Regardless of that shift, experts say vaccine uptake may not look much different from that of the bivalent boosters. Pandemic fatigue, confusionFatigue over the pandemic and the general belief that Covid is "over" could potentially hinder the uptake of new shots this fall, experts said. Ipsos and Axios released a survey with similar findings in May, the same month the U.S. ended the national Covid public health emergency amid a downward trend in cases, hospitalizations and deaths. "That contrasts with what we've seen in the past where there are different vaccines, different timing, different age groups and something new to consider every few months." Advisors to the FDA have raised concerns about shifting to yearly Covid vaccines, noting that it's unclear if the virus is seasonal like the flu.

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