They brought together groups of participants in a hotel room, mixing people with active influenza infections, referred to as donors, with uninfected volunteers, referred to as recipients. The aim was ...

A rare human challenge-style trial shows that even with poor ventilation and prolonged exposure, influenza may fail to spread unless viral shedding, host susceptibility, and air dynamics align just ...

With an aggressive new strain spreading across the country, this year’s flu season has been marked by record-high hospitalizations and reportedly intense symptoms. As people look for ways to contain ...

ATLANTA — As an especially harsh flu season remains in full swing, much of the country will be huddling indoors this week as blasts of arctic air settle in across the eastern half of the United States ...

The assumption that individuals infected with influenza viruses automatically transmit the infection to others by sharing the same indoor space appears to be flawed. A new US study showed that ...

As potentially deadly avian influenza (H5N1) continues its global spread, moving from birds into mammals and in rare cases ...

Cases of the flu continue to mount, with health officials recently recording the first pediatric flu-related deaths of the season, but some states are seeing much higher activity than others.

In the first quarter of 2026, the World Health Organization (WHO) has tracked 13 avian and swine influenza cases in people, ...