by Regenstrief Institute Credit: Pixabay/CC0 Public Domain In one of the first investigations of the effectiveness of a second mRNA booster against COVID-19 Omicron variants, a study from the U.S. Centers for Disease Control and Prevention (CDC) has found that a second booster shot significantly improved effectiveness against widespread variants Omicron BA.1 and BA.2/BA.2.12.1. With...
