The percentage of people visiting the doctor for influenza-like illness (ILI) last week jumped from 3.8% to 4.3%, the highest of the 2018-2019 flu season, according to today’s weekly FluView update from the Centers for Disease Control and Prevention (CDC).

Though a doubling of the national baseline (2.2%), the ILI level is still much lower than last year’s peak of 7.5%, the CDC said. For the fifth consecutive week, all 10 geographic regions in the United States reported ILI levels at or above region-specific baselines.

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“For comparison purposes, over the past five flu seasons, the peak percent of visits due to ILI has ranged between 3.6% (2015-2016) and 7.5% (2017-2018),” the CDC said in its summary.

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