New Mexico, Texas and Nebraska are among the states with the highest number of people showing flu-like symptoms.

The map of flu activity across the United States continues to darken, both figuratively and literally, as case numbers spike ...

Schools in at least two states canceled classes at the start of this week amid a surge in influenza cases nationwide.

Nevada confirms its first human case of bird flu amid a growing U.S. outbreak impacting poultry, wildlife and the price of ...

More than 156 million chickens, ducks, turkeys and other fowl have been slaughtered across the United States since the ...

The Centers for Disease Control and Prevention resumed publishing its weekly scientific report Thursday after an ...