Category Archives: foodbourne outbreak

USA – Outbreak Investigation of Salmonella Typhimurium: Bright Farms Packaged Salad Greens (July 2021) -Outbreak is over

FDA

The FDA, along with CDC and state and local partners, investigated a multistate outbreak of Salmonella Typhimurium infections linked to the consumption of BrightFarms packaged salad greens produced in the firm’s Rochelle, IL facility.

FDA visited the facility and collected samples. Some environmental samples taken inside the facility tested positive for Salmonella Liverpool, but were not a match to the outbreak strain. In addition, a sample collected from an outdoor storm water drainage pond adjacent to the facility was analyzed and reported to be Salmonella Typhimurium and a genetic match to the outbreak strain.

Although no clear route of contamination was readily identified, the FDA is preparing a report to discuss findings and provide information to assist in future prevention efforts.

Recommendation

CDC has declared this outbreak to be over.

Investigation Background

On July 15, 2021, BrightFarms recalled packaged salad greens produced in its Rochelle, Illinois (Ogle County) greenhouse farm sold in Illinois, Indiana, Iowa, and Wisconsin. On July 21, 2021, Michigan was added to the list of states that received recalled products. Interview data and shopper card records show that 15 people ate or bought multiple types of BrightFarms brand salad products before they got sick, including Sunny Crunch, 50/50 Spring & Spinach, Harvest Crunch, and Butter Crisp. FDA conducted a traceback investigation and identified the farm in Rochelle, IL, as the likely source of the BrightFarms brand salad bought by people who became ill. On July 28, 2021, following positive sample results, BrightFarms expanded their recall to include Baby Spinach packaged in clear, plastic clamshells with “Best By” dates through 7/26/2021.


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Outbreak Investigation of Salmonella Typhimurium in BrightFarms Packaged Salad Greens - Product Images

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Map of U.S. Distribution of Recalled BrightFarms Products

Outbreak Investigation of Salmonella Typhimurium in BrightFarms Packaged Salad Greens - Map of U.S. Distribution of Recalled Products (October 6, 2021)

Case Count Map Provided by CDC

Outbreak Investigation of Salmonella Typhimurium in BrightFarms Packaged Salad Greens - CDC Case Count Map (October 6, 2021)

Case Counts

Total Illnesses: 31
Hospitalizations: 4
Deaths: 0
Last Illness Onset: August 18, 2021
States with Cases: IL (18), MI(1), PA (2), WI (10)
Product Distribution*: IA, IL, IN, MI, WI
*Distribution has been confirmed for states listed, but product could have been distributed further, reaching additional states

USA – Domestically Acquired Cases of Cyclosporiasis — United States, May–August 2021

CDC

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LAST UPDATED SEPTEMBER 30, 2021 4:00 PM EDT

Cyclosporiasis illnesses are reported year-round in the United States. However, during the spring and summer months there is often an increase in cyclosporiasis acquired in the United States (i.e., “domestically acquired”). The exact timing and duration of these seasonal increases in domestically acquired cyclosporiasis can vary, but reports tend to increase starting in May. In previous years the reported number of cases peaked between June and July, although activity can last as late as September. The overall health impact (e.g., number of infections or hospitalizations) and the number of identified clusters of cases (i.e., cases that can be linked to a common exposure) also vary from season to season. Previous U.S. outbreaks of cyclosporiasis have been linked to various types of fresh produce, including basil, cilantro, mesclun lettuce, raspberries, and snow peas.

At a Glance
  • Illnesses: 1020
  • Hospitalizations: 70
  • Deaths: 0
  • States reporting cases: 36

CDC, along with state and federal health and regulatory officials, monitor cases of cyclosporiasis in the United States in the spring and summer months to detect outbreaks linked to a common food source. However, many cases of cyclosporiasis cannot be directly linked to an outbreak, in part because of the lack of validated laboratory “fingerprinting” methods needed to link cases of Cyclospora infection. Officials use questionnaires to interview sick people to determine what they ate in the 14-day period before illness onset. If a commonality is found, CDC and partners work quickly to determine if a contaminated food product is still available in stores or in peoples’ homes and issue advisories.

Final Update

  • In 2021, multiple outbreaks of cyclosporiasis cases associated with different restaurants or events were investigated by state public health authorities, CDC, and FDA.
    • CDC investigated two large multistate outbreaks of cyclosporiasisexternal icon, one including 40 illnesses and one with 130 illnesses, in which ill people reported eating various types of leafy greens. State officials and FDA conducted traceback investigations for these two outbreaks, but a specific type or grower of leafy greens was not identified as the source of either outbreak.
  • As of September 28, 2021, 1,020 laboratory-confirmed cases of cyclosporiasis in people who had no history of international travel during the 14-day period before illness onset have been reported to CDC by 37 jurisdictions, including 36 states and New York City, since May 1, 2021.
    • The median illness onset date is June 25, 2021 (range: May 1–August 31, 2021).
    • At least 70 people have been hospitalized; no deaths have been reported.

September 30, 2021

Geographic Distribution of Reported Cases of Domestically Acquired Cyclosporiasis—May 1 to August 31, 2021*

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* Data are current as of 09/28/2021 (9:00am EDT). States/jurisdictions highlighted on the map have each reported at least one case. New York State includes case reports from New York City. Data are preliminary and subject to change. For questions related to the number of cases reported in each state, contact that state’s health department.

USA – Rochester Institute of Technology update on Norovirus Outbreak

Food Poison Journal

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The Monroe County Department of Public Health has determined norovirus — a contagious family of viruses — is likely responsible for recent illnesses on RIT’s Henrietta campus.

The vast majority of cases were resolved within 24-36 hours without medical treatment. However, some RIT students did need care in the Student Health Center, and a few received care in a local emergency department. In response to these cases, we have substantially increased our already stringent deep cleaning and sanitization efforts on high-touch surfaces in residence halls, dining areas, restrooms, and other spaces across campus.

Even with the number of cases declining in the past few days, we all must take steps to stay safe. If you are ill, please stay home and do not attend class or go to work. Remember to wash your hands often, stay in your residence when sick, and avoid preparing food for others.

USA – Cyclospora cases top 1000 in the US, 36 states reporting cases

Outbreak News Today

The Centers for Disease Control and Prevention (CDC) reported 156 additional Cyclospora cases in the past month, putting the total cases since May 2021.

The 1,020 laboratory-confirmed cases of cyclosporiasis were reported in people who had no history of international travel during the 14-day period before illness onset. Cases have been reported in 37 jurisdictions, including 36 states and New York City.

Seventy people required hospitalization for their illness.

Russia – Yersinia enterocolitica outbreak reported in Norilsk

Outbreak News Today

Yersinia p

Norilsk is is a city in Krasnoyarsk Krai, Russia, located above the Arctic Circle. Earlier this week, the head of the Rospotrebnadzor department for the Krasnoyarsk Territory Dmitry Goryaev reported an  Yersinia enterocolitica outbreak affecting 44 workers of Velesstroy LLC in Norilsk.

“As part of the sanitary and epidemiological investigation, according to the results of laboratory tests, the pathogen that causes intestinal yersiniosis, Yersinia enterocolitica, was identified in the patients,” he noted.

Earlier, the regional Rospotrebnadzor reported on the identification of violations of the requirements of sanitary legislation in the company canteen.

Research – USA – Novel Outbreak-Associated Food Vehicles, United States

CDC

Novel outbreak-associated food vehicles (i.e., foods not implicated in past outbreaks) can emerge as a result of evolving pathogens and changing consumption trends. To identify these foods, we examined data from the Centers for Disease Control and Prevention Foodborne Disease Outbreak Surveillance System and found 14,216 reported outbreaks with information on implicated foods. We compared foods implicated in outbreaks during 2007–2016 with those implicated in outbreaks during 1973–2006. We identified 28 novel food vehicles, of which the most common types were fish, nuts, fruits, and vegetables; one third were imported. Compared with other outbreaks, those associated with novel food vehicles were more likely to involve illnesses in multiple states and food recalls and were larger in terms of cases, hospitalizations, and deaths. Two thirds of novel foods did not require cooking after purchase. Prevention efforts targeting novel foods cannot rely solely on consumer education but require industry preventive measures.

USA – More patients identified in hepatitis A outbreak linked to restaurants

Food Safety News

At least three people have been admitted to hospitals in a growing outbreak of hepatitis A linked to restaurants in Virginia.

There are now 14 people confirmed infected, according to state health officials. Four of those patients are new since the outbreak was initially reported on Sept. 24. 

Additional patients are highly likely to be identified. It takes 15 to 50 days for hepatitis A symptoms to develop, according to the Centers for Disease Control and Prevention.

The infected people ate at three Famous Anthony’s restaurants, according to the Virginia Department of Health. Cynthia Morrow from the Roanoke City and Alleghany Health Districts provided an update on the outbreak earlier this week.

USA – Core Investigation Table Update

FDA

USA – 417 with Salmonella in 35 States

Food Poison Journal

Cilantro still looks suspicious, but NCIB dendrogram now says “mixed produce.”

Illinois, Maryland, Minnesota, Oklahoma, Texas and Virginia hardest hit.

The CDC reports today that since the last update on September 23, 2021, 140 more people were added to this outbreak. As of September 29, 2021, 419 people infected with the outbreak strain of Salmonella Oranienburg have been reported from 35 states. Illnesses started on dates ranging from June 19, 2021, to September 14, 2021.

USA – Norovirus responsible for illness at Rochester Institute of Technology’s Henrietta campus

Outbreak News Today

Norovirus Food Safety kswfoodworld

The Monroe County Department of Public Health has determined norovirus  is likely responsible for recent illnesses on Rochester Institute of Technology’s (RIT) Henrietta campus.

The vast majority of cases were resolved within 24-36 hours without medical treatment. However, some RIT students did need care in the Student Health Center, and a few received care in a local emergency department.

In response, the school has increased deep cleaning and sanitization efforts on high-touch surfaces in residence halls, dining areas, restrooms, and other spaces across campus.