The Latest Breaking News from Omicron

‘Even having had Omicron, we’re not well protected from further infections,’ said Prof Danny Altmann

Experts warn of fifth wave of infections as hospital admissions rise

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?

If you're like most Americans, you've gotten your primary doses of a COVID-19 vaccine, but you haven't gotten the recommended booster shots. So if it's been several months since your last primary dose, you're probably due for a booster.

Initially, enduring COVID had one redeeming quality: It gave you some short-term immunity from getting infected again.