Adhikari, B.B., Koonin, L.M., Mugambi, M.L., et al. (2018). Estimating Weekly Call Volume to a National Nurse Telephone Triage Line in an Influenza Pandemic. (Abstract only.) Health Security. 16(5):334-340.
The authors developed a Call Volume Projection Tool to estimate national call volume to Flu on Call® during an influenza pandemic. They extrapolated data from the 2009 experience of the Minnesota FluLine (during the H1N1pandemic) and applied it to a 20% attack rate, and case hospitalization rates from the 1968 and 1957 pandemics, respectively, to provide an estimated national weekly call volume.