SARS-CoV-2’s evolution

How Worried Should We Be About XBB.1.5?

January 5, 2023 · Health

After months and months of SARS-CoV-2 subvariant soup, one ingredient has emerged in the United States with a flavor pungent enough to overwhelm the rest: XBB.1.5, an Omicron…

Will We Get Omicron’d Again?

November 10, 2022 · Health

In COVID terms, the middle of last autumn looked a lot like this one. After a rough summer, SARS-CoV-2 infections were down; hospitalizations and deaths were in a…