Norovirus causes an average of 900 deaths annually mostly among older adults, 109,000 hospitalizations, and 19 million to 21 million cases in the U.S. each year.

Norovirus GII.17 accounted for < 10% of outbreaks in the US 2022-23 season, but rose to 75% during the 2024-25 season, passing the number of GII.4 outbreaks.

In England, norovirus reports reached levels more than double recent seasons. GII.17 was the most frequently reported genotype of norovirus through April, far above GII.4.

Vaxart, Inc., a biotechnology company focused on oral recombinant pill vaccines, announced it will release topline data from its Phase I trial on norovirus before the market opens on June 11, 2025.

State officials are urging residents to wash their hands and take other precautions as New Jersey experiences a surge of the highly contagious norovirus. It's part of a national phenomenon, with ...

Reality: "We hear about norovirus on cruise ships because they're required to report norovirus cases that exceed a threshold of three percent of passengers and crew, which is actually rare," says ...

Viral infections are illnesses caused by a virus rather than bacteria or fungi. Many viral infections can cause skin rashes, called exanthems. Most clear up on their own, but some require medication.