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Boosted People More Likely Than Unvaccinated To Be Infected: New Study Finds – Gulf Insider

People who received a new COVID-19 vaccine booster were more likely to contract COVID-19 than people who received no COVID-19 vaccine doses, according to a new study of prisons in California.

Researchers analyzed data from 33 state prisons from January to July 2023 to try to assess the effectiveness of the bivalent shots, which were introduced in the fall of 2022.

Among 96,201 inmates with data on COVID-19 testing and vaccination, researchers identified 2,835 cases.

They found that 1,187 of the cases were among people who had received a bivalent vaccine, versus just 568 cases among the unvaccinated.

The rest were among people who received only monovalent, or old vaccines. That group was excluded from further analysis.

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While the population of bivalent recipients was higher than the unvaccinated—36,609 compared to 20,889—the rate of infection was still elevated in the bivalent group owing to nearly double the number of infections, the researchers found.

Infection rates in the group that received bivalent shots were 3.2 per cent, over the 2.7 per cent in the unvaccinated.

“The bivalent-vaccinated group had a slightly but statistically significantly higher infection rate than the unvaccinated group,” Dr. Robert Mayes of the California Correctional Healthcare Services and the other authors wrote.

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Stratifying by age, researchers found that the gap was larger in elderly inmates.

Among inmates at least 65 years old, the infection rate was 6.4 per cent among the vaccinated and 4.5 per cent among those who had not received a shot. Among inmates at least 50 years old, the rates were 4 per cent and 3 per cent, respectively.

The former was not statistically significant, researchers said.

“Further research is needed to understand the reasons behind these findings and to consider other factors, such as underlying health conditions. This study underscores the importance of developing vaccines that target residual COVID-19 infections, especially in regard to evolving COVID-19 variants,” the researchers added later.

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The study was published by the Cureus journal.

The group’s corresponding author did not respond to questions, including why they excluded vaccinated people who have not received a bivalent shot.

The group posited that the gap between the vaccinated and the unvaccinated may stem from natural immunity or the protection people have after recovering from COVID-19.

They were unable to incorporate natural immunity into their calculations. They also said inmates may not report symptoms, which could skew the results.

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ismailsesa

Works as an in-house Writer at Gulf Tech Plus and focuses on the latest smart consumer electronics. Closely follows the latest trends in consumer IoT and how it affects our daily lives. You can follow him on Facebook, Instagram & YouTube.

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