Estimated 73% of US now immune to omicron: Is that enough?

  • A customer enters a restaurant past a sign posted to the door requiring masks Wednesday, Feb. 9, 2022, in Providence, R.I. The omicron surge that’s still infecting more than 130,000 Americans every day in February 2022 will leave the nation with enough protection against the coronavirus that future spikes will likely bring much less — if any — dramatic disruption to society. (AP Photo/David Goldman, File)

  • FILE - A man walks underneath the marquee of the Alex Theatre in Glendale, Calif., which bears a message urging people to get COVID-19 vaccine booster shots, Monday, Jan. 24, 2022. The omicron wave that assaulted the United States this winter also bolstered its defenses, leaving enough protection against the coronavirus that future spikes will likely require much less — if any — dramatic disruption to society. (AP Photo/Chris Pizzello, File)

The omicron wave that assaulted the United States this winter also bolstered its defenses, leaving enough protection against the coronavirus that future spikes will likely require much less — if any — dramatic disruption to society.