Full CoverageCovid: First data points to Omicron re-infection risk
By James Gallagher
Coronavirus: Covid News: F.D.A. Authorizes Eli Lilly Antibody Treatment for Youngest Covid Patients (Published 2021)
By Apoorva Mandavilli, Rebecca Robbins & Pam Belluck
WHO says Covid omicron variant detected in 38 countries, early data suggests it's more contagious than delta
By Spencer Littleford Kimball
Omicron in Europe: Where have cases of the new COVID variant been detected?
By Julie Gaubert & David Walsh
WHO's top scientist says Omicron could displace Delta
By Stephanie Nebehay & Francesco Guarascio