- Omicron replicates 70 times faster than delta in airways, but lung infection appears less severe, study says CNBC
- Covid 19: New study provides possible answer to what makes Omicron more infectious New Zealand Herald
- Coronavirus: How Omicron’s early symptoms differ to previous strains Newshub
- Omicron by the numbers: Five things we know about the new variant The Boston Globe
- Omicron spread about 70 times quicker than Delta in human bronchial samples, a lab study found Yahoo News
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