- Nearly three-quarters of Americans have some Covid immunity, experts sayThe Guardian
- Estimated 73% of US now immune to omicron: Is that enough?Yahoo News
- An Estimated 73 Percent Of Americans Are Now Immune To OmicronMSNBC
- Estimated 73% of US now immune to omicron; DOJ takes on supply chain; Olympic figure skating final underwaySTLtoday.com
- 3 in 4 Americans have immunity from Omicron, model estimates, but the other 80 million ‘have to be very careful’Yahoo News