Illinois is facing a significant winter surge in seasonal respiratory illnesses with flu activity at very high levels,” said ...

Among the states with the highest levels of flu activity are Colorado, Louisiana, South Carolina, New Jersey and New York, ...

Illinois is now at "very high" levels for flu activity—a designation that coincides with the federal government's decision to ...

Most flu infections this season are from a new variant not covered by the flu shot, but doctors say the vaccine will still ...

If it feels like more people around you are sick right now, the data backs that up. A new CDC surveillance map shows ...

Flu cases are slowly rising in Illinois, coinciding with subsequently low temperatures and below zero wind chills across the state. But why do cases jump once temperatures drop? Cold weather itself ...