It is winter, and a new strain of norovirus called GII.17[P17] is spreading across the U.S. including the northeast. MedStar Health Urgent Care in our region is experiencing an uptick in norovirus ...

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.

Between 2011 and 2024, GII.4 viruses caused less than 50% of US outbreaks each season. 2. Last year’s season started in October as a new norovirus strain, GII.17, drove a record number of outbreaks.

Increase in outbreaks of norovirus GII.17 over GII.4, United States, 2022–2025. Seasons are defined as September 1 of one year to August 31 of the next.

The NHS has shared a warning about norovirus. Cases of the bug are higher than we normally see at this time of year, according to the health agency. Norovirus, also called the winter vomiting bug, is ...

The two most common strains that are causing norovirus infections in the UK are Gll.4 and Gll.17. During the 2024/2025 season to date, Gll.17 was the most frequently identified strain, making up ...

The two most common strains that are causing norovirus infections in the UK are Gll.4 and Gll.17. During the 2024/2025 season to date, Gll.17 was the most frequently identified strain, making up ...

It said: “CDC data show a newly dominant strain is currently associated with reported norovirus outbreaks on land. Ships typically follow the pattern of land-based outbreaks, which are higher ...

New strain found on landThe CDC says the uptick in the number of cruise ship gastrointestinal outbreaks in the past few months could point to a new strain of norovirus. Outbreaks on land have seen ...

In 2024, there were 18. For comparison, just one percent of all norovirus outbreaks take place on cruise ships, per the CDC. “While the number of recent cruise ship outbreaks has been higher than in ...