Common Questions

Who is Neil Ferguson and what did he say about the Bundibugyo Ebola outbreak?

Neil Ferguson is Director of the MRC Centre for Global Infectious Disease Analysis at Imperial College London. On 16 May 2026, he co-led an eight-person expert panel that assessed the Bundibugyo Ebola PHEIC, concluding the outbreak had likely spread undetected for several weeks or months before WHO received its signal on 5 May.Source: Imperial College London

Did Neil Ferguson predict COVID-19 lockdowns?

Ferguson's Imperial College modelling report of 16 March 2020 projected up to 500,000 UK deaths without intervention and was a primary factor in the UK and US governments adopting lockdown policies. The report was widely cited and subsequently scrutinised; its projections are debated in the epidemiology literature.

How does Imperial College model Ebola outbreak trajectories?

Imperial's MRC Centre uses Bayesian epidemic curve reconstruction and the EpiEstim R-number estimation framework, applying underreporting corrections and serial interval distributions derived from prior outbreaks. For Bundibugyo, where fewer than 10% of suspected cases had been tested at declaration, the model must correct heavily for the unknown denominator.Source: Imperial College London

Background

Neil Ferguson is Director of the MRC Centre for Global Infectious Disease Analysis at Imperial College London and Professor of Mathematical Biology. He has produced epidemic modelling analyses that directly shaped government responses across multiple outbreaks: H5N1 risk modelling in the early 2000s, the 2009 swine flu pandemic projections, and the March 2020 COVID-19 modelling report that triggered the UK and US lockdown decisions. On 16 May 2026, he co-led an eight-person Imperial expert panel that assessed the Bundibugyo PHEIC, concluding that the outbreak had "likely gone undetected and spread for several weeks or months" before WHO received its first signal.

Ferguson's modelling group is one of the two or three globally that receive early pathogen-sequencing data and WHO surveillance feeds to produce real-time projections before Emergency Committee meetings. In the Bundibugyo context, the panel's significance extends beyond the Q&A: Imperial's assessment that the undetected window was weeks to months reframes the entire case count. If 246 suspected cases represent the visible fraction of a longer-running outbreak, the epidemic curve is further along than the official count implies.

Ferguson has navigated significant institutional scrutiny following his public COVID-19 modelling in 2020, but has maintained his position as the leading voice on outbreak projection at Imperial. His involvement in the 16 May Bundibugyo panel alongside Anne Cori, both co-developers of the EpiEstim transmission estimation framework, signals that Imperial is treating this as a major outbreak warranting its most senior analytical attention.

Source Material

Ebola outbreak 2026: Q&A with experts Professor Neil Ferguson — Imperial College London

How the World Sees Them

WHO headquarters

Imperial MRC Centre analyses are cited in WHO technical assessments; the 'weeks of undetected spread' finding directly supports the PHEIC framing that the outbreak is further along than raw numbers show.

Scientific community

Ferguson's modelling has attracted both widespread reliance and significant public criticism since COVID-19; the Bundibugyo assessment should be read alongside original data, not as a standalone projection.

UK government and UKHSA

Ferguson's analyses are treated as primary inputs to COBR and SAGE-equivalent processes during PHEICs; his Bundibugyo assessment will inform UK border and screening decisions.