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

SAN FRANCISCO -- Preliminary data out of South Africa is giving the world insight into how strong omicron really is. The South African Medical Research Council just reported this variant may cause ...

A new symptom of COVID-19 is showing up in kids under age 5 who have been infected with the omicron variant. Doctors say cases of croup are on the rise. "What we're seeing with omicron is the virus is ...

The University of Waterloo's wastewater monitoring shows an Omicron subvariant has been detected in Waterloo region. The BA.2 subvariant appears to be even more transmissible than the original Omicron ...

With the latest COVID-19 variant leading to record numbers of cases worldwide, a top infectious disease expert says the virus is undergoing a major shift. Dr. Robert Redfield, the former director of ...

HOUSTON, Texas (KTRK) -- As the omicron variant makes its way through southeast Texas, we're learning more about how it's impacting people, including how quickly booster effectiveness is fading. Dr.

There’s a new name in the Covid conversation, and it comes with an unusual backstory: the ‘Cicada’ Covid variant BA.3.2. Nicknamed after an insect, famous for disappearing for years before suddenly ...

Bivalent EABR mRNA boosters broaden neutralizing responses to Omicron subvariants by promoting diverse receptor-binding domain epitope targeting, although antibody responses remain partially shaped by ...