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Omicron’s Radical Evolution
New York Times
Thirteen of Omicron’s mutations should have hurt the variant’s chances of survival. Instead, they worked together to make it thrive.
Rich Countries Lure Health Workers From Low-Income Nations to Fight Shortages
New York Times
Huge pay incentives and immigration fast-tracks are leading many to leave countries whose health systems urgently need their expertise.

With Some Voters ‘Ready to Move On,’ Democrats Search for New Message on Virus
New York Times
When the coronavirus pandemic first swept Pennsylvania, Gov. Tom Wolf closed stores and schools and ordered millions of citizens to stay home. Even four months into the crisis in 2020, all but “life-sustaining” businesses in much of the state were locked down.
Pfizer and BioNTech announce plans to test omicron-specific COVID-19 vaccine in adult trials
USA Today
Vaccine makers Pfizer and BioNTech announced plans early Tuesday to test an omicron-specific COVID-19 vaccine in people. The companies will run three simultaneous trials in adults ages 18-55 to determine if an omicron-specific vaccine is more effective than current shots.