Category Archives: Norovirus

USA – CDC report highlights Norovirus, Salmonella and restaurants as key

New Food Magazine

The Centers for Disease Control and Prevention’s (CDC) annual Foodborne Disease Outbreak Report, published in September 2019, has provided data on the 841 foodborne disease outbreaks that occurred throughout the US in 2017, resulting in 14,481 illnesses, 827 hospitalisations, 20 deaths, and 14 food recalls. The statistics provided some eye-opening information, particularly with regards to Salmonella, the Norovirus, and restaurants.

Although Listeria was a key focus of the US Food and Drug Administration (FDA) “swabathons” in 2017, and there was a major E. coli leafy greens outbreak, the two most frequently reported confirmed causes of outbreaks and associated illnesses that year were actually Norovirus and Salmonella.

Norovirus was the cause of:

  • 140 outbreaks, 35 percent of confirmed single-pathogen outbreaks
  • 4,092 illnesses, 46 percent of confirmed single-pathogen illnesses
  • 40 hospitalisations, six percent of confirmed single-pathogen, outbreak-related hospitalisations
  • Four deaths, 20 percent of outbreak-related deaths.

Salmonella was the cause of:

  • 113 outbreaks, 29 percent of confirmed single-pathogen outbreaks
  • 3,007 illnesses, 34 percent of confirmed single-pathogen illnesses
  • 472 hospitalisations, 66 percent of confirmed single-pathogen, outbreak-related hospitalisations
  • Eight deaths, 40 percent of outbreak-related deaths.

RASFF Alert – Food Poisoning – Norovirus – Frozen Wedge Clams


RASFF – food poisoning suspected to be caused by norovirus GII in frozen wedge clams (Donax trunculus) from Turkey in Spain

USA – Cornerstone Premium Foods Voluntarily Recalls Frozen Blackberries Due to Possible Health Risk of Norovirus


Cornerstone Premium Foods of Syracuse, New York is recalling a specific lot of product containing frozen blackberries (noted below) due to the potential of being contaminated with Norovirus. FDA testing of frozen blackberries was reported to have tested positive for Norovirus.

Norovirus is a highly contagious virus. Consumption of product contaminated with Norovirus may cause acute onset of symptoms of gastroenteritis including severe nausea, vomiting and diarrhea. Less common symptoms are low-grade fever, chills, headache, muscle aches and fatigue. Although most symptoms end within 48 hours, the elderly, young children and immunocompromised persons may develop prolonged, or more severe symptoms.

No illnesses have been reported to date in connection with this recall. Impacted retailers have removed these products from store shelves. The FDA and the company continue to investigate the source of the issue.

Specific lot information is as follows:


UPC Code

Lot Number

Expiry Date

Distribution Dates

16 oz Cornerstone Frozen Blackberries 8 55104 00765 9 GC 1 1092 9 April, 2021 4/2/2019-8/7/2019

Consumers who have purchased the products are urged to destroy or urged to return them to the place of purchase for a full refund. Consumers with questions may contact Cornerstone Premium Foods at 1-800-333-0949, Monday – Friday, 8:00AM – 5:00PM EST.

This product was sold to various retailers in NY, MA, PA, ME, FL, AL, WI, CT, and WV.

Label, Cornerstone Frozen Blackberries

USA – Norovirus most common foodborne pathogen in 2017

Barf Blog

Food Borne Illness - Norovirus -CDC Photo

Image CDC

The Centers for Disease Control and Prevention (CDC) late last week released a summary of foodborne illnesses in 2017 based on an annual analysis of data from the Foodborne Disease Outbreak Surveillance System, and Norovirus was the most common pathogen reported, responsible for 46% of illnesses. Salmonella and Shiga toxin–producing Escherichia coli were also linked to a substantial number of outbreaks.  

In 2017, the CDC tracked 841 foodborne outbreaks, which included 14,481 illnesses, 827 hospitalizations, 20 deaths, and 14 food product recalls. A single etiologic agent was confirmed in 395 outbreaks (47%), which are defined as two or more related cases.

USA – Surveillance for Foodborne Disease Outbreaks, United States, 2017 Annual Report


  • Highlights
  • In 2017, 841 foodborne disease outbreaks were reported, resulting in 14,481 illnesses, 827 hospitalizations, 20 deaths, and 14 food product recalls.
  • Norovirus was the most common cause of confirmed, single-etiology outbreaks, accounting for 140 (35%) outbreaks and 4,092 (46%) illnesses. Salmonella
    was the next most common cause, accounting for 113 (29%) outbreaks and 3,007 (34%) illnesses, followed by Shiga toxin-producing Escherichia coli, which caused 19 (5%) outbreaks and 513 (6%) illnesses, and Clostridium perfringens, which
    caused 19 (5%) outbreaks and 478 (5%) illnesses.
  • Mollusks (41 outbreaks), fish (37), and chicken (23) were the most common single food categories implicated. The most outbreak associated illnesses were from turkey (609 illnesses), fruits (521), and chicken (487).
  • As reported in previous years, restaurants (489) outbreaks, 64% of outbreaks for which a single location of preparation was reported), specifically
    restaurants with sit-down dining (366, 48%), were the most commonly reported locations of food preparation associated with outbreaks.

RASFF Alert – Foodborne Outbreak Norovirus (GI, GII) – Live Oysters


RASFF – foodborne outbreak suspected to be caused by and norovirus (GI, GII) in live oysters (Crassostrea gigas) from France in Denmark

Norovirus -Ireland, Australia and the University of Alabama in Huntsville

Outbreak News Today

Nine patients and two staff with Norovirus symptoms at Limerick hospital

Health officials confirm UAH outbreak was norovirus

Norovirus outbreak hits Brisbane hospital

Visiting restrictions at Cork hospital after vomiting bug incidents 

UA Researchers Developing New, Inexpensive Method to Detect Norovirus