It was a good but bizarre day when the CDC finally reversed itself fundamentally on its messaging for two-and-a-half years. The source is the MMWR report of August 11, 2022. The title alone shows just how deeply the about-face was buried: Summary of Guidance for Minimizing the Impact of COVID-19 on Individual Persons, Communities, and Health Care Systems — United States, August 2022.
A study by the Centers for Disease Control and Prevention released on Wednesday shows that those who have recovered from COVID-19 have more protection against infection than those who have only been vaccinated.
High levels of T-cells from common cold coronaviruses can provide protection against COVID-19, an Imperial College London study published on Monday has found, which could inform approaches for second-generation vaccines.