
"Study: Latest Covid Vaccine Shows 54% Effectiveness Against Symptomatic Infection"
New data from the CDC suggests that the most recent Covid-19 booster provides about 54% protection against infection, with similar effectiveness against the targeted XBB.1.5 strain and the dominant JN.1 subvariant. Vaccine effectiveness was 58% for those tested 7-59 days after receiving the shot and 49% for those tested 60-119 days after. Waning effectiveness over time is expected, but the updated vaccine still offers significant protection, especially for high-risk individuals. Experts compare the efficacy to flu vaccines and emphasize the importance of getting the latest vaccine version, particularly for those at highest risk.









