NEW YORK — More U.S. children have died this flu season than at any time since the swine flu pandemic 15 years ago, according ...

As worries grow about the potential for a bird flu pandemic, leading virologists warn there's a rising threat from H5N1 and ...

Cases of valley fever, a fungal scourge of the arid American Southwest, appear to have hit a record high last year in California, where legislators now are calling for new screening measures to better ...