A cross-sectoral tabletop exercise simulating a deliberate smallpox bioterrorist attack at Fiji’s Nadi International Airport — testing preparedness across the Pacific region and globally, with mathematical modelling predicting over 1 billion vaccine doses needed if containment fails.
View Evidence Cards Back to HubThe first major exercise to explore smallpox bioterrorism through the lens of vulnerable Pacific Island nations.
In 2017, Canadian scientists synthesized horsepox virus — closely related to smallpox — using mail-order DNA and just $100,000. The experiment was undetected by any intelligence or security surveillance system. Exercise Mataika was designed in direct response to this new reality: synthetic smallpox was no longer theoretical.
Pacific Island states bear disproportionate health security burdens: weak health systems, limited diagnostic capacity, insufficient trained personnel, and significant outward migration. Fiji has 1,753 hospital beds total — by day 25 of the scenario, there were over 2,000 smallpox cases, exceeding total bed capacity.
Under worst-case conditions (50% case isolation, 50% contact tracing), mathematical modelling showed it would take more than 1 billion vaccine doses and 10 years to stop the pandemic. The WHO stockpile contained fewer than 34 million doses, with a 12–18 month production lag time.
By day 30: 500 of Fiji’s 2,800 nurses were infected, 320 dead. Of 873 doctors, 185 infected, 79 dead. The Fiji Nursing Association called a strike, demanding vaccination and PPE. Private vs. public hospital conflicts erupted over resource prioritization. The health system was in total crisis.
While the world’s attention and resources were focused on Fiji, a larger-scale attack was launched in a more populous Asian country. This “second wave” design tested whether global systems could handle simultaneous crises — they could not. Countries hoarded pledged vaccine doses for their own domestic epidemics.
In the final phase: 50% workforce absenteeism, power infrastructure failing, communications unreliable, food supplies disrupted, banking systems collapsed. Military and police dying of smallpox. The exercise concluded that the final impact was “more severe than a single nuclear strike” — meeting the definition of a Global Catastrophic Biological Risk.
A deliberate smallpox release at Fiji’s international airport, spreading globally through infected travelers.
Bioterrorists release aerosolized engineered smallpox at Fiji’s Nadi International Airport on August 1st. Hundreds of people are infected simultaneously — travelers, airport staff, and visitors. Many infected people board flights to other countries on day zero.
The first patient presents with haemorrhagic smallpox at a private hospital — the rash is atypical, making clinical diagnosis difficult. Misdiagnosed as an antibiotic reaction (mirroring the 1972 Yugoslav outbreak). Samples sent to Australia for testing. By the time variola is confirmed on Day 13, hundreds of cases have appeared.
Nadi airport closed for decontamination. International carriers cease all Fiji flights. Illegal boat travel escalates. Vaccine deployed by WHO on Day 28, but vaccinators need 7 days for vaccine take before deploying. Vaccination begins Day 40. Second attack in Asia stretches the global stockpile beyond capacity.
Critical infrastructure collapses. Mass displacement across borders. Misinformation makes accurate information impossible to distinguish. The scenario meets the definition of a Global Catastrophic Biological Risk (GCBR). Recovery starts from a lower baseline than the pre-epidemic era.
Government, defence, health, law enforcement, industry, and NGO representatives from across the Indo-Pacific and globally.
The exercise identified 10 modifiable factors within human control and 5 factors beyond control.
The most effective primary prevention. Intelligence and surveillance for planned attacks, including monitoring synthetic DNA orders, laboratory equipment trade, and genetic code. The horsepox synthesis was undetected by any surveillance system — highlighting critical gaps.
Delayed diagnosis is historically recurrent with emerging infections. Rapid point-of-care tests for smallpox must be developed. Clinical syndromic triage (rash+fever, severe respiratory illness) should trigger isolation before laboratory confirmation.
A critical 7-day delay occurred because vaccinators had to be vaccinated themselves before deploying. Recommendation: maintain a small cohort of pre-vaccinated, trained first responders who can deploy immediately to an attack.
At scale, formal public health systems cannot achieve the 60–70% case isolation rate needed. Community volunteers — including recovered patients — must be mobilized for case finding, contact tracing, and social support. This was critical during smallpox eradication.
Technology has outpaced legal frameworks. Synthetic biology is largely self-regulated. The Biological Weapons Convention focuses on nation states and is unenforceable against non-state actors. Anti-terrorism laws may need modification for biological threats.
In the endgame scenario, differentiation between accurate and inaccurate information was “impossible.” Trust in government disappeared. Legitimate communications fueled conspiracy theories. Social mobilization and transparent communication must be pre-planned, not improvised.
Exercise Mataika was followed by Pacific Eclipse (2019), which expanded the scenario to test global response.
| Exercise | Date | Focus | Key Contribution |
|---|---|---|---|
| Dark Winter | Jun 2001 | US domestic smallpox | Proved US healthcare system would fail |
| Atlantic Storm | Jan 2005 | Transatlantic smallpox | International coordination failure |
| Exercise Mataika | Aug 2018 | Pacific bioterrorism | Vulnerable nations; synthetic biology threat |
| Pacific Eclipse | Dec 2019 | Global smallpox pandemic | Vaccination delay modelling |
The exercise was named after Dr Jona Mataika (1947–1999), a renowned Fijian medical professional who pioneered filariasis programs in Fiji and the Pacific region. He served on the WHO Steering Panel on Parasitic Diseases and was awarded the Order of the British Empire in 1986. The exercise honors his legacy of regional health leadership.
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7. Global Health Security Agenda, Action Package Respond-2 framework documentation.
8. International Civil Aviation Organization (ICAO), Article 14 — Prevention of Spread of Disease.