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The Omicron variant is fueling record-breaking cases across the world and disrupting life. But it may not present as great a danger of hospitalization and severe illness as earlier variants. We explore why this is and what it means for the next stage of the pandemic.

Guest: Carl Zimmer, a science writer and author of the “Matter” column for The New York Times.

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Background reading: 

• New studies are providing the first indication of why the Omicron variant causes milder disease than previous versions of the coronavirus: It spares the lungs.
• The decision by U.S. health officials to shorten isolation periods for many infected with the coronavirus has drawn both tempered support and intense opposition from scientists.
• The growing consensus in nations with Omicron that the virus is moving too fast to catch is tempered by early evidence that the variant causes milder symptoms.

For more information on today’s episode, visit nytimes.com/thedaily. Transcripts of each episode will be made available by the next workday.