Experts explain why this particular strain is more likely to overcome immunity from vaccination or previous infection.

A WHO-appointed expert group released its final report on the origins of COVID-19, saying there is still no definitive answer. Most scientific evidence supports animal-to-human transmission, but a lab ...

A heavily mutated COVID-19 variant called "Cicada" has caught the attention of public health experts, who warn that the ...

It "hasn't been classified by anyone, including the CDC, as a so-called high-concern variant," Dr. Gregory Buller said.

Add Yahoo as a preferred source to see more of our stories on Google. Although Covid-19 is circulating a very low level right ...

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

A Chinese virologist is hiding in the US in fear that Beijing wants revenge for her spreading theories that the COVID-19 virus originated in a lab, a new report said. Dr. Li-Meng Yan left her family ...

MRNA COVID-19 vaccination and cancer risk are examined in a case report and review that explores a reported temporal ...