As much as 20 percent of U.S. residents get the flu every year, according to the U.S. Department of Health and Human Services.
[caption id="attachment_59307" align="alignleft" width="150"] Mobile device usage on campuses could help doctors better understand flu outbreaks.[/caption]
The problem is even worse in the packed, close-knit environment that is a college campus, where one in every four students a year gets the flu.
Traditionally, campus health officials and the Center for Disease Control and Prevention have tracked flu outbreaks by monitoring the number of people being treated for...