Google now publish Google Flu Trends levels of all countries and regions on Google Public Data Explorer which provides visualizations feature and much more. Also, refreshed models in 13 countries and adding new regional estimates for Netherlands, Belgium, Canada, Switzerland, and Spain.
"It's important to note that the flu level is a normalized number indicating how unusually high or low our estimate of flu-related activity is in a place. Zero means business as usual. Eight means flu activity is unusually high for that country or region," explains Google.
Let's look at some of the ways these new visualizations allow us to compare flu activity across the globe:
Has the flu season started in Western Europe? There was a bit of activity in Germany and Austria at the beginning of Oct. Otherwise, there isn't much flu in that region as of this week.
On the chart below, each bubble has a size proportional to flu level for Nov'9, 2008 (-) sign indicates less flu activity than is usual. Hit "Play" button to see how flu season develops first in Northern hemisphere.
Check out how flu seasons alternate between the northern and southern hemispheres.
Click "Explore data" in any one of the charts above to go to Public Data Explorer and start exploring!