Advisory Board December 2, 2025
A new variant of the influenza virus that is dominating in the Northern Hemisphere, along with high flu activity in the Southern Hemisphere during its winter, has experts concerned that this flu season could be severe.
Where the flu stands in the US
According to CDC, for the week ending Nov. 22, positive flu tests are up 5% nationwide and 3,264 patients were admitted to hospitals with influenza, which is an increase from the week prior. In addition, 2.5% of visits to a healthcare provider were for respiratory illnesses, which is also an increase from the week prior but still below the national baseline.
CDC estimates there have been at least 1.1 million illnesses, 11,000 hospitalizations, and 450 deaths from...







