There have been at least 4.6 million flu-related illnesses and 2,100 deaths so far this flu season in the U.S., according to the Centers for Disease Control and Prevention's (CDC) FluView report.
The totals have significantly increased since the previous report, which showed 3.7 million illnesses and 1,800 deaths.
Thirty-nine states are reporting widespread flu activity, and nine are reporting regional flu activity.
The overall hospitalization rate was 6.6 per 100,000 people. The prior week reported that the hospitalization rate was 5.5 per 100,000 people.