Will omicron – the new coronavirus variant of concern – be more contagious than delta? A virus evolution expert explains what researchers know and what they don't
- Written by Suresh V. Kuchipudi, Professor of Emerging Infectious Diseases, Penn State

A new variant named omicron (B.1.1.529) was reported by researchers in South Africa on Nov. 24, 2021, and designated a “variant of...