Over 80 Percent of Americans Refused the Last COVID Booster
Over 80 Percent of Americans Refused the Last COVID Booster

By Mary Gillis

Most Americans eligible for a COVID-19 bivalent booster chose not to get it, and researchers say they now know why. 

Previous research found that over 80 percent of Americans eligible for the booster decided against it. A new survey administered between February 13 and March 29 of nearly 2,200 Arizona respondents, averaging 53 years old, revealed why those who chose to forgo the booster did so in the fall of 2022.

Those who shied away from the shot reported doing so for five main reasons. Nearly 40 percent said they had already been infected with the COVID-19 virus. Over 30 percent were concerned about vaccine side effects, and 28.6 percent felt the bivalent booster would not provide more protection than the doses they had already received. About 23 percent were either concerned about vaccine safety or believed the extra dose would not protect against a COVID-19 infection. Twelve percent said they didn’t think the booster would protect them against severe disease or death.

The new findings, published in Vaccine, are worrisome to the study’s primary author, Elizabeth Jacobs, a professor of epidemiology at the University of Arizona’s Mel and Enid Zuckerman College of Public Health with a doctorate in nutritional sciences.

“Our results indicate that many people don’t know that a booster provides additional protection even if they have already been infected or that the effectiveness of prior boosters wanes over time due to new variants,” Ms. Jacobs said in a news release.

Additional Reasons People Declined the Shot

The other less common reasons people declined the booster were that survey participants:

Additionally, myocarditis and pericarditis after COVID-19 vaccination may also occur. Myocarditis is inflammation of the heart muscle itself, while pericarditis is inflammation of the heart’s outer lining. Data show males in their late teens through early 20s are most susceptible to the condition, and it is most likely to occur after a second dose of the vaccine.

Thrombosis with thrombocytopenia syndrome (TTS) (which causes blood clots) after COVID-19 vaccination has been observed but is more closely related to the J&J COVID vaccine. The number of cases per million doses is low at just 4 in 1 million.

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