"FluSurge is a spreadsheet-based model which provides hospital administrators and public health officials estimates of the surge in demand for hospital-based services during the next influenza pandemic. FluSurge estimates the number of hospitalizations and deaths of an influenza pandemic (whose length and virulence are determined by the user) and compares the number of persons hospitalized, the number of persons requiring ICU care, and the number of persons requiring ventilator support during a pandemic with existing hospital capacity. FluSurge 2.0 is a new version of FluSurge 1.0, which was originally released in July, 2004. With FluSurge 2.0, users can now change variables that impact estimates of the number and duration of influenza-related hospitalizations. Variables that can be altered by the user include the assumed average length of hospital stay for an influenza-related illness, and the percentage of influenza-related hospital admits that will require a bed in an Intensive Care Unit (ICU). The user can also change the total number of persons requiring hospitalization."
Centers for Disease Control: http://www.cdc.gov/