A long-running debate in vaccine design revolves around whether a vaccine should be optimized to prevent the virus from replicating inside an infected host or prevent the virus from transmitting to ...

As the U.S. flu season winds down, health officials say the flu vaccine didn’t work very well. It had one of its worst effectiveness rates in more than a decade.

FDA advisers recommend fall flu shot changes to include the new subclade K H3N2 variant for the 2026-27 season, improving vaccine relevance.

This season's influenza vaccine effectiveness (VE) rates against outpatient visits and hospitalizations may be lower than last season's, pushed in part by a viral mismatch between the vaccine virus ...

Practitioners nationwide are striving to do what’s best for children’s health, while staying supportive in the face of mistrust and confusion.

“Imagine getting a nasal spray in the fall months that protects you from all respiratory viruses, including COVID-19, influenza, respiratory syncytial virus, and the common cold, as well as bacterial ...

Add Yahoo as a preferred source to see more of our stories on Google. JOHANNESBURG (AP) — A concrete floor that was under construction in a building in the South African city of Johannesburg collapsed ...

It’s not just the flu spreading around the U.S. National tracking shows another respiratory virus that has no vaccine and no treatment has been on the rise. Human metapneumovirus, or HMPV, has been ...

The incident occurred at a Detroit funeral repast on Friday, Feb. 27 Raymond Boyd/Getty Multiple people were struck when gunfire unfolded during a funeral repast in Detroit on Friday, Feb. 27 At least ...

Avian influenza, also known as bird flu, has been found in Jefferson County. Birds from the flock will not enter the food system. The affected premises have been quarantined to restrict movement.

KENTUCKY, USA — Flu cases are on the rise once again this winter, and doctors say more kids are catching the virus. Overall, this is the second straight winter that medical experts say flu numbers ...

For the past week, about 50 flu scientists from around the world were crammed into a conference room at a Hilton hotel in Istanbul, Turkey. Their goal was to design a flu shot that will confer the ...