Cicada is in the Omicron lineage and was first identified in 2024.

Learn about the rapidly spreading COVID-19 variant BA.3.2, its impact on immunity, and protective measures you can take.

COVID-19 cases were relatively low across the country for most of the summer, but they’re now creeping up again. Data shows that this is thanks to the new COVID-19 variant XFG, nicknamed Stratus, ...

COVID-19 viral activity was high in the United States during the first week of September, according to fresh data from the Centers for Disease Control and Prevention. Some regions of the United States ...

It's been less than a month since health officials reported the first known case of a new and more contagious coronavirus variant in Texas. The man, a Harris County resident, had no travel history.

A COVID-19 variant is buzzing back to life after years of flying under the radar. Nicknamed “Cicada” for its long hibernation period and noisy return, the strain is now fueling a steady rise in cases ...

A promising new COVID-19 vaccine candidate developed by researchers at the Centenary Institute and the University of Sydney has shown strong potential to protect against both current and emerging ...