The Washington Post (3/18, Shepherd) reported “the coronavirus vaccines most widely used in the United States remained highly effective at preventing the worst outcomes from infections even in the face of the highly transmissible Omicron variant in January,” according to a CDC study. Although “protection against mild illness waned over time, the mRNA vaccines from Moderna and Pfizer-BioNTech provided a robust shield against death and needing mechanical ventilation, the study…found.”