The Latest Breaking News from Omicron

These shots are expected to serve stronger protection against new Omicron subvariant BA.5.

New Zealand has likely passed the peak of the most recent COVID-19 wave, thanks to strong hybrid immunity in the community and with the number of hospitalisations at the lower end of what was originally expected.

Do vaccines and booster shots protect against new variants? Here’s what you need to know

Fainting and fatigue may signal onset of variant, experts say

Virologists voice concerns about highly-contagious BA.2.75 which is thought to spread faster than its Omicron relatives

PHILADELPHIA — COVID cases have increased in Philadelphia about 40% over the past month — and that's without counting the scores of people testing positive at home as the latest BA.5 omicron variant surges across the country.

At West Boca Medical Center, Dr. Cory Harlow sees patients coming into the emergency department with many of the same symptoms they complained of during the early days of COVID in Florida: pneumonia, high fever and shortness of breath.

Australia’s elimination strategy during the first two years of the COVID pandemic was one of the most effective in the world. Through a combination of early border closures, widespread testing and meticulous contact tracing, localised lockdowns and mask mandates, the number of reported cases was kept to around 28,000 in…

LOS ANGELES — Will Los Angeles County impose a new mask mandate this week in response to a summer coronavirus surge fueled by ultra-contagious omicron subvariants?