The World Health Organization (WHO) said on Thursday that the H1N1 flu pandemic was the fastest-moving pandemic ever and that it was now pointless to count every case.
The United Nations agency, which declared an influenza pandemic on June 11, revised its requirements so that national health authorities need only report clusters of severe cases or deaths caused by the new virus or unusual clinical patterns.
Normal flus can move too fast to count, too. The difference is a lot of people never report or go to the doctor. This ancestor of the Spanish flu is worth keeping an eye on, don't get me wrong, but we've seen nothing from it to this point that makes it panic worthy.