How do you make a universal flu vaccine? A microbiologist explains the challenges, and how mRNA could offer a promising solution
- Written by Deborah Fuller, Professor of Microbiology, School of Medicine, University of Washington

To everything there is a season, and for the flu, it’s wintertime. Flu cases peak between December and February, and the flu vaccine is your best defense. Getting the vaccine means you will be less sick even if you get a...