Millions of individual Americans’ immune systems now recognize the virus and are primed to fight it off if they encounter omicron, or even another variant
and flights fill up, experts are trying to understand whether this return to normal can last, or if another setback is looming.
Scientists at Johns Hopkins Bloomberg School of Public Health estimate that about three out of four people in the United States will have been infected by“We know it’s a huge proportion of the population,” said Shaun Truelove, an epidemiologist and disease modeler at Johns Hopkins. “This varies a lot by location, and in some areas we expect the number infected to be closer to one in two."That means different regions or groups of people have different level of protection — and risk.
In all, the vast majority of Virginians have at least some immunity, said Bryan Lewis, a computational epidemiologist who leads University of Virginia's COVID-19 modeling team. Still, while the population is better protected, many individuals are not. Even by the most optimistic estimates for population immunity, 80 million or so Americans are still vulnerable. That's about the same as the total number of confirmed infections in the U.S. during the pandemic.Andrew Pekosz, a virus researcher at the Johns Hopkins Bloomberg School of Public Health, is concerned that people — particularly unvaccinated omicron survivors — may have a false sense of security.
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Estimated 73% of US now immune to omicron: Is that enough?The omicron wave that assaulted the U.S. this winter also bolstered its defenses. One influential model estimates that 73% of Americans are, for now, immune to omicron, the dominant variant circulating now, and that could rise to 80% by mid-March.
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Estimated 73% of US now immune to omicron: Is that enough?About half of eligible Americans have received booster shots, there have been nearly 80 million confirmed infections overall and many more infections have never been reported.
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Estimated 73% of US Now Immune to Omicron: Is That Enough?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.
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