A new, highly mutated Covid variant is quietly spreading across the US, prompting the CDC to take notice. The variant, known as BA.3.2, first appeared in South Africa in November 2024 and scientists ...

As Covid cases rise in more than half of the United States, concerns about troubling new variants loom. "States are seeing a growing proportion of their Covid-19 cases attributed to variants," Centers ...

Scientists are keeping an eye on the new BA.2.86 lineage because it has 36 mutations that distinguish it from the ...

A new estimate from the U.S. Centers for Disease Control and Prevention shows that a COVID-19 variant that has been driving cases in China earlier this year is now the No. 1 strain in the United ...

An "underground" COVID-19 BA.3.2 variant nicknamed "Cicada" has caused an uptick in cases around the globe. It's been reported in 25 states in the U.S., including Florida. Like the insect it is ...

Earlier this year, a new variant of COVID-19 began spreading globally. Some of those infected with the new variant, nicknamed "Nimbus," reported an uncomfortable side effect known as "razor blade ...

ATLANTA, Ga. — The delta variant that’s now the dominant strain of coronavirus in the U.S. appears to be as transmissible as chickenpox, according to an internal document from the Centers for Disease ...

New variants are a "threat" to the U.S. and could reverse the recent declines in Covid-19 cases and hospitalizations, CDC Director Dr. Rochelle Walensky said Monday. "Please continue to wear a mask ...

A COVID-19 variant reported in more than two dozen other countries has been found in the United States, the Centers for Disease Control and Prevention said in a recent report. The variant, BA.3.2, was ...