Triple Vaccinated More Likely Than Unvaccinated to Get Symptomatic COVID-19: Study

A health care worker prepares a COVID-19 vaccine in Southfield, Mich., on Aug. 24, 2021. Emily Elconin/Getty Images

People who received two or three doses of a messenger RNA COVID-19 vaccine were more likely to contract COVID-19 with symptoms, according to a new study.

Researchers found that vaccinated people had higher odds of experiencing symptomatic COVID-19 than the unvaccinated, even if they had received a booster shot on top of a primary series.