A groundbreaking study conducted by the renowned Cleveland Clinic, ranked as the second-best hospital in the world, has found that a higher number of COVID-19 vaccine doses received increases the risk of infection with COVID-19.
The research, conducted with a large sample size within the healthcare system, capitalized on the early recognition of the need to maintain an effective workforce during the pandemic.
Participants in the trial were all Cleveland Clinic Health System employees working at any Cleveland Clinic facility in Ohio on September 12, 2022, the first day the bivalent vaccine was made accessible to staff.
The study, which has undergone peer review and has been published, stated, “The risk of COVID-19 also varied by the number of COVID-19 vaccine doses previously received. The higher the number of vaccines previously received, the higher the risk of contracting COVID-19.”
