At least four cattle herds in Nevada have tested positive for a strain of H5N1 bird flu never before seen in cows, state ...

After a short reprieve earlier this month, respiratory illness levels have again moved from moderate to high in Illinois, ...

Levels of influenza nationwide are now at the highest they have been since the peak of the 2009 swine flu pandemic, according ...

Outpatient health care visits for flu-like illnesses are at their highest levels in 15 years, according to data updated ...

Low vaccination rates may be contributing to the spread of flu, but data suggests the number of cases so far this season is ...

The flu can also cause a general feeling of fatigue or malaise, Ray says, as well as gastrointestinal issues like diarrhea ...

The U.S. winter virus season is in full force, and by one measure is the most intense in 15 years.

The Centers for Disease Control and Prevention lists Illinois in the high category for flu cases, and across the Chicago area ...

U.S. medical services providers are seeing the greatest numbers of flu cases since the 2009-2010 flu season, the Centers for ...

Kentucky Department for Public Health officials reported Friday that a child has died from influenza, the first for this ...

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