impact is assistant profess of public administra at california state university dominguez hills, flynn wyn pragernice to have you. >> great to be here. >> it's fascinating. you have done a lot of research on this particular economic impact of the flu. first of all tell me what you are se so far. because it seems to be a worse than expected flu season. >> the current data suggests it is a worse than normal season although it's still very early days and we don't have the best data from cdc yet to fully understand wha do you use when putting together your model? what are the key factors that you use to kind of indicate what the economic impact is going to be? >> well, the first two factors that we look at are work productivity in terms of reduced work force participation. and the second is medical expenditures and both of those are important in regular flu seasons. one thing our study looked at in addition is mafrl responses meaning the ways in which people change their regular routine, whether that's pulling kids out of school because of infection not attending work because of infection, caring for