More than a third, or 37%, said they didn't think the benefits are worth it. Another third, or 36%, said they were too busy or hadn't had time.
About a quarter said they didn't want to deal with bad side effects, while 17% said they were waiting to see if there would be a surge in their area first.
...In particular, researchers think sprays or drops given through the nose or mouth could do a better job of stopping transmission. They also hope that vaccines that target multiple parts of the virus or several variants at once could reduce the need for continuous boosters.
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