The death toll and economic damage associated with flu highlight its role as one of the most harmful viruses in history.

Flu is rising rapidly across the U.S., driven by a new variant of the virus — and cases are expected to keep growing with ...

The new variant of Influenza A, or H3N2, has been given the nickname 'super flu.' The fast-spreading virus has caused ...

This variant exhibits several mutations that allow it to evade the immune response generated by this year’s flu vaccine. Specifically, the changes in the virus's structure—known as antigenic ...

At least 14 states and Washington, DC, are seeing high and very high levels of flu, mainly caused by a surprise new influenza ...

Louisiana ranks among the top states for flu cases nationwide, and health officials expect those numbers to remain high ...

Bird flu has been rampaging through wildlife and farm animals worldwide. Will it make the long-feared jump to humans?

Flu, COVID-19, the common cold and RSV have similarities, but they differ in their severity, contagiousness and symptoms. Vaccines are available for COVID-19, the flu and RSV. However, there is no ...

H5N1 bird flu has infected growing numbers of people worldwide in recent years, but this week saw something new: the first recorded human case of an H5N5 avian influenza virus. What is this virus and ...

The H5N1 avian influenza virus—commonly known as bird flu—has been causing outbreaks in dairy cows in the United States since March 2024. Now, scientists studying the adaptation of the avian H5N1 ...

The US Department of Health and Human Services said Thursday that it aims to accomplish within four years a scientific feat that hasn’t been achieved for the past 45: the development of a universal ...