Some viruses mutate more rapidly than others. Learn more about why that is and what that means for your health.

A 13-year-old girl in British Columbia who was hospitalized with bird flu for several weeks late last year harbored a mutated version of the virus, according to a report published this week in the New ...

Researchers at the Icahn School of Medicine at Mount Sinai and collaborators have created the most comprehensive map to date ...

Flu vaccines are crucial tools in protecting public health by reducing the risk of influenza illness and its complications.

US health secretary Robert F. Kennedy Jr. has announced he is canceling US $500 million (£374 million) of research into mRNA vaccines, citing unproven concerns about their safety and long-term effects ...

H5N1 bird flu has infected growing numbers of people worldwide in recent years, but this week saw something new: the first ...