The most common symptoms are sudden onset of vomiting and watery diarrhea, although stomach cramps and pain also often occur. Some people experience fever and body aches. Symptoms usually start 12 to 48 hours after being exposed and typically last about 1 to 3 days.
Although symptoms usually only last 1 to 2 days in

Evanston’s Big Wig Tacos & Burritos linked to Norovirus Outbreak

The Evanston Health and Human Services Department is investigating a Norovirus outbreak along with Northwestern University. Investigators have learned that people reported stomach cramps, vomiting, and diarrhea after eating at Big Wig Tacos & Burritos during an event on Saturday, November 18, at which the

Health officials are warning consumers not to eat certain raw oysters harvested in Republic of Korea (ROK) due to possible norovirus contamination. The alert from the Food and Drug Administration (FDA) includes the following oysters:

Frozen raw oysters, in half shell, Individual Quick Freezing (IQF), and block form, harvested between 2/10/2022 and 2/24/2022 and between

The Hawai‘i Department of Health (DOH) Food Safety Branch is issuing an alert regarding raw oysters exported from Dai One Food Co., Ltd., Republic of Korea (ROK), which may be potentially contaminated with norovirus.

DOH notified the United States Food and Drug Administration (FDA) of five illnesses from individuals who consumed raw oyster shooters at


Restaurants and food retailers that have received shipments of oysters harvested between January 16, 2023 and February 17, 2023, from Deep Bay subarea 14-8 landfiles #0278744, #0278742, #0278741, #0278740, #1414396, #0319716, #1414456, #1414457, #1400483, #1411206, #1407063, #1408485, #0278739, #0278737, #1403139, #0278734, #1411153 and #1411195 in British Columbia, Canada.


  • Oysters harvested between January 16,

An Introduction to Norovirus

The Centers for Disease Control and Prevention (CDC) estimates that noroviruses cause nearly 21 million cases of acute gastroenteritis annually, making noroviruses the leading cause of gastroenteritis in adults in the United States. [5, 9, 13, 31]  According to a relatively recent article in the New England Journal of Medicine, 


CDC is working with the U.S. Food and Drug Administration (FDA), the Texas Department of State Health Services, along with other state and local officials to investigate a multistate norovirus outbreak linked to raw oysters from harvest area TX 1, Galveston Bay, Texas.

Restaurants and food retailers should not serve raw oysters from harvest area