Mysterious Disease in Burundi: WHO Investigates After 5 Deaths
- Health authorities in Burundi, with support from the World Health Organization (WHO), are investigating an unidentified illness that has caused five deaths and infected at least 35 people.
- According to reports from the Burundi Times, the cases have primarily appeared in household clusters, which has led investigators to consider whether the cause is a common exposure...
- Patients affected by the disease have presented with a range of severe symptoms.
Health authorities in Burundi, with support from the World Health Organization (WHO), are investigating an unidentified illness that has caused five deaths and infected at least 35 people. The outbreak is concentrated in the northern district of Mpanda, located near the border with the Democratic Republic of the Congo.
The illness was first reported in late March 2026. According to reports from the Burundi Times, the cases have primarily appeared in household clusters, which has led investigators to consider whether the cause is a common exposure or limited human-to-human transmission.
Clinical Symptoms and Patient Presentation
Patients affected by the disease have presented with a range of severe symptoms. According to WHO-supported field reports, these include:
- Fever, vomiting, and diarrhoea
- Abdominal pain and fatigue
- Jaundice
- Anaemia
- Blood in the urine
The severity of these symptoms, particularly the presence of blood in the urine and jaundice, has prompted an urgent epidemiological response to determine the exact nature of the pathogen or environmental cause.
Preliminary Testing and Exclusions
Initial laboratory efforts have focused on ruling out high-risk viral threats. Health officials and the WHO have stated that preliminary laboratory tests have ruled out Ebola, Marburg virus disease, and other major viral haemorrhagic fevers.
Despite these exclusions, the cause of the illness remains unknown. Additional testing is currently ongoing to investigate other infectious and environmental causes. Samples are being further analyzed in regional reference laboratories to reach a definitive diagnosis.
Public Health Response and Containment
The Burundi Ministry of Public Health has coordinated with the WHO to deploy rapid response teams to the Mpanda district. These teams are tasked with conducting epidemiological investigations, laboratory sampling, and contact tracing to prevent further spread of the disease.
Lydwine Baradahana, Burundi’s Minister of Public Health, visited Mpanda Hospital alongside the acting head of the WHO country office. During this visit, Baradahana confirmed that investigations are continuing with international support to identify the cause of the illness.
To mitigate the risk of a wider outbreak, health officials have strengthened surveillance in the affected northern region. Infection prevention measures have also been implemented as part of the rapid response strategy.
Current Status of the Investigation
As of April 15, 2026, the total number of reported cases stands at 35, with five confirmed deaths. The investigation remains active, with a focus on the household clusters where the illness was first identified.
The proximity of the Mpanda district to the border of the Democratic Republic of the Congo adds a layer of geographic significance to the surveillance efforts, although no specific cross-border transmission has been confirmed in the available reports.