Category Archives: Foodborne Illness

UK – Reading Festival: Investigation into food poisoning outbreak

BBC

An outbreak of food poisoning, after a number of festival-goers fell ill at Reading Festival, is being scrutinized.

Reading Borough Council said it was investigating following reports “relating to suspected food poisoning” at the festival.

Posting on the Reading Festival Community Facebook group, several festival-goers said they were suddenly struck down over the weekend with symptoms including diarrhoea, vomiting, stomach aches and a fever.

Some said they were forced to leave the festival as they were so unwell.

Research – Incidence of Food Poisoning Outbreaks in Pahang, Malaysia, for Six-Year, from 2013 to 2018

Pertanika

The Food Safety and Quality Division (FSQD) in Malaysia is the competent authority tasked with ensuring food safety throughout the food supply chain within the country. Despite implementing various regulations toward improving food hygiene standards in Malaysia, outbreaks of food poisoning cases continued to occur in Malaysia. This cross-sectional study was designed to explore the occurrence of food poisoning incidents in Malaysia, within the Pahang state, from 2013 to 2018 via both reported passive case detection (PCD) and active case detection (ACD) food poisoning incidents. Upon detecting all the food poisoning cases using both PCD and ACD, the people identified to have suffered from food poisoning underwent a structured interview for investigators to elicit all relevant information about the food poisoning incident. Results showed that in Pahang, the number of reported episodes fluctuated from 2013 until 2018, with an average of 21 food poisoning episodes occurring yearly, reaching a maximum in August and a minimum in May. Furthermore, Kuantan, being the state capital, had reported an exceptionally high total number of reported incidents of food poisoning with a total of 48 episodes over six years from 2013 to 2018, while Kuala Lipis had only one incident reported during the same period (which was reported in 2016). Finally, this study concluded that adequate measures must always be taken to minimise the occurrence of food poisoning, especially when preparing foods in large quantities.

Research – USA – Summary of Possible Multistate Enteric (Intestinal) Disease Outbreaks in 2017–2020

CDC

This analysis includes 470 possible multistate outbreak investigations during 2017–2020.

Research – Notes from the Field: Outbreak of Salmonella Enteritidis at a Correctional Facility Using Mechanically Separated Chicken — Nebraska, 2022

CDC

On January 14, 2022, the Lincoln-Lancaster County (Nebraska) Health Department (LLCHD) notified the Nebraska Department of Health and Human Services (NDHHS) of two cases of laboratory-confirmed Salmonella in inmates at a correctional facility (facility A). LLCHD initiated an investigation in collaboration with NDHHS to identify the source of the outbreak and develop recommendations. The investigation linked consumption of mechanically separated chicken to illness. Mechanically separated chicken, which is produced at chicken processing facilities by separating edible chicken from bone and cartilage under pressure, is frequently purchased for use in institutions, such as prisons, jails, and correctional facilities because of its affordability (1,2).

Staff members at facility A reported approximately 100 inmates experienced gastrointestinal symptoms during a period of a few days; no staff member reported illness. LLCHD conducted open-ended interviews with ill inmates. Because the facility was experiencing a concurrent outbreak of COVID-19, and access to inmates for interviews was limited, it is likely that additional cases existed among noninterviewed and untested inmates beyond the total cases identified in the investigation. Inmates who were designated food handlers were prioritized for interviews because of transmission risk to others; untested inmates were able to seek care through facility A medical staff. A probable case was defined as the onset of diarrhea, stomach cramps, or vomiting during January 9–11, 2022, but without a positive stool culture, in an inmate at facility A; a confirmed case was defined as isolation of Salmonella serotype Enteritidis highly related to the outbreak strain (within three alleles) by core genome multilocus sequence typing in a clinical specimen. LLCHD conducted an environmental assessment on January 15, 2022. A list of food handlers, food menus for January, and temperature logs were requested. During the environmental assessment, a sample of raw, unopened mechanically separated chicken from a 50-lb intact box from the same shipment used to prepare a meal on January 8, 2022, was collected for testing.

A total of 15 cases of S. Enteritidis infection were identifie

Ireland – Irish officials warn about rise in E. coli infections

Food Safety News

Health officials in the Republic of Ireland have issued a warning after an increase in E. coli cases and outbreaks in recent weeks.

The Department of Public Health Mid-West reported that in a four week period there have been more than 20 E. coli cases reported in the region, including several hospitalizations.

Public health teams have managed and investigated outbreaks and cases in households and rural settings, particularly on or near farms, and sites with access to a private well supply. Sources of infection are under investigation.

Officials also confirmed a “small number” of hemolytic uremic syndrome (HUS) cases. HUS is a type of kidney failure associated with E. coli infection.

The Mid-West region, which includes Clare, Limerick and North Tipperary, has one of the top rates of E. coli in the country, and Ireland has one of the highest rates in Europe.

In the past decade, there have been 1,250 cases of E. coli in the Mid-West region, with the highest number being 164 infections in 2021.

Infection can be acquired through contact with farm animals or their environment, from eating unwashed or undercooked contaminated food, drinking water from contaminated sources, and from contact with infected people such as in household or childcare settings where there are nappy changing or shared toilet facilities.

Meanwhile, an E. coli outbreak in Scotland has affected at least 50 people. Two nurseries in East Lothian have now reopened. Some patients were hospitalized but most people had mild symptoms and did not require hospital treatment.

Public Health Wales also recently reported an increase in cases of diarrhea and vomiting, specifically those caused by E. coli, in the Wrexham and Flintshire areas.

Research – Outbreak Investigation of E. coli O157:H7: Unknown Food (Fall 2020)

Food Poisoning News

The FDA and CDC, in collaboration with state and local partners, have completed the investigation on two of three multistate outbreak of E. coli O157:H7 infections in the U.S. this fall.

One of these investigations, Outbreak Unknown Source 3, identified 18 reported illnesses in nine states: California, Colorado, Illinois, Michigan, New York, Ohio, Pennsylvania, Virginia, Washington.

FDA completed a traceback investigation of several potential food vehicles identified in patient interviews and although no single farm was identified as a common source of the outbreak, FDA and state partners also conducted on-site investigations on farms of interest. However, information and samples collected in these inspections did not link these farms to the outbreak. The investigation of a farm does not mean that the farm is linked to an outbreak. The results of an investigation into a farm may well lead to that firm being ruled out of the investigation. On 12/18/2020, the CDC announced that this outbreak had ended.

The other completed outbreak investigation, Outbreak Unknown Source 1, identified 32 reported illnesses in 12 states: California, Illinois, Louisiana, Maryland, Michigan, Montana, New Jersey, Ohio, Utah, Virginia, Washington, Wisconsin. This strain of E. coli is genetically similar to a strain linked to a romaine outbreak that occurred in the spring of 2018, though a food was not linked to the current outbreak. FDA completed a traceback investigation and was unable to determine a common source of the outbreak. FDA and state partners also conducted on-site inspections on farms of interest, though information collected in these inspections did not link these farms to the outbreak. On 12/18/2020, the CDC announced that this outbreak had ended.

Investigations of a third E. coli outbreak of Unknown Source 2 continue.

Research – WHO wants help to estimate foodborne disease burden

Food Safety News

The World Health Organization (WHO) has called for help as part of work to estimate the burden of foodborne disease.

WHO is seeking support from independent consultants or groups of experts with relevant experience to undertake systematic reviews and other studies on foodborne illness. The process is part of collecting and assessing available evidence.

One call is for the review and evidence synthesis of diarrheal diseases and deaths caused by 14 pathogens commonly transmitted by food. The other covers global expert elicitation for attribution of burden of disease to foodborne transmission and to specific foods.

The WHO Foodborne Disease Burden Epidemiology Reference Group (FERG) was reconvened in May 2021 to update global estimates published in 2015. This group has already met three times in July and October 2021, and April 2022. A new report is expected in 2025.

India – 20 students fall ill due to suspected food poisoning

The Hindu

As many as 20 students of Social Welfare Residential school located at Dubbak in Siddipet district fell ill on Friday, due to suspected food poisoning.

The students complained about stomach pain and symptoms of fever, according to sources.

District Medical and Health Officer (DM&HO) Kashinath along with medical teams rushed to the hostel and was treating the students.

The students told the treating doctors that they have developed these health issues after consuming Payasam the day before yesterday, the DM&HO said that there might be some other reasons, including water contamination, but they could not confirm it till medical tests were completed.

There are some 400 students studying in the school and according to locals some of the students have been suffering with seasonal fevers. Some students have complained that they have been not receiving proper food despite repeated appeals.

Sweden – Pasta meal behind 80 illnesses in Sweden – Staphylococcus/Bacillus

Food Safety News

Around 80 people got food poisoning from a pasta meal at a soccer tournament this past month in Sweden.

An investigation into the incident in Gammelstad on Aug. 5 revealed people fell ill after eating spaghetti bolognese from a restaurant in the city of Luleå.

Testing of the bolognese left at the restaurant was found to be satisfactory. Samples were also taken in Gammelstad where serving took place. High levels of bacteria were detected in the pasta, plus the presence of toxins that can cause food poisoning. Food had been left at room temperature for some time after serving, which provided an opportunity for bacterial growth.

Bacillus cereus and Staphylococcus aureus were found in the pasta meal. Symptoms experienced by those sick matched what would be expected with such contamination.

USA – Domestically Acquired Cases of Cyclosporiasis — United States, May–August 2022

CDC

LAST UPDATED AUGUST 25, 2022 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: 800
  • Hospitalizations: 52
  • Deaths: 0
  • States reporting cases: 30

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.

Latest Information

  • The number of reported cases of domestically acquired cyclosporiasis illnesses has increased by 416 cases since the last update on July 28, 2022. Cases continue to be reported.
  • As of August 23, 2022, 800 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 31 jurisdictions, including 30 states and New York City, since May 1, 2022.
    • The median illness onset date is June 29, 2022 (range: May 3, 2022–August 12, 2022).
    • At least 52 people have been hospitalized; 0 deaths have been reported.