Skip to main content
Our Work

Tabletop Exercises

The training tabletop exercises are based on a fictional scenarios and inputs. These exercises are teaching and training resources for public health and government officials.

Catastrophic Contagion logo

Catastrophic Contagion

The Johns Hopkins Center for Health Security, in partnership with WHO and the Bill & Melinda Gates Foundation, conducted Catastrophic Contagion, a pandemic tabletop exercise at the Grand Challenges Annual Meeting in Brussels, Belgium.
October 23, 2022

Learn more about Catastrophic Contagion



Event 201 logo

Event 201

The Johns Hopkins Center for Health Security in partnership with the World Economic Forum and the Bill and Melinda Gates Foundation hosted Event 201, a high-level pandemic exercise on October 18, 2019, in New York, NY. The purpose of the exercise was to illustrate the pandemic preparedness efforts, response decisions, and cooperation required from global businesses, governments, and public health leaders that the world will need to diminish the large-scale economic and societal consequences of a severe pandemic.
October 18, 2019

Learn more about Event 201



Clade X

Clade X logo

The Center hosted a pandemic tabletop exercise in Washington, D.C., in May 2018. The goal of this exercise (“Clade X”) was to illustrate high-level strategic decisions and policies that the United States and the world will need to pursue in order to diminish the consequences of a severe pandemic. It addressed a pressing current concern, present plausible solutions, and be experientially engaging.
May 15, 2018

Learn more about Clade X



Atlantic Storm

Atlantic Storm was a ministerial table-top exercise convened by the Center for Biosecurity, the Center for Transatlantic Relations of the Johns Hopkins University, and the Transatlantic Biosecurity Network. The exercise used a fictitious scenario designed to mimic a summit of transatlantic leaders forced to respond to a bioterrorist attack.
January 14, 2005

Learn more about Atlantic Storm



Dark Winter

The Dark Winter exercise portrayed a fictional scenario depicting a covert smallpox attack on US citizens. The scenario is set in 3 successive NSC meetings that take place over 2 weeks. The exercise was held at Andrews Air Force Base, Washington, DC.
June 22-23, 2001

Learn more about Dark Winter