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.

The CDC's interim VE analysis included data from 142,494 people in three surveillance networks. In outpatient settings, 26% to 32% of adults who tested positive for flu were vaccinated, compared with ...

After the U.S. withdrew from the World Health Organization, it wasn't clear they would participate in this WHO-led meeting to determine the recipe... Despite U.S. pull out from WHO, reps were ...

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 ...

A single spritz could eventually offer simultaneous protection against several infectious diseases. Researchers at Stanford Medicine have developed a new vaccine that could prevent multiple viruses at ...

Scientists at Stanford Medicine have unveiled a bold new kind of “universal” vaccine that could one day protect against everything from COVID-19 and the flu to bacterial pneumonia and even common ...

Kendra Pierre-Louis: For Scientific American’s Science Quickly, I’m Kendra Pierre-Louis, in for Rachel Feltman. You’re listening to our weekly science news roundup. Let’s start off with a vaccine 180.

Health Secretary Robert F. Kennedy Jr. has spent years campaigning against vaccines, but with the flu shot, he’s suggested it’s personal. Kennedy has linked his strained, raspy speech to the vaccine, ...