Vaccinated at Higher Risk of COVID-19 Infection: Studies

A health care worker prepares a dose of Pfizer BioNTech COVID-19 vaccine in a file image. Ezra Acayan/Getty Images

People who have received COVID-19 vaccines are more likely to get infected than those who are unvaccinated, according to two new studies.

In one paper (pdf), from Cleveland Clinic researchers, each successive dose heightened the incidence of infection. The lowest incidence was among the unvaccinated.