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(CNN) - The number of states reporting widespread seasonal flu activity jumped from 10 to 25 last week, the Centers for Disease Control and Prevention said Friday.
Widespread activity was reported in Alabama, Alaska, Arkansas, Colorado, Connecticut, Georgia, Idaho, Illinois, Indiana, Kansas, Louisiana, Massachusetts, Minnesota, Nebraska, Nevada, New York, North Carolina, Oklahoma, Oregon, Pennsylvania, Texas, Utah, Virginia, Washington state and Wyoming, according to the CDC's weekly flu advisory report, covering the week ending December 28.