The U.S. winter virus season is in full force, and by one measure is the most intense in 15 years. One indicator of flu activity is the percentage of doctor’s office visits driven by flu-like ...

Of the 25 children who died from flu, only one was vaccinated, the state health commissioner, Dr. James V. McDonald, noted. Five were too young to be vaccinated, he said in a statement.

Moderna said Wednesday that its experimental mRNA-based seasonal flu vaccine generated a stronger immune response against four strains of the flu virus than a currently marketed vaccine in a Phase ...

Ohio State scientists engineered an antibody that may revolutionize prevention of the flu, other viruses and even non-viral diseases like cancer. The new molecule, delivered via nasal spray ...