How bad could an omicron surge get this winter? Until key questions about the new coronavirus variant are answered, it's impossible to predict its impact with certainty. Still, several teams of ...

Omicron, as the World Health Organization called the variant, swiftly overtook other forms of the virus. It remains dominant now, on its second anniversary. In the two years since its emergence ...

This is the first in a series on the Omicron variant. Here we describe the origins of Omicron. In following pieces, we will describe the specific mutations in the Omicron Spike protein and larger ...

By Melinda Wenner Moyer With the BA.2 variant, sometimes called “stealth Omicron,” driving a surge of cases in Europe, people are eager to distinguish the symptoms of Omicron from those of ...