Pretty straightforward concept – the more searches there are for flu related terms, the more likely it is that there’s a flu outbreak occuring in that particular area. In the US only for now, it manages to track search activity by state.
What I’m curious to see however is what search activity globally was like during the SARS epidemic in 2003. My natural assumption would be that it wasn’t particularly relevant to where the outbreaks were occuring, but I suppose I could be wrong on that one…either way, for something like the flu, I can see how this would work reasonably well.
What other subjects could be tracked in this way?