More than three-quarters of American adults didn’t get a covid shot last season, a figure that health care experts warn could rise this year amid new U.S. government recommendations.

The covid vaccine was initially popular. About 75% of Americans had received at least one dose of the first versions of the vaccine by early 2022, Centers for Disease Control and Prevention data shows. But only about 23% of American adults got a covid shot during the 2024-25 virus season, well below the 47% of American adults who got a flu shot. The vaccination rates for flu, measles, and tetanus are also going down.

Yet covid remains a serious, potentially deadly health risk, listed as the primary cause of death on roughly 31,400 death certificates last year. By comparison, flu killed about 6,500 people and

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