And in Hong Kong’s context, Omicron brought about a perfect storm. Siddharth Sridhar (@sid8998) is a clinical virologist at the department of microbiology of the University of Hong Kong.

How omicron’s mutations make it the most infectious coronavirus variant yet A unique anatomy may have fueled omicron’s dominance ...

Thirteen of Omicron’s mutations should have hurt the variant’s chances of survival. Instead, they worked together to make it thrive.

Under experimental conditions, the Omicron variant of the coronavirus survives at least twice as long on surfaces like plastic, paper and skin than the original strain that emerged from Wuhan ...

People who get infected with omicron are less likely to go to the hospital, go on a ventilator or die. But with the current huge volume of patients, hospitals are still struggling to treat them all.

Most of us will eventually get COVID but that's not an invitation to party with omicron. Here's why you might want to hang onto your mask and keep cautious a little longer.

Although reports from China about this variant's characteristics are concerning, it doesn't appear to be growing too much elsewhere in the world.

A new omicron variant is quickly spreading across the U.S. just in time for the New Year. The strain, known as XBB.1.5, accounts right now for almost 41% of confirmed COVID-19 cases nationwide ...

New research helps reveal how Omicron's mutations affect antibodies and allow the variant to escape immunity.