The following tools and models are made available voluntarily with support from a variety of funding sources.


An analytic tool (TranStat) is available to analyze data from outbreaks of acute infectious disease to test for the presence of human-to-human transmission (or animal-to-animal in veterinary settings) and to estimate epidemiologic characteristics of the disease.


A stochastic influenza epidemic simulation model (version 1.15, April 26, 2010)

Cholera simulation

A simulation model of a cholera epidemic in Haiti (version 1.0, April 6, 2011)

Global transmission of influenza

A stochastic model of influenza transmission around the globe (version 1.0, May 2, 2011)

Transmission of antiviral resistant influenza model

A model of antiviral resistant influenza transmission (version 1.0, August 24, 2011)

Dengue transmission model

A stochastic model of dengue transmission in rural Thailand (version 1.0, October 25, 2012)