The second wave of the swine flu pandemic is now under way in the northern hemisphere. Case numbers are climbing fast and in some places vaccination has begun. But the virus hasn't evolved into the monster that some feared. Were all those pandemic warnings just scare-mongering?
So far, H1N1 swine flu virus hasn’t been as deadly as many experts feared. This might be because we’ve only experienced the “spring wave” of influenza that foreshadows a more devastating stage in the fall. After analyzing 15 pandemics over 500 years, researchers say the pattern doesn’t hold up.
This map and the data behind it were compiled by Dr. Henry Niman, a biomedical researcher in Pittsburgh, Pennsylvania, using technology provided by Rhiza Labs and Google. The map is compiled using data from official sources, news reports and user-contributions and updated multiple times per day.