Clade X
Clade X: A Global Health Security Simulation was a pandemic modelling exercise led by Johns Hopkins University's Center for [Health Security], which occurred on Tuesday, May 15, 2018, at the Mandarin Oriental Hotel in Washington, D.C. The exercise was named after a hypothetical novel virus, and simulated efforts to counter a fast-moving and deadly epidemic released on purpose by a terrorist group consisting of scientists and their rich backers wanting to reduce overpopulation. In the simulation, the hypothetical pandemic resulted in 900 million simulated deaths. The exercise was invitation-only and nearly 150 people attended.