Cases of winter viruses in the U.S. have exploded in recent months—and soon kids may be less protected from them, thanks to new vaccine guidelines. Amid a worsening respiratory illness season, the ...

Infectious disease experts are dismayed that the monoclonal antibody against respiratory syncytial virus (RSV) for infants, widely considered a crucial advance in public health, has been downgraded on ...

This year’s flu season is shaping up to be a nasty one—driven by a new variant of the influenza virus that may be able to slip past our vaccine defenses. A mutated form of the influenza A strain H3N2 ...