Flu cases are on the rise around the United States, according to a weekly snapshot ending Dec. 22 put out by the Centers for Disease Control and Prevention (CDC), but so far they have not reached epidemic levels.
Of the 10 regions the U.S. Health and Human Services has divided the country into, nine are reporting cases of flu-like symptoms at or above their region-specific baseline. According to the CDC, 3.3 percent of outpatient visits were for flu-like illness, which is above national baseline of 2.2 percent.
