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Oct 23, 2023 · COVID vaccines are preventive treatments that train your body to recognize and quickly fight a COVID-19 infection. This means if you’re exposed to COVID, you might not get sick or you’ll get less severely sick than you would have without vaccination.
Oct 19, 2021 · CLEVELAND – New data from Cleveland Clinic shows how effective the COVID-19 vaccine is in reducing hospitalizations. In August, researchers discovered 90% of those who were admitted were not vaccinated.
- SciCheck Digest
- Full Story
- Findings Have Multiple Possible Explanations
- Covid-19 Vaccines Reduce Infection Risk
- No Confirmed Negative Immunological Impacts from Boosters
- Sources
Numerous studies have found that additional COVID-19 shots are generally associated with extra protection against the coronavirus. Many people on social media, however, have shared a preliminary finding from a Cleveland Clinic study and misrepresented it as proving that getting more doses increases a person’s risk of infection.
COVID-19 vaccines and boosters reduce the risk of severe disease and death. They also offer some protection against infections, although the effectiveness wanes in the months after getting vaccinated, and such effectiveness is lower against the omicron variant, compared with earlier variants of the coronavirus. An observational study of more than 5...
Observational studies like the Cleveland Clinic one can turn up associations between things, but it can be difficultto assess what caused these patterns. Shrestha said the finding in his study on prior doses and infection risk “should certainly give us some pause.” But he also said that “a study like this, one study, is not going to prove any cause...
The aim of the COVID-19 vaccine program is to protect against severe disease, according to the CDC, and the vaccines are accomplishingthis. But as we’ve said, the vaccines have also provided some protection against getting sick at all. The initial clinical trials of the Pfizer/BioNTech and Modernavaccines, of course, showed a reduction in symptomat...
A more complicated question is whether vaccine doses directed at one version of the virus could eventually lead to a less optimal immune response to other variants. The theoretical concern, as we’ve explainedin past articles, is that the immune response may become too focused on an element of an older version of the virus, reducing future flexibili...
“Frequently Asked Questions about COVID-19 Vaccination.” CDC website. Updated 15 May 2023. Link-Gelles, Ruth et al. “Early Estimates of Bivalent mRNA Booster Dose Vaccine Effectiveness in Preventing Symptomatic SARS-CoV-2 Infection Attributable to Omicron BA.5– and XBB/XBB.1.5–Related Sublineages Among Immunocompetent Adults — Increasing Community ...
Apr 19, 2023 · The purpose of this study was to evaluate whether a bivalent coronavirus disease 2019 (COVID-19) vaccine protects against COVID-19. Methods. The study included employees of Cleveland Clinic in employment when the bivalent COVID-19 vaccine first became available. Cumulative incidence of COVID-19 over the following 26 weeks was examined.
Apr 19, 2023 · Abstract. Background: The purpose of this study was to evaluate whether a bivalent coronavirus disease 2019 (COVID-19) vaccine protects against COVID-19. Methods: The study included employees of Cleveland Clinic in employment when the bivalent COVID-19 vaccine first became available.
Dec 20, 2021 · An expert explains the science behind the decision. With the omicron variant driving yet another new surge of COVID-19 cases, including a rising number of breakthrough cases for fully vaccinated people, getting your third dose of the COVID-19 vaccine is more critical than ever. Advertisement.
CLEVELAND – People who are 50 and older are now eligible for a fourth dose of COVID-19 vaccine. Kimberly Giuliano, MD, is the physician lead for COVID-19 vaccine operations at Cleveland Clinic. She said the booster is designed to increase antibody response that may have waned over time.
