Many take Evusheld as an additional layer of protection because the vaccines do not trigger a strong immune response for them.

The latest omicron subvariants could cause a surge of breakthrough infections and reinfections, a new study finds.

Omicron subvariants BQ.1 and BQ.1.1 now make up 44% of new Covid cases, compared with 32% last week, according to CDC data.

President Biden cautioned that the immunocompromised are at heightened risk this winter and should talk to their physician about precautions.