The inconvenient truths about the Ebola crisis

For weeks, the latest Ebola outbreak in Central Africa was seen as a regional emergency. But now there is mounting evidence that the outbreak may be broader, more fragmented and entrenched than initially believed. On Saturday, WHO Director-General Tedros Adhanom Ghebreyesus visited Bunia in the Democratic Republic of Congo, where the virus is spreading faster than the response.

The crisis is centered in eastern Congo, with spillovers into Uganda and rising concern across neighboring countries. Official numbers remain uncertain because surveillance systems in conflict zones are incomplete.

The outbreak circulated for weeks, perhaps longer, before it was fully recognized. By the time authorities moved aggressively, transmission chains may have spread across borders, refugee corridors and informal trade networks.

The danger does not lie primarily in the current number of cases, which is far lower than COVID-19 or the 2014-16 Ebola outbreak in West Africa.

The danger is that the present crisis is unfolding under unusually adverse conditions: war, displacement, urbanization, weak public health systems, declining international aid capacity and growing mistrust of authorities.

"Never before has an Ebola outbreak recorded so many cases so soon after its declaration," the medical charity Médecins Sans Frontières has warned.

Historically, Ebola outbreaks have remained geographically concentrated. Although the virus is highly lethal, it is relatively difficult to transmit compared with airborne respiratory diseases.

Eastern Congo is one of the most difficult environments in the world for epidemic control. Armed militias, population displacement and attacks on medical facilities undermine contact tracing and isolation efforts. Informal border crossings are extensive.

Urban growth has accelerated faster than health infrastructure. In some affected regions, public trust in government and foreign health interventions is extremely weak.

Moreover, the current outbreak involves the Bundibugyo strain of Ebola, for which no fully established licensed vaccine exists comparable to those deployed against the Zaire strain during previous outbreaks. That sharply complicates containment.

One of the least understood aspects of the present outbreak concerns contagion linkages beyond immediate epidemiology. Let's start with physical contagion networks. Eastern Africa's transport corridors increasingly connect local outbreaks to regional and global mobility systems.

Cities like Kampala, Kigali and Nairobi are no longer isolated peripheral centers. They are integrated into international aviation and trade flows linking Africa to the Gulf, Europe and Asia.

Then comes the institutional contagion effect. Fragile health systems already weakened by debt burdens, inflation and post-pandemic exhaustion are struggling to absorb another major shock, particularly in sub-Saharan Africa.

The psychological and economic contagion adds to the problem. Financial markets, tourism flows, commodity exports and investment patterns can react violently even to limited outbreaks if fears of wider transmission intensify. The 2014-16 Ebola crisis demonstrated how panic itself can generate severe economic damage regardless of the actual epidemiological scale.

Finally, geopolitical contagion can be devastating. In a fragmented multipolar world, global health crises increasingly intersect with strategic competition, sanctions, debt restructuring and security concerns. Epidemics no longer operate outside geopolitics; they amplify it.

One of the most consequential dimensions of the current Ebola crisis concerns the partial retreat of the US and Western international health support over recent years.

US funding cuts and shifting priorities have weakened several pillars of global epidemic preparedness, including surveillance systems, laboratory support, emergency logistics and NGO operations across vulnerable regions. The abrupt manner in which these cuts were executed compounded the negative effects.

The retreat of preventive international health capacity increases the probability of far costlier future global emergencies.

The first and most likely scenario is a severe but regionally contained epidemic. The outbreak could produce thousands or even tens of thousands of cases regionally, while devastating local economies and healthcare systems.

In this case, intensified international response efforts eventually stabilize transmission through traditional Ebola control measures: isolation, tracing, border monitoring and behavioral adaptation. For now, this is the most likely scenario.

The second scenario involves a wider multinational African epidemic. This becomes plausible if transmission becomes embedded along mobility corridors linking Congo, Uganda, Rwanda, Kenya, Tanzania and beyond. Refugee flows, mining routes and informal commerce networks could facilitate wider regional spread.

In this case, Ebola would remain primarily an African crisis, but one with major global economic, humanitarian and geopolitical repercussions.

The third scenario — a true global pandemic transition — remains unlikely but cannot be dismissed entirely. Sustained international spread would likely require repeated exportation into major cities combined with failures in hospital containment and perhaps viral adaptation toward easier transmission.

There is currently no evidence of such adaptation. Nevertheless, prolonged uncontrolled transmission increases evolutionary opportunities and magnifies systemic risk.

The failure to contain the Ebola crisis in its early stages suggests that the lessons of the COVID-19 pandemic have not been learned. The present Ebola crisis has not become a global pandemic threat comparable to COVID-19, and public health officials hope it will remain regionally concentrated despite severe humanitarian consequences.

However, the world today is less institutionally cohesive, less politically cooperative and less strategically prepared for transnational crises than it was just a decade ago.

Pandemic fatigue, geopolitical rivalry and fiscal retrenchment have weakened the mechanisms needed for early containment.

Infectious disease containment operates on a simple principle: outbreaks are cheapest to stop at the periphery.

Once they reach major urban systems and international mobility corridors, costs rise exponentially. It is a rule the international community can ignore at its peril.

The author is the founder of Difference Group and has served at the India, China and America Institute (USA), Shanghai Institutes for International Studies (China) and the EU Center (Singapore).

The views don't necessarily represent those of China Daily.

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