People Who Got Boosters More Likely to Get COVID Than Unvaccinated

People vaccinated with the COVID-19 boosters in 2023-2024 were more likely to get COVID-19 than their unvaccinated counterparts, according to a study published last week in the Annals of Internal Medicine.

The study, conducted through the U.S. Veterans Health Administration (VHA), analyzed data from VHA’s comprehensive electronic health record system to compare outcomes between people who had received the booster and those who hadn’t.

The researchers found that vaccine efficacy against COVID-19 infection was -3.26%, indicating “a statistically significant higher infection rate in vaccinated individuals compared to the unvaccinated control group,” according to Nicolas Hulscher, who first reported the study on Substack.