The New England Journal of Medicine

Risk of BA.5 Infection among Persons Exposed to Previous SARS-CoV-2 Variants

In recent months, omicron (B.1.1.529) became the dominant variant of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), displaying some degree of immune evasion. 1 The initial omicron ...
Time

What to Know About BA.2, a New Omicron Variant

Even as SARS-CoV-2 gets better at spreading and evading some of the immune protection that people have built through infections or vaccination, new variants inevitably arise. That’s been the case with ...
The New York Times

‘Stealth’ Omicron Is Stealthy No More: What’s Known About the BA.2 Variant

The subvariant of Omicron is becoming more common in the United States but probably won’t cause another large spike. By Carl Zimmer As the Omicron coronavirus surge subsides, researchers are keeping ...
NBC Chicago

BA.2 Symptoms, Protection and More: What We Know as Omicron Subvariant Grows

News about the BA.2 omicron subvariant continues to grow as it becomes the dominant COVID strain not just in the Midwest but across the U.S., but what should you be watching for? Chicago's health ...