DRC's neighbors fortify defenses as Ebola outbreak surges to third-largest on record

Three countries along the Democratic Republic of Congo's borders are racing to fortify their defenses against a spreading Ebola outbreak that has already claimed at least 930 lives and infected 2,344 people. Uganda, Rwanda, and Zambia have activated emergency response protocols, deployed additional screening teams at border crossings, and trained health workers to spot suspected cases—a coordinated scramble born from the recognition that what happens in the DRC's conflict-torn east does not stay there.

The outbreak, centered in Ituri province, was officially declared on May 15 and is caused by the Bundibugyo virus, a strain for which no vaccine currently exists. What makes officials most anxious is not the numbers they know but the ones they don't. The World Health Organization has warned that actual infections could be four times higher than the 2,344 confirmed cases, with many infections going undetected in areas where armed conflict has fractured health systems and displaced populations. When the WHO's director-general called this "the third-largest Ebola outbreak on record" and noted it had "expanded faster than any previous outbreak" in recent weeks, the alarm bells in neighboring capitals grew louder.

In Zambia, which has recorded no confirmed cases but shares a long border with the DRC, Dr. Naeem Dalal of the Zambia National Public Health Institute described a nationwide activation of prevention measures. Disinfection protocols are being rolled out at entry points. Face masks and mandatory hand-washing stations have been installed. Provincial emergency response centers have been activated to coordinate rapid deployment should suspected cases appear. The message is clear: assume the virus is coming and prepare accordingly.

Uganda, which has successfully contained previous Ebola outbreaks, has identified three western districts as particularly vulnerable—Kisoro, Kanungu, and Rukungiri, all of which border the DRC. Dr. Beda Senkware of Kabale Referral Hospital told Uganda National Television that the risk in these districts is "very high." Rwanda has similarly strengthened screening at border posts, expanded surveillance networks, and assembled rapid response teams ready to investigate any suspected cases within hours. The East African Community, the regional bloc encompassing these countries, has coordinated a unified response with the Africa Centres for Disease Control and Prevention and the WHO, pooling resources for laboratory testing, surveillance expansion, and emergency capacity building.

But the real obstacle to containment lies not in the neighboring countries' preparedness but in the DRC itself. Eastern Congo has been wracked by armed conflict for over a decade. Treatment centers have been burned down. Health workers have fled. People infected with Ebola, unable to access care or fearing violence at clinics, travel to other areas while contagious, seeding new clusters. Professor Aileen Marty, an infectious disease specialist at Florida International University, described the situation as "extraordinarily challenging." The virus spreads fastest where systems are weakest, where trust in institutions has collapsed, and where survival itself is uncertain.

Africa CDC Director-General Jean Kaseya has urged neighboring countries to strengthen their laboratory capacity and surveillance systems, warning that early detection is the only reliable defense against regional spread. The virus has already moved from Ituri into other parts of the DRC and across into Uganda. Without sustained investment in detection capacity, he cautioned, countries bordering the outbreak zone remain at severe risk. The WHO, meanwhile, is calling on international donors to close a funding gap of more than $400 million for the joint preparedness-and-response plan—money that will determine whether neighboring countries can maintain their vigilance or whether resources will eventually run dry.

For now, the three countries are holding the line. No cases have been confirmed in Rwanda or Zambia. Uganda has contained its cases. But health officials acknowledge that this defensive posture is temporary, a holding action until transmission in the DRC is brought under control. That outcome depends less on what happens at the borders and more on what happens in the conflict zones where the virus is spreading unchecked, where treatment is scarce, and where the next case is already being infected.