For a second time this season, at least 41 states are reporting high or very high levels of the flu. Here's how to stay safe.

Flu A and flu B are two different strains of influenza, explains Thomas Russo, M.D., professor and chief of infectious ...

Schools across the United States are closing temporarily due to surges of flu and other seasonal illnesses among students and ...

Flu, RSV and other respiratory illnesses are sending people to urgent care and emergency rooms. In some cases, these patients ...

Vaccination rates were, however, only “moderate” – not because Americans saw vaccination as problematic, but because they did not see influenza as a threat. Nearly 40 years had dulled memories of the ...

Researchers have a new hope for preventing severe illness from the bird flu after finding a groundbreaking antibody treatment ...

While flu viruses are detected year-round in the U.S., the virus activity usually peaks between December and February. Flu ...

A Massachusetts biopharma giant is at the center of preparations already underway if bird flu mutates and begins to find ...

Many nursing home residents are refusing COVID shots this winter, though flu vaccine penetration has remained strong historically.

During the COVID pandemic, RSV showed a slightly odd pattern: like flu, it basically disappeared in the 2020–2021 season, ...

Flu, RSV, and other respiratory illnesses are sending people to urgent care and emergency rooms. In some cases, these ...

It feels like everyone is sick right now. And while that is a slight exaggeration, the real situation isn’t too sunny either.