Well, it depends on where you are. The peak may have arrived for regions like the Southeast and Northeast, but H1N1 is just starting to ramp up here out West.

We still have many months left in the typical flu season. It is entirely plausible that we'll have yet another spike of H1N1 in the winter in those regions that are peaking early.

It's interesting that NYC hasn't been hit hard yet. Some speculate that the spring go-around has built up some immunity in the population, but epidemiologists don't think that enough people were exposed last spring to explain a significant herd immunity effect. So that's another mystery from H1N1.