What to know about the current Ebola outbreak in Congo and Uganda

by Grace Chen

The World Health Organization (WHO) has declared the current Ebola outbreak in Congo and Uganda a public health emergency of international concern, triggering a global call for urgent funding and medical intervention. The declaration comes as health authorities struggle to contain a rare and aggressive strain of the virus that lacks the vaccines and targeted therapeutics used in previous crises.

According to the Africa Centres for Disease Control and Prevention (Africa CDC), the outbreak first emerged in Congo’s Ituri province. As of Saturday, officials reported 336 suspected cases and 88 deaths. While the vast majority of cases are concentrated within Congo, two cases have already been recorded in neighboring Uganda, raising fears of a wider regional escalation.

For medical professionals and public health officials, the primary concern is the specific identity of the pathogen. This outbreak is caused by the Bundibugyo virus, a rare variant of the Ebola disease. Unlike the more common Zaire strain, there are currently no approved vaccines or specific therapeutics for Bundibugyo, leaving clinicians to rely on supportive care to manage symptoms.

As a physician, I have seen how the “one size fits all” approach to Ebola can be dangerous. The tools that saved thousands during the 2018-2020 Kivu outbreak—specifically the Ervebo vaccine—are not effective against this variant. So the global community is essentially starting from scratch in terms of pharmaceutical prevention, making traditional containment and contact tracing the only viable lines of defense.

The implications of a global emergency declaration

A public health emergency of international concern (PHEIC) is the WHO’s highest level of alarm. Director-General Tedros Adhanom Ghebreyesus issued the declaration to mobilize international donor agencies and coordinate a cross-border response. However, the WHO has clarified that the current situation does not meet the criteria for a pandemic emergency, similar to Covid-19, and the organization currently advises against closing international borders.

The implications of a global emergency declaration
Congo and Uganda Africa

The efficacy of these declarations remains a point of contention among global health experts. During the 2024 mpox emergency in Africa, critics noted that the official declaration did not immediately translate into the rapid delivery of diagnostic tests and vaccines to the hardest-hit regions. The goal now is to avoid a similar lag in the response to the Bundibugyo virus.

Health workers dressed in protective gear begin their shift at an Ebola treatment centre in Beni, Congo, July 16, 2019. (Source: Associated Press)

Tracing the spread: From mining zones to borders

The epicenter of the crisis is the Mongwalu health zone in eastern Congo’s Ituri province, a region characterized by high-traffic mining activity. The Africa CDC reports that the virus migrated from Mongwalu to the Rwampara and Bunia health zones as infected patients sought medical care, effectively spreading the disease across three distinct health zones.

The geography of the outbreak creates a perfect storm for transmission. Bunia, the capital of Ituri province, is located near the Ugandan border. The region is plagued by instability; attacks by armed groups have displaced thousands of people over the last year, creating chaotic population movements that make contact tracing nearly impossible.

Logistical barriers further complicate the effort. Ituri is located in a remote part of the country, more than 1,000 kilometers from the capital, Kinshasa. With poor road networks and limited infrastructure, the delivery of basic medical supplies can take days or weeks, a timeframe that is often too slow when dealing with a virus of this virulence.

Understanding the Bundibugyo variant

Ebola is not a single disease but a group of viruses. While the Zaire strain has dominated nearly every outbreak in Congo since the virus was first discovered in 1976, the Bundibugyo virus is far less common. What we have is only the third time this specific variant has been reported in the region.

From Instagram — related to Associated Press, Understanding the Bundibugyo
Outbreak Event Location Cases Deaths
2007-2008 Outbreak Bundibugyo, Uganda 149 37
2012 Outbreak Isiro, Congo 57 29
Current Outbreak Congo & Uganda 336 (suspected) 88

Because there is no specific antiviral for this strain, treatment is directed entirely at the symptoms—fluid replacement, maintaining blood pressure, and treating secondary infections. Dr. Gabriel Nsakala, a professor of public health, notes that while Congo has deep institutional experience in managing Ebola, the unusual nature of this strain adds a layer of complexity to the clinical response.

Patients waiting at Butsili health centre in Beni, Congo
Patients wait outside to be treated at the Butsili health centre in Beni, eastern Congo on Saturday, October 9, 2021. (Source: Associated Press)

The funding gap and containment efforts

Containment efforts are currently focused on “safe and dignified burials,” enhanced surveillance, and the deployment of multidisciplinary teams at border crossing points. The Africa CDC has mobilized $2 million, and the WHO has released $500,000, but officials warn that these amounts are a little fraction of what is required to stop the spread.

New Ebola outbreak hits DR Congo • FRANCE 24 English

Financial instability has historically hindered these efforts. In previous years, funding cuts from the U.S. Government created gaps in the response. While the U.S. Agency for International Development provided up to $11.5 million in 2021 to support African health efforts, the current outbreak faces a precarious funding landscape that could delay the deployment of necessary resources.

Transmission and symptoms: What to watch for

The Ebola virus is highly contagious and typically jumps from wild animals to humans. Once in the human population, it spreads through direct contact with the bodily fluids of an infected person—including blood, vomit, and semen—or through contact with contaminated materials like bedding and clothing.

The progression of the disease is often rapid:

  • Early Stage: Sudden onset of fever, intense muscle pain, and extreme fatigue.
  • Intermediate Stage: Vomiting, diarrhea, and abdominal pain.
  • Advanced Stage: In severe cases, internal and external bleeding (hemorrhaging), which can lead to multi-organ failure and death.

Disclaimer: This article is for informational purposes only and does not constitute medical advice. If you suspect exposure to a viral hemorrhagic fever, contact local health authorities immediately.

The next critical milestone for the region will be the upcoming coordination review between the Africa CDC, the WHO, and the health ministries of Congo, Uganda, and South Sudan to determine if the current containment measures are reducing the rate of new infections.

Do you have questions about the regional response or the Bundibugyo variant? Share this article and join the conversation in the comments below.

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