The H1N1 Pandemic: Mild So Far, but a Second Wave Is Possible

TIME
Thursday, Dec. 10, 2009
By Alice Park
Since early November, cases of H1N1 have continued to decline nationwide, and scientists keeping track of the numbers say that as pandemics go, 2009 H1N1 may turn out to be a mild one — at least for the time being.
The question now on health officials’ minds is: Will there be a second wave of cases in the new year? The answer depends on whom you ask. “We took an informal poll of about a dozen of some of the world’s leading experts in influenza,” Dr. Thomas Frieden, director of the Centers for Disease Control and Prevention, told reporters recently. “About half of them said, Yes, we think it’s likely that we’ll have another surge in cases. About half said, No, we think it’s not likely. And one said, Flip a coin.” (See the top 10 medical breakthroughs of 2009.)
It is an accurate reflection of how unpredictable the influenza virus can be. Although flu activity has been waning for the third week in a row, health officials warn that there are still four to five months left in the official influenza season, plenty of time for the virus to make its rounds and find new hosts. “The story of pandemics, and the story of H1N1 in general, is the story of persistent uncertainty where we never quite know what we are going to get or when,” says Dr. Irwin Redlener, director of the National Center for Disaster Preparedness at the Columbia University Mailman School of Public Health.

