Omi̇cron
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World
Hong Kong’s ‘zero-Covid’ policy hurts its service sector, and other Asia virus news.
For nearly two years, some businesses owners in Hong Kong felt confident that they had weathered the worst of the…
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Health
Omicron’s Radical Evolution
As nurses and doctors struggle with a record-breaking wave of Omicron cases, evolutionary biologists are engaged in a struggle of…
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World
A fourth shot may not offer much more protection against catching Omicron, an early Israeli study suggests.
JERUSALEM — Preliminary results from a small Israeli study examining the effects of a fourth coronavirus vaccine dose suggest that…
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World
Omicron reaches Beijing, three weeks before the Olympics begin.
Officials in Beijing have reported the city’s first case of the Omicron variant, prompting authorities to order an immediate lockdown…
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Health
Can Omicron Cause Long Covid?
Many public health officials have taken heart in early evidence that suggests infections from the Omicron variant tend to cause…
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Health
In Sewage, Clues to Omicron’s Surge
As the highly contagious Omicron variant pushes national coronavirus case numbers to record highs and sends hospitals across the country…
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World
Omicron Deepens Uncertainty Surrounding Beijing Olympics
The Winter Olympics are three weeks away, but tickets have yet to go on sale. Airlines are shifting schedules, creating…
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World
Your Wednesday Briefing: Omicron in Europe
We’re covering the “tidal wave” of the Omicron variant in Europe and reactions to U.S.-Russia talks in Ukraine. “For countries…
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Health
For Coronavirus Testing, the Nose May Not Always Be Best
Over the past two years, diagnosing a coronavirus infection has often required probing the nose. Health care workers have inserted…
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Politics
Some Colleges Loosen Rules for a Virus That Won’t Go Away
As the Omicron surge spreads across the country, sending Covid-19 case counts to new heights and disrupting daily life, some…
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