Rates of norovirus in that CDC system have reached levels at or above last season's peak in all regions of the country. Norovirus test positivity rates look to be the worst in the Midwest, in a grouping of states spanning Kansas through Michigan.

If you're ill with the "stomach flu," you're not alone. Norovirus is surging across Arizona, is highly contagious and spreads rapidly.

Norovirus cases are significantly increasing in the US and Canada. Moderna is developing an mRNA-based vaccine, currently in Phase 3 clinical trials, with the potential to be the first approved Norovirus vaccine by 2026.

Moderna is testing a norovirus vaccine in a phase three trial. Results could be available as soon as this year.

New CDC data indicates a rise in cases of norovirus, often colloquially referred to as "stomach flu." Test positivity has spiked.

Also known as the "stomach bug" or "stomach flu," norovirus causes acute gastroenteritis, the CDC said, inflaming the stomach or intestines. Each year on average, norovirus is the attributed cause for 900 deaths in the United States, mostly in individuals 65 years of age or older.

No. Hand sanitizer is simply not as effective against norovirus as it at killing other pathogens due to the virus's firm shell, Dr. William Schaffner, professor of infectious diseases at Vanderbilt University Medical Center, told TODAY.com recently.

The U.S. is seeing a "quad-demic" as cases of COVID-19, flu, RSV and norovirus spread at the same time. Experts said this is what you need to know.

First came the fires. Then, there was ash and contaminated water. Now, some survivors of the Southern California wildfires are dealing with outbreaks of norovirus and other stomach ailments at a shelter set up to help evacuees.

MedStar Health Urgent Care in our region is experiencing an uptick in norovirus across its 33 clinics, says its spokesperson. Norovirus is highly contagious, spreading easily from person to person on contaminated surfaces, in food and water, and can be airborne.

The virus spreads easily and quickly through contaminated food and water. Cases often spike each year as people gather with family and friends during the holidays.

Multiple norovirus outbreaks have been reported in Chicago during the month of January, the Chicago Department of Public Health confirmed this week.