- Pfizer Says Booster Neutralized Omicron but Variant May Elude Two DosesThe Wall Street Journal
- Protection against Omicron coronavirus variant improves with three vaccine doses, Pfizer saysCNN
- Wall Street mixed as Omicron worries cloud vaccine updateReuters
- Pfizer: Booster dose of Covid vaccine neutralizes omicron variantCNBC Television
- Omicron vs. T cells: Why scientists are banking on the immune system’s ‘memory’NBC News