Incidence of COVID-19 Infection Higher in Vaccinated Individuals: Studies

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

There is a higher incidence of COVID-19 among people who have received vaccines, 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.