- COVID-19 boosters offer 'potent' protection against omicron, study says, recommending Pfizer and Moderna USA TODAY
- Why does omicron appear to cause less severe disease than previous variants? The Conversation UK
- Will omicron wipe out delta forever? Livescience.com
- COVID Reinfection: What To Know About Your Odds Of Getting Sick Again HuffPost
- Omicron COVID variant 105% more transmissible than Delta, French scientists find Euronews
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