Featured in delta variant
The ‘Deltacron’ COVID variant almost certainly doesn’t exist
Data errors probably explain signs of a hybrid Delta-Omicron variant.
Here’s more evidence that vaccines help against Omicron
What we learned about the new variant over the last few weeks.
Why it’s so hard to make quick, accurate estimates on new COVID variants
A national sequencing bias likely led to an overestimate of the true prevalence of Omicron.
Omicron isn’t overtaking Delta as quickly as the CDC thought—and that’s bad news
Omicron is not infecting people at the rate officials thought.
It’s too early to dismiss Omicron as a mild COVID variant
With more people vaccinated, estimating Omicron's severity is an incredibly difficult task.
There’s a new Delta variant. Here’s why you shouldn’t panic.
It’s a little more transmissible, but not a great cause of concern, yet.
Mixing and matching COVID-19 vaccines could provide superior immunity
The approach could prompt a powerful immune response.
4 important question about COVID booster shots, answered
Many newer lineages of SARS-CoV-2 have various mutations affecting the spike-shaped protein on the surface of the virus.
The COVID-19 delta variant is almost as contagious as chickenpox
The delta variant is changing the equation when it comes to transmissibility.