New data reveal that receiving the Omicron booster offers significantly more protection against symptomatic coronavirus infections than receiving just two doses of the original vaccine, the Centers for Disease Control and Prevention announced Tuesday (Nov. 22), coming as the White House pushes a “six-week sprint” to get Americans vaccinated before the end of the year. The data, published in CDC’s Morbidity and Mortality Weekly Report , reveal that the benefit of having a bivalent booster increase over time while...