The variant is known as influenza A subtype H3N2 subclade K–sometimes called “subclade K” for short—and it has been detected ...

An unexpected mutation of the influenza virus is driving up case counts abroad, and experts are concerned it could pose ...

SAN FRANCISCO (KGO) -- On Dec. 31, UCSF'S Dr. Charles Chiu and his colleagues were in a lab when they found what they are calling"L-452R," a California variant of COVID-19. "We actually discovered ...

"It's the biggest experiment that's ever happened." In a stunningly short period of time, the delta variant has changed the course of the COVID-19 pandemic by evolving to become more transmissible ...

A seasonal flu virus suddenly mutated in the summer. It appears to evade some of our immunity, has kick-started a flu season ...

The Centers for Disease Control and Prevention listed the COVID-19 delta variant as one of its "variants of concern" (VOCs) on June 15. According to the CDC, VOCs can be more contagious, more ...

A more severe type of flu is set to wreak havoc on the NHS this winter, with infections circulating at a rate not typically ...

A variant strain of the coronavirus, one that was first discovered in the United Kingdom, is now the dominant strain of the virus circulating throughout the United States, CDC Director Rochelle ...

Expert David Hui says extended flu season compounded by cold snap, adding city should study if it could become perennial, as ...