The ‘Deltacron’ COVID variant almost certainly doesn’t exist By Hannah Seo / Published January 11, 2022
Why it’s so hard to make quick, accurate estimates on new COVID variants By Philip Kiefer / Published January 3, 2022
Omicron isn’t overtaking Delta as quickly as the CDC thought—and that’s bad news By Hannah Seo / Published December 29, 2021
It’s too early to dismiss Omicron as a mild COVID variant By Philip Kiefer / Published December 17, 2021
There’s a new Delta variant. Here’s why you shouldn’t panic. By Hannah Seo / Published November 2, 2021
Mixing and matching COVID-19 vaccines could provide superior immunity By Kate Baggaley / Published October 21, 2021
4 important question about COVID booster shots, answered By Kate Baggaley / Published August 19, 2021
The COVID-19 delta variant is almost as contagious as chickenpox By Sara Chodosh / Published August 13, 2021