The programme InfluSim v. 2.1 was originally released on April 2, 2008. It allows to predict the course of an influenza epidemic in a fully susceptible population (pandemic influenza). The user can change parameter values describing the age and rick composition of the population via sliders or input fields. The following interventions are considered: treatment of cases, (partial) isolation of cases, change of contact behaviour in the population (through behavioural changes, the cancelling of events of mass gathering or the closing of day care centers and schools). The program calculates for each day of the outbreak the number of infected individuals, the influenza-related number of work days lost, the number of outpatient visits, hospitalizations and drug doses prescribed, as well as the attached costs. The simulation is based on a deterministic model wich is described by an interacting set of more than 1000 differential equations.





