omicron

New COVID strain is more transmissible

New Moderna vaccine tailored to omicron variant approved in United Kingdom

Some should get boosted now and wait longer for revamped COVID-19 vaccine: expert

Studies suggest CDC COVID-19 isolation guidance too short

White House confirms Biden has BA.5 subvariant

Health expert theorizes how to tackle future COVID-19 variants

Omicron variant BA.5 is so contagious 'an elevator ride' is enough time for potential infection: expert

Doctor says BA.4 and BA.5 are ‘the most contagious’ variants yet

Immune-evasive COVID-19 variants remain a concern: medical expert

Predicting next COVID surge is matter of 'when' not 'if', health expert warns