FactCheck.org

Ramiro Guzman receives an omicron-updated COVID-19 booster in Chicago. Photo by Scott Olson/Getty Images. Moderna also challenged, or intentionally infected, vaccinated and boosted mice with BA.5 and found animals who received the bivalent BA.4/5 booster were better protected in their lungs than those boosted with the original vaccine. An unpublished study posted as a preprint following … Read more