Flu cases are rising rapidly across the US due to a new strain called subclade K, a mutated form of the H3N2 influenza A ...

The CDC estimated there have been at least 7.5 million illnesses in the U.S., 81,000 hospitalizations and 3,100 deaths from ...

CDC releases latest numbers on flu outbreak across the US. New cases are accelerating - and hospitalizations are up. Read on ...

A highly contagious flu mutation called subclade K is sweeping the nation, raising health concerns about vaccine ...

Subclade K has become the dominant form of flu and is slightly different from the virus targeted by this year’s flu vaccine.

A variant of influenza A, H3N2, is spreading across the U.S., with low vaccination rates contributing to infection rates.

The Centers for Disease Control and Prevention reports flu activity is now high or very high in more than half of U.S. states ...

Hospitals in the Bay Area are reporting more "influenza-like illness," pointing to a mutation in the strain. Medical experts ...

There are some unusual symptoms being reported with a new and mutated flu variant quickly spreading in the U.S. ahead of ...

Much of the concern this flu season is coming from the spread of subclade K, a subtype of influenza A. Similar subtypes have ...

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 ...