different from DRC's previous sixteen is the pathogen responsible.

This one is caused by the Bundibugyo virus, a rare species within the Ebola family that has only caused two previous documented outbreaks in recorded history: first in Uganda's Bundibugyo district in 2007, and again in DRC's Isiro Province in 2012.

It is so uncommon and understudied thatthere is currently no approved vaccine or treatment for it. The drugs and vaccines developed for the more familiar Zaire strain are useless against it.

What Is Ebola?

Ebola is not a single virus; it is a family. The WHO identifies three strains known to cause large outbreaks: Zaire, Sudan, and Bundibugyo.

They all produce the same brutal symptoms: fever, severe body aches, vomiting, diarrhoea, and in advanced cases, haemorrhagic symptoms.

Mortality rates is said to reach as high as 90% depending on the strain and quality of care available. The virus spreads through direct contact with bodily fluids of an infected or deceased person, making healthcare workers, caregivers, and people attending burials especially vulnerable.

DRC has now recorded its 17th Ebola outbreak since the virus was first identified in 1976. The country has contained this disease more times than anywhere else on earth, but each new outbreak can still spiral.

The 2018–2019 epidemic in North Kivu and Ituri, the exact same province at the centre of this crisis, lasted nearly two years and killed over 2,000 people before it was brought under control.

Why Does This Keep Happening?

Fruit bats are the most likely natural reservoir of the virus, and every time humans push into forest ecosystems through logging, mining, farming or hunting bushmeat, they create opportunities for the pathogen to cross into a new host.

Scientists call this zoonotic spillover, and diseases like Ebola have been emerging at an alarming rate precisely because of deforestation, land shifts, and ecosystem destruction.

Climate change compounds it. Rising temperatures and shifting weather patterns alter animal migration routes and push disease-carrying species into regions that have never encountered them.

The chain reaction is consistent as climate disruption moves animals, animals carry pathogens into new spaces, and human contact turns a spillover into an outbreak.

The more we disrupt ecosystems, the faster this cycle turns.

Hantavirus Is Making the Same Argument

Ebola is not the only disease making rounds now.

Just days before the WHO declaration, hantavirus made international headlines after a cluster of cases emerged on a cruise ship, and more than 100 hantavirus cases had been recorded in Argentina between mid-2025 and early 2026, roughly double the previous year's numbers.

Hantavirus is rodent-borne where Ebola is bat-linked, but the story has the same structure.

It is caused by shrinking habitats that push reservoir animals closer to human settlements, spillover follows, and a pathogen that once stayed contained within an ecosystem suddenly has a new host to exploit.

Why Experts Say the World Is Not Ready

The United States, historically the single largest external funder of Ebola outbreak response, officially withdrew from the WHO in January 2026.

In the 2021 DRC outbreak, the US provided over $11.5 million through USAID to support response efforts. That is no longer available.

The WHO released $500,000 to support the current outbreak response; Africa CDC mobilised $2 million and immediately flagged it as a fraction of what was urgently needed.

On the ground, active armed conflict in Ituri complicates containment. A sprawling network of informal healthcare facilities makes contact tracing extremely difficult, and Africa CDC has flagged that the region has no domestic capacity to manufacture personal protective equipment.

The WHO is already operating with a 25% funding gap for its 2026–2027 budget, without its largest financial backer, and in the middle of a leadership transition.

Experts have warned for years that COVID-19 would not be the last major infectious disease crisis of our lifetimes.

The conditions driving outbreaks are getting worse. The systems meant to stop them are getting weaker. That gap is precisely what the world should be afraid of.