Ebola Outran Congo’s Contact Lists and Reached Nairobi

Congo’s Health Ministry counted 8,665 confirmed Ebola cases and 4,178 deaths on Oct. 7, with North Kivu now producing nearly 40 percent of new infections. The national file still names Ituri as the centre of the outbreak. The infections that keep arriving are the ones no contact list ever held.

A Kenyan man who had been ill in Congo for about a month passed airport checks in Nairobi on Oct. 3 and died two nights later. He had not been named as a contact. That is what this outbreak looks like once it leaves the map responders still use.

Nearly 40 Percent of New Cases Now Come From North Kivu

Doctors Without Borders said North Kivu’s share of newly confirmed infections rose from 24 percent at the end of August to nearly 40 percent of new cases. The province’s case fatality rate is 58 percent, the highest among the seven provinces with confirmed Bundibugyo virus disease. Health Ministry figures showed that in nine of the 17 affected North Kivu zones, more than half of patients with confirmed infection had died.

Ituri still holds 74.8 percent of all confirmed cases since the May 15 declaration, and 11 health zones have gone 42 days with no new case. Those facts describe the outbreak the system can still see. They do not describe where new chains are forming.

The ministry’s Oct. 7 line listed 62 new confirmed cases, 30 deaths and 24 recoveries in 24 hours, with 890 people in hospital and 2,259 recoveries in all. The crude case fatality rate is 48.2 percent. Ituri remains first on the cumulative ledger. North Kivu is first on the daily one.

Le Ministre de la Santé Publique, Hygiène et Prévoyance Sociale, Dr Samuel Roger Kamba, et la Ministre d’État, Ministre des Affaires sociales, Actions humanitaires et Solidarité nationale, Ève Bazaiba Masudi, ont pris part à la réunion hebdomadaire consacrée à l’évolution de la… pic.twitter.com/r9Q7mUEQAF

— Ministère de la Santé RDC (@MinSanteRDC) October 7, 2026

Provincial counts published by the European Centre for Disease Prevention and Control, using data through Oct. 4, show how far the load has already shifted even before that ministry update.

CONFIRMED CASES BY PROVINCE AS OF OCT. 4

Those seven rows add to 8,603 confirmed cases, a day behind the ministry total. North Kivu’s 1,729 confirmed cases in North Kivu are about a fifth of the national count and already produce the larger share of new ones. South Kivu has had no new case since May 29. Sud Ubangi, on the Central African Republic border, and Dungu in Haut-Uélé, on the South Sudan line, are the newest zones on the file.

Most New Infections Never Appear on a Contact List

Africa CDC Director-General Dr. Jean Kaseya told interviewers that more than 70 percent of new cases still come from people who were not known contacts, and that at least 60 percent of deaths occur outside treatment centres. “There are so many other people who are becoming sick, who are not tested, treated, or listed,” Kaseya said.

Two percentages now travel with this outbreak, and they measure different things. Mixing them makes the response look healthier than the field.

THE TWO CONTACT RATES

• Listed follow-up: The Oct. 7 situation report put the follow-up rate among identified contacts at 80.4 percent.
• Expected volume: Kaseya said only 23 percent of the contacts responders should have found have been traced, using a benchmark of about 60 contacts per confirmed case.
• Off-list infections: More than 70 percent of new confirmed cases are still appearing in people who were never on those lists.

In late September he put the gap in round numbers: roughly 7,000 confirmed cases should have produced on the order of 420,000 contacts, and the list held about 30,000. “When the outbreak is at community level, we cannot talk about control,” he said. The 80.4 percent figure is a grade on the names already written down. The 23 percent figure is a grade on the names that should exist.

Michel Ngimba of the National Institute of Biomedical Research in Butembo said families in parts of North Kivu still have “a hard time believing the disease exists.” Some will not report a death or allow a sample from a person who died with Ebola symptoms. Others, he said, “want to arrange the funeral quickly.” Bodies of people who die of Ebola are highly contagious, and a hurried burial opens a new chain the lists will not see until someone else falls ill.

Beds Ran Out, So Neighborhood Clinics Took the Overflow

Stéphanie Hoffmann, coordinator of the MSF Ebola treatment centre in Butembo, called the ground response chaotic and short of both coordination and people. As of Sept. 28, 34 percent of confirmed patients were still being treated in ordinary health facilities because dedicated wards were full and diagnosis ran late. More than 60 percent of Ebola-related deaths, she said, still occur in the community.

It is like fighting a megafire. Multiple outbreaks are developing at the same time, with varying intensity and in different locations. As long as new hotspots continue to emerge while the virus spreads across northern North Kivu, containing the epidemic will remain extremely difficult.

Stéphanie Hoffmann, coordinator of the MSF Ebola treatment centre in Butembo

Hoffmann said local clinic staff are the ones making the daily choice: send a neighbour home to die, or take the person in and risk the ward. Until recently Butembo, a health zone of about two million people, had two Ebola treatment centres. Two more have opened. Capacity still sits far below the caseload.

MSF-SUPPORTED BEDS AROUND BUTEMBO

• Kitatumba centre: 29 beds for suspected and confirmed cases.
• Catholic University of Graben transit: 16 beds for people waiting on a diagnosis.
• Musienene transit: 5 emergency beds for suspected cases.

Fifty beds cannot absorb a provincial surge that now supplies nearly 40 percent of the country’s new confirmed infections. Hoffmann said teams are referring confirmed patients elsewhere because there is no room, which pushes infectious people back through the same communities the lists already missed. Butembo’s count dipped slightly in recent days as Beni’s rose. She said that swing can reverse in a week.

Why the Licensed Ebola Vaccine Stops at a Different Virus

The outbreak is Congo’s 17th of Ebola disease and, the World Health Organization says, the largest the country has recorded of any Ebola species. It is caused by Bundibugyo virus, not Zaire ebolavirus, the species behind the 2013-2016 West Africa epidemic and the 2018-2020 North Kivu epidemic. WHO’s outbreak notice states that there are currently no approved vaccines or specific treatments for Bundibugyo virus disease.

Ervebo, the licensed rVSV-ZEBOV shot, carries a Zaire glycoprotein. WHO has said the evidence is not strong enough to use it as a routine Bundibugyo tool, and that any use should stay inside research protocols. The two viruses cause similar illness. Their surface proteins are different enough that a shot built for one is not a program for the other. Care is supportive: fluids, organ support, isolation. Historical Bundibugyo outbreaks killed about 30 percent of patients in Uganda in 2007 and about 50 percent in Congo in 2012. This one is running at 48.2 percent nationally and 58 percent in North Kivu.

Vaccination of front-line workers has started in pockets. The Oct. 7 report said 1,333 people had been vaccinated in Bas-Uélé, and 600 doses had reached four health zones in Tshopo, with campaigns open in Makiso-Kisangani and Mangobo. That is a trial-and-worker shield, not a ring around each new North Kivu case.

A Nairobi Hospital Was the Last Stop After Three Countries

Kenya’s Health Minister Aden Duale said a Kenyan citizen who had lived in Congo for seven years fell ill about a month before he travelled. He was treated at several hospitals there, went by road through Beni on Oct. 2 to Kampala, then flew to Nairobi. He landed at Jomo Kenyatta International Airport at 1:10 p.m. on Oct. 3 on Jambojet flight 8523 and passed routine screening. A relative drove him to Nairobi Hospital, where he was isolated with fever, chills, severe fatigue, muscle pain, painful swallowing and bleeding under the skin.

Samples tested positive for Bundibugyo virus at the National Virology Reference Laboratory and at the Kenya Medical Research Institute. He died on the night of Oct. 5 and was buried on Oct. 6 under safe-burial rules. By Oct. 7, Duale said authorities were tracing 57 contacts, among them relatives, health workers, 23 other passengers and four crew. Incubation for Bundibugyo disease runs from 2 to 21 days. A month of clinic visits in Congo, a night in Kampala and an airport temperature check did not put him on anyone’s list until a private hospital did.

THE TRAVELER’S PATH

1. About a month before Oct. 3: Falls ill in Congo and is treated at several hospitals.
2. Oct. 2: Travels by road via Beni to Kampala.
3. Oct. 3, 1:10 p.m.: Lands in Nairobi, passes port-health screening, and is driven to Nairobi Hospital.
4. Night of Oct. 5: Dies in isolation after confirmatory tests.
5. Oct. 6: Kenya confirms the imported case and buries him under Ebola protocols.
6. Oct. 7: Contact tracing covers 57 people linked to the case and the flight.

In East Africa the case is already being argued as an airport and transit failure, with Uganda named because the man changed countries there after that country had closed its own outbreak. Uganda recorded 20 confirmed cases and 2 deaths and was declared clear on Aug. 27. The operational leak sits earlier. He was sick in Congo long enough to pass through hospitals in a known hot zone without being listed, and WHO still rates the risk inside Congo as very high and the risk for land neighbours as high.

Congo’s 2018 Outbreak Had a Vaccine This One Does Not

North Kivu and Ituri spent August 2018 to June 2020 inside a Zaire ebolavirus epidemic of 3,470 cases and 2,287 deaths, a 66 percent case fatality rate. Ring vaccination with rVSV-ZEBOV began eight days after that outbreak was declared. A later test-negative study found the shot was 84 percent effective against Zaire Ebola from 10 days after the dose. More than 300,000 people were vaccinated. Two antibody drugs cut deaths among patients who reached hospital in time.

This outbreak has already recorded 2.5 times as many confirmed cases as that entire two-year epidemic, in 145 days since the May 15 declaration. The World Health Organization determined on May 17 that the Bundibugyo epidemic in Congo and Uganda was a public health emergency of international concern. It is the largest Bundibugyo outbreak on record and the second-largest Ebola outbreak after West Africa in 2014-2016. The 2018 playbook assumed a licensed shot and drugs matched to the virus. This virus does not have them.

TWO NORTH KIVU OUTBREAKS

The lower national fatality rate this time is not a North Kivu story. In that province, 58 percent of confirmed patients have died, close to the 2018 figure, and a third of confirmed patients were still being nursed in ordinary wards at the end of September.

Village Teams Remain the Control Tool Still Unused

Kaseya said he cannot say when the outbreak will stop unless responders switch to a village-centered approach: local leaders in contact tracing, burials and isolation, with case-finding done where people actually live. Africa CDC has asked Congo to move faster on that model, including daily follow-up of every named contact and earlier isolation before a patient infects a household, a clinic, or a flight.

The Oct. 7 report shows the method can work where the list is complete. Eleven health zones have already reached 42 days with no new notification. Bas-Uélé has burial teams trained with the Red Cross. Katwa’s treatment centre in North Kivu has been expanded. Those are gains on the visible map.

They do not cover the share of North Kivu where Hoffmann said new hot spots open each week with little or no support, or the families Ngimba described who bury their dead before a sample is taken. WHO still advises against travel or trade bans. The Nairobi death did not require a ban to happen. It required a month in which a sick man was never a name on a list.

Disclaimer: This article is news reporting on an active outbreak of Bundibugyo virus disease and is for information only. It is not medical advice, a diagnosis, or guidance on travel, vaccination, isolation or treatment for any person. Readers who have symptoms, recent travel to affected areas, or questions about exposure should contact a qualified physician or their national public health authority before taking any action. Case counts, deaths, contact figures and outbreak status are those published by the cited health authorities as of the dates given in the piece and will change as investigations continue.