There is no firm dividing line between what is an epidemic and what is not an epidemic, but I think, when you look at a map that shows widespread influenza activity in 36 states, that we regard it -- from a common-sense perspective -- as an epidemic.  -   Julie Gerberding     Quotes
There is no firm dividing line between what is an epidemic and what is not an epidemic, but I think, when you look at a map that shows widespread influenza activity in 36 states, that we regard it -- from a common-sense perspective -- as an epidemic. Julie Gerberding