According the FluView report from the Centers for Disease Control and Prevention (CDC), flu activity is increasing in the United States. Most key flu indicators increased, including the number of people visiting doctors for influenza-like illness and the number of states reporting widespread influenza activity.
For the week ending January 1, 2011, eight states—Alabama, Arizona, Georgia, Kentucky, Louisiana, New York, North Carolina, and Virginia—have reported widespread geographic influenza activity. Puerto Rico and 16 states (Colorado, Connecticut, Florida, Illinois, Massachusetts, Mississippi, Missouri, Nevada, New Hampshire, New Jersey, Ohio, Oklahoma, Pennsylvania, South Carolina, Tennessee, and Texas) reported regional geographic influenza activity.
Although influenza activity can rise and fall during an influenza season, activity in the United States generally peaks in January or later in most years.
Source: Centers for Disease Control and Prevention