While COVID-19 cases are down overall nationwide, the Cicada variant is quickly gaining ground, new data shows.

The "highly mutated" variant could evade the latest COVID booster shot. What to know.

The COVID-19 variant BA.3.2, nicknamed "Cicada," has been detected in at least 23 countries and half the states in the U.S.

Dr. Jay Bhattacharya objected to the study’s methodology, saying it gave an inaccurate picture of the vaccine’s benefits.

Health officials first confirmed BA.3.2 in the US from a traveler arriving from the Netherlands in June 2025, and it has ...

The acting CDC director cited concerns with the methodology, but the design has long been used to test vaccine effectiveness.

The CDC was expected last month to publish a study showing that Covid vaccines reduced the likelihood of severe illness, but ...

While the latest variant, called Cicada, carries more mutations, it’s still part of the Omicron family that emerged in 2021.

COVID-19 vaccination prevented an estimated 2.5 million deaths globally from December 2020 to October 2024. People ages 60 years and older accounted for nearly 90% of that mortality benefit. Children ...

The pandemic might be over, but new research indicates long Covid is likely to reverberate across OECD economies, costing up ...