- Roche develops new research test kits for Omicron variant
- India sees impact of Omicron blunted by vaccination, prior infections
- South Africa hit by fourth wave driven by Omicron
- Study finds mRNA vaccines provide biggest booster impact
Special Report
Pro-Trump news site inspires wave of menaceThe Gateway Pundit amplified Trump's false election claims — and 25 election workers have been targeted with violent or hostile messages citing it.
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World can't recycle its way out of plastic crisis - expertsJoin our virtual global conference
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Pictures of the year
Take a look back at the events that shaped 2021
