Category Archives: E.coli O157:H7

USA – FDA Core Investigation Table

Posted on July 28, 2022 by KSW | Leave a comment

What’s New

For the Salmonella Senftenberg outbreak in Peanut Butter (ref# 1067), the outbreak status has ended and the investigation status is now closed.
A new outbreak has been added to the table: Cyclospora in a not yet identified food (ref #1084).
For the Salmonella Paratyphi B var. L(+) tartrate+ outbreak (ref# 1072) in a not yet identified food, the outbreak status has ended. FDA’s investigation status is still ongoing.


Date Posted	Ref	Pathogen or Cause of Illness	Product(s) Linked to Illnesses (if any)	Total Case Count	Status
7/27/ 2022	1084	Cyclospora	Not Yet Identified	51	Active
6/29/ 2022	1076	Not Yet Identified	Frozen Food	See Outbreak Advisory	Active
6/22/ 2022	1075	Salmonella Braenderup	Not Yet Identified	70	Active
6/22/ 2022	1072	Salmonella Paratyphi B var. L(+) tartrate+	Not Yet Identified	14	Active
6/15/ 2022	1070	Listeria monocytogenes	Not Yet Identified	12	Active
6/8/ 2022	1068	E. coli O157:H7	Not Identified	10	Closed
6/1/ 2022	1066	Hepatitis A Virus	Strawberries	See Outbreak Advisory	Active
5/25/ 2022	1067	Salmonella Senftenberg	Peanut Butter	See Outbreak Advisory	Closed
4/20/ 2022	1064	Not Yet Identified	Dry Cereal	558 adverse event reports	Active
4/13/ 2022	1057	Listeria monocytogenes	Ice Cream	See Outbreak Advisory	Active
3/30/ 2022	1060	None Identified	Meal Replacement Drink	6 adverse event reports	Closed
3/16/ 2022	1055	Salmonella Saintpaul	Not Identified	60	Closed
2/17/ 2022	1056	Cronobacter sakazakii	Powdered Infant Formula	See Advisory	Active (IMG)
2/9/ 2022	1040	Listeria monocytogenes	Not Identified	20	Closed
2/2/ 2022	1054	Enteroinvasive E. coli O143:H26	Not Identified	16	Closed
1/10/ 2022	1050	E. coli O121:H19	Romaine	4	Closed

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Posted in Cronobacter sakazakii, Cyclospora, E.coli O121, E.coli O157, E.coli O157:H7, FDA, Food Micro Blog, Food Microbiology, Food Microbiology Blog, Food Microbiology Testing, Hepatitis A, Listeria, Listeria monocytogenes, microbial contamination, Microbiological Risk Assessment, Microbiology, Microbiology Investigations, Microbiology Risk, O143:H26, Salmonella

Canada – Canada sets regulations for some romaine grown in certain parts of California

Posted on July 27, 2022 by KSW | Leave a comment

Food Safety News

The Canadian Food Inspection Agency (CFIA) has announced the fall 2022 import requirements for U.S. romaine lettuce with special requirements for certain lettuce produced in California’s Salinas Valley.

Whole-head romaine lettuce and products containing romaine lettuce such as bagged salads that were produced in the four Salinas Valley counties of Santa Cruz, Santa Clara, San Benito, and Monterey must “submit an attestation form and Certificates of Analysis for each shipment to demonstrate that the romaine lettuce does not contain detectable levels of E. coli O157:H7,” according to the Canadian Food Inspection Agency (CFIA).

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Posted in CFIA, Decontamination Microbial, E.coli, E.coli O157, E.coli O157:H7, Food Micro Blog, Food Microbiology, Food Microbiology Blog, Food Microbiology Research, Food Microbiology Testing, microbial contamination, Microbiological Risk Assessment, Microbiology, Microbiology Investigations, Microbiology Risk, STEC, STEC E.coli

USA – FDA Core Outbreak Table Update

Posted on July 21, 2022 by KSW | Leave a comment

FDA

Date Posted	Ref	Pathogen or Cause of Illness	Product	Total Case Count	Status
6/29/ 2022	1076	Not Yet Identified	Frozen Food	See Outbreak Advisory	Active
6/22/ 2022	1075	Salmonella Braenderup	Not Yet Identified	70	Active
6/22/ 2022	1072	Salmonella Paratyphi B var. L(+) tartrate+	Not Yet Identified	14	Active
6/15/ 2022	1070	Listeria monocytogenes	Not Yet Identified	12	Active
6/8/ 2022	1068	E. coli O157:H7	Not Identified	10	Closed
6/1/ 2022	1066	Hepatitis A Virus	Strawberries	See Outbreak Advisory	Active
5/25/ 2022	1067	Salmonella Senftenberg	Peanut Butter	See Outbreak Advisory	Active
4/20/ 2022	1064	Not Yet Identified	Dry Cereal	558 adverse event reports	Active
4/13/ 2022	1057	Listeria monocytogenes	Ice Cream	See Outbreak Advisory	Active
3/30/ 2022	1060	None Identified	Meal Replacement Drink	6 adverse event reports	Closed
3/16/ 2022	1055	Salmonella Saintpaul	Not Identified	60	Closed
2/17/ 2022	1056	Cronobacter sakazakii	Powdered Infant Formula	See Advisory	Active (IMG)
2/9/ 2022	1040	Listeria monocytogenes	Not Identified	20	Closed
2/2/ 2022	1054	Enteroinvasive E. coli O143:H26	Not Identified	16	Closed
1/10/ 2022	1050	E. coli O121:H19	Romaine	4	Closed

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Posted in Cronobacter sakazakii, E.coli O121, E.coli O157, E.coli O157:H7, FDA, food bourne outbreak, foodborne outbreak, foodbourne outbreak, Hepatitis A, Listeria, Listeria monocytogenes, O143:H26, outbreak, Salmonella

Research – Collective food poisoning (TIAC) with E. coli O157 producing Shiga toxins, associated with the consumption of raw cucumbers

Posted on July 13, 2022 by KSW | Leave a comment

Sante Publique

On September 9, 2021, the Regional Health Agency (ARS) of Hauts-de-France was informed of a suspicion of collective food poisoning (TIAC) affecting half-board students, educated in several schools in a municipality. of the Lille metropolis.

On September 13, 2021, two cases of haemolytic and uremic syndrome (HUS) were diagnosed in two hospitalized children attending school in this town. Public Health France Hauts-de-France was asked by the Hauts-de-France ARS to provide support for the investigations and management of this TIAC. A total of 35 cases of gastroenteritis, with bloody diarrhea and fever (>38°C) in half of the cases, were identified. Ten cases were hospitalized and two children developed HUS.

The cases identified were half-board students in four school groups (29 cases), a parent of a student and elderly people benefiting from the municipality’s home meal delivery service (5 cases). The case canteens were all supplied by the central municipal kitchen.

The shape of the epidemic curve was in favour of a common and point source of contamination during meals on September 2 or 3, 2021. The case-control survey, carried out in schools, concluded that only the consumption of cucumbers in salad, served with the meal on September 2, was statistically and significantly associated with the occurrence of the disease.

A strain of E. highly pathogenic Shiga toxin-producing (STEC) O157 coli was isolated from the stool cultures of eight cases, including the two children who developed HUS and in the offending cucumber salad. Genomic analysis of the strains confirmed the genetic clustering of clinical and food strains that belonged to the same genomic cluster. The veterinary investigation revealed that a failure in the decontamination process, associated with incomplete peeling of the contaminated cucumbers, contributed to the occurrence of this TIAC.

The cucumbers in question came from Belgium and the Belgian health authorities were informed via the dedicated European alert circuits. No other episodes of clusters of STEC infection related to this TIAC have been reported to the ARS over the period while cucumbers from the same batch had been widely distributed in communities and commercial catering services in the Hauts-de-France region. The food vehicle, incriminated in this TIAC, is part of the plants at risk because of its raw mode of consumption. It is important to remind vulnerable populations and collective catering services that preventing the risk of STEC infection, linked to the consumption of raw vegetables, requires washing, disinfection and peeling.

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Posted in Bacterial Toxin, E.coli O157, E.coli O157:H7, food bourne outbreak, Food Illness, Food Micro Blog, Food Microbiology, Food Microbiology Blog, Food Microbiology Research, Food Microbiology Testing, Food Toxin, Foodborne Illness, foodborne outbreak, foodbourne outbreak, HUS, Illness, microbial contamination, Microbiological Risk Assessment, Microbiology, Microbiology Investigations, Microbiology Risk, outbreak, Research, STEC, STEC E.coli, Toxin

USA – FDA Core Investigation Table

Posted on July 7, 2022 by KSW | Leave a comment

FDA

What’s New

For the Salmonella Braenderup outbreak in a not yet identified food (ref# 1075), the case count has increased from 42 to 59 cases.
For the Listeria monocytogenes outbreak (ref# 1057), a product linked to illnesses is ice cream from Big Olaf Creamery, located in Florida.

Date Posted	Ref #	Pathogen or Cause of Illness	Product(s) Linked to Illnesses (if any)	Total Case Count	Status
6/29/ 2022	1076	Not Yet Identified	Frozen Food	See Outbreak Advisory	Active
6/22/ 2022	1075	Salmonella Braenderup	Not Yet Identified	59	Active
6/22/ 2022	1072	Salmonella Paratyphi B var. L(+) tartrate+	Not Yet Identified	14	Active
6/15/ 2022	1070	Listeria monocytogenes	Not Yet Identified	12	Active
6/8/ 2022	1068	E. coli O157:H7	Not Yet Identified	10	Active
6/1/ 2022	1066	Hepatitis A Virus	Strawberries	See Outbreak Advisory	Active
5/25/ 2022	1067	Salmonella Senftenberg	Peanut Butter	See Outbreak Advisory	Active
4/20/ 2022	1064	Not Yet Identified	Dry Cereal	558 adverse event reports	Active
4/13/ 2022	1057	Listeria monocytogenes	Ice Cream	See CDC’s Investigation Notice	Active
3/30/ 2022	1060	None Identified	Meal Replacement Drink	6 adverse event reports	Closed
3/16/ 2022	1055	Salmonella Saintpaul	Not Identified	60	Closed
2/17/ 2022	1056	Cronobacter sakazakii	Powdered Infant Formula	See Advisory	Active (IMG)
2/9/ 2022	1040	Listeria monocytogenes	Not Identified	20	Closed
2/2/ 2022	1054	Enteroinvasive E. coli O143:H26	Not Identified	16	Closed
1/10/ 2022	1050	E. coli O121:H19	Romaine	4	Closed

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Posted in Cronobacter sakazakii, E.coli O121, E.coli O157, E.coli O157:H7, food bourne outbreak, Food Illness, Food Micro Blog, Food Microbiology, Food Microbiology Blog, Food Microbiology Research, Food Microbiology Testing, Foodborne Illness, foodborne outbreak, foodbourne outbreak, Illness, Listeria monocytogenes, microbial contamination, Microbiological Risk Assessment, Microbiology, Microbiology Investigations, Microbiology Risk, O143:H26, outbreak, Salmonella

Czech Republic – Officials warn of increase in E. coli infections

Posted on July 5, 2022 by KSW | Leave a comment

Food Safety News

A rise in Shiga toxin-producing E. coli (STEC) infections has prompted a warning by health officials in the Czech Republic.

The National Institute of Public Health (SZU) reported that in the first six months of this year 25 cases have been recorded and 15 of them occurred in the past two months.

Eight were reported in May and seven in June. That is more than half of all cases so far in 2022. The majority of those sick are children under the age of five. In 2021, 46 cases were recorded.

Sick people come from across the country but mostly Prague, the South Moravian and South Bohemian regions. Twelve infections were caused by E. coli O26 and six by E. coli O157.

People can become infected by contact with animals, eating insufficiently cooked meat, drinking unpasteurized milk, or by contact with an infected person.

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Posted in E.coli, E.coli O157, E.coli O157:H7, E.coli O26, Food Micro Blog, Food Microbiology, Food Microbiology Blog, Food Microbiology Research, Food Microbiology Testing, microbial contamination, Microbiological Risk Assessment, Microbiology, Microbiology Investigations, Microbiology Risk, Research

Research – Effect of Biltong Dried Beef Processing on the Reduction of Listeria monocytogenes, E. coli O157:H7, and Staphylococcus aureus, and the Contribution of the Major Marinade Components

Posted on July 3, 2022 by KSW | Leave a comment

MDPI

Biltong is a dry beef product that is manufactured without a heat lethality step, raising concerns of whether effective microbial pathogen reduction can occur during biltong processing. Raw beef inoculated with 4-strain cocktails of either E. coli O157:H7, Listeria monocytogenes, or Staphylococcus aureus, and processed with a standard biltong process, were shown to incur a >5-log reduction in 6–8 days after marination by vacuum-tumbling for 30 min in vinegar, salt, spices (coriander, pepper) when dried at 23.9 °C (75 °F) at 55% relative humidity (RH). Pathogenic challenge strains were acid-adapted in media containing 1% glucose to ensure that the process was sufficiently robust to inhibit acid tolerant strains. Internal water activity (A_w) reached < 0.85 at 5-log reduction levels, ensuring that conditions were lower than that which would support bacterial growth, or toxin production by S. aureus should it be internalized during vacuum tumbling. This was further confirmed by ELISA testing for staphylococcal enterotoxins A and B (SEA, SEB) after marination and again after 10 days of drying whereby levels were lower than initial post-marination levels. Comparison of log reduction curves obtained for E. coli O157:H7, L. monocytogenes, S. aureus, and Salmonella (prior study) showed that microbial reduction was not significantly different (p < 0.05) demonstrating that even without a heat lethality step, the biltong process we examined produces a safe beef product according to USDA-FSIS guidelines.

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Posted in Decontamination Microbial, E.coli O157, E.coli O157:H7, Enterotoxins, Food Micro Blog, Food Microbiology, Food Microbiology Blog, Food Microbiology Research, Food Microbiology Testing, Listeria, Listeria monocytogenes, microbial contamination, Microbiological Risk Assessment, Microbiology, Microbiology Investigations, Research, Salmonella, Staphylococcus aureus

USA – FDA Core Outbreak Table

Posted on June 30, 2022 by KSW | Leave a comment

FDA


Date Posted	Ref	Pathogen or Cause of Illness	Product(s) Linked to Illnesses (if any)	Total Case Count	Status
6/29/ 2022	1076	Not Yet Identified	Frozen Food	107 adverse event reports	Active
6/22/ 2022	1075	Salmonella Braenderup	Not Yet Identified	42	Active
6/22/ 2022	1072	Salmonella Paratyphi B var. L(+) tartrate+	Not Yet Identified	14	Active
6/15/ 2022	1070	Listeria monocytogenes	Not Yet Identified	12	Active
6/8/ 2022	1068	E. coli O157:H7	Not Yet Identified	10	Active
6/1/ 2022	1066	Hepatitis A Virus	Strawberries	See Outbreak Advisory	Active
5/25/ 2022	1067	Salmonella Senftenberg	Peanut Butter	See Outbreak Advisory	Active
4/20/ 2022	1064	Not Yet Identified	Dry Cereal	558 adverse event reports	Active
4/13/ 2022	1057	Listeria monocytogenes	Not Yet Identified	22	Active
3/30/ 2022	1060	None Identified	Meal Replacement Drink	6 adverse event reports	Closed
3/16/ 2022	1055	Salmonella Saintpaul	Not Identified	60	Closed
2/17/ 2022	1056	Cronobacter sakazakii	Powdered Infant Formula	See Advisory	Active (IMG)
2/9/ 2022	1040	Listeria monocytogenes	Not Identified	20	Closed
2/2/ 2022	1054	Enteroinvasive E. coli O143:H26	Not Identified	16	Closed
1/10/ 2022	1050	E. coli O121:H19	Romaine	4	Closed

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Posted in Cronobacter sakazakii, E.coli O121, E.coli O157, E.coli O157:H7, FDA, food bourne outbreak, Food Illness, Food Micro Blog, Food Microbiology, Food Microbiology Blog, Food Microbiology Research, Food Microbiology Testing, Foodborne Illness, foodborne outbreak, foodbourne outbreak, Hepatitis A, Illness, Listeria, Listeria monocytogenes, microbial contamination, Microbiological Risk Assessment, Microbiology, Microbiology Investigations, Microbiology Risk, O143:H26, outbreak, Salmonella

USA – FDA Core Investigation Table Update

Posted on June 24, 2022 by KSW | Leave a comment

FDA

Date Posted	Ref	Pathogen or Cause of Illness	Product(s) Linked to Illnesses (if any)	Total Case Count	Status
6/22/ 2022	1075	Salmonella Braenderup	Not Yet Identified	40	Active
6/22/ 2022	1072	Salmonella Paratyphi B var. L(+) tartrate+	Not Yet Identified	13	Active
6/15/ 2022	1070	Listeria monocytogenes	Not Yet Identified	12	Active
6/8/ 2022	1068	E. coli O157:H7	Not Yet Identified	10	Active
6/1/ 2022	1066	Hepatitis A Virus	Strawberries	See Outbreak Advisory	Active
5/25/ 2022	1067	Salmonella Senftenberg	Peanut Butter	See Outbreak Advisory	Active
4/20/ 2022	1064	Not Yet Identified	Dry Cereal	558 adverse event reports	Active
4/13/ 2022	1057	Listeria monocytogenes	Not Yet Identified	21	Active
3/30/ 2022	1060	None Identified	Meal Replacement Drink	6 adverse event reports	Closed
3/16/ 2022	1055	Salmonella Saintpaul	Not Identified	60	Closed
2/17/ 2022	1056	Cronobacter sakazakii	Powdered Infant Formula	See Advisory	Active (IMG)
2/9/ 2022	1040	Listeria monocytogenes	Not Identified	20	Closed
2/2/ 2022	1054	Enteroinvasive E. coli O143:H26	Not Identified	16	Closed
1/10/2022	1050	E. coli O121:H19	Romaine	4	Closed

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Posted in Cronobacter sakazakii, E.coli O121, E.coli O157, E.coli O157:H7, FDA, Hepatitis A, Listeria, Listeria monocytogenes, O143:H26, Salmonella

USA – FDA Core Investigation Table Update

Posted on June 16, 2022 by KSW | Leave a comment

FDA

Date Posted	Ref #	Pathogen or Cause of Illness	Product(s) Linked to Illnesses (if any)	Total Case Count	Status
6/15/ 2022	1070	Listeria monocytogenes	Not Yet Identified	12	Active
6/8/ 2022	1068	E. coli O157:H7	Not Yet Identified	10	Active
6/1/ 2022	1066	Hepatitis A Virus	Strawberries	See Outbreak Advisory	Active
5/25/ 2022	1067	Salmonella Senftenberg	Peanut Butter	See Outbreak Advisory	Active
4/20/ 2022	1064	Not Yet Identified	Dry Cereal	558 adverse event reports	Active
4/13/ 2022	1057	Listeria monocytogenes	Not Yet Identified	21	Active
3/30/ 2022	1060	Not Yet Identified	Meal Replacement Drink	6 adverse event reports	Closed
3/16/ 2022	1055	Salmonella Saintpaul	Not Identified	60	Closed
2/17/ 2022	1056	Cronobacter sakazakii	Powdered Infant Formula	See Advisory	Active (IMG)
2/9/ 2022	1040	Listeria monocytogenes	Not Identified	20	Closed
2/2/ 2022	1054	Enteroinvasive E. coli O143:H26	Not Identified	16	Closed
1/10/ 2022	1050	E. coli O121:H19	Romaine	4	Closed

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Posted in Cronobacter sakazakii, E.coli O121, E.coli O157, E.coli O157:H7, FDA, Food Micro Blog, Food Microbiology, Food Microbiology Blog, Food Microbiology Research, Food Microbiology Testing, Hepatitis A, Listeria monocytogenes, microbial contamination, Microbiological Risk Assessment, Microbiology, Microbiology Investigations, O143:H26, Salmonella

Category Archives: E.coli O157:H7

USA – FDA Core Investigation Table

What’s New

Canada – Canada sets regulations for some romaine grown in certain parts of California

USA – FDA Core Outbreak Table Update

Research – Collective food poisoning (TIAC) with E. coli O157 producing Shiga toxins, associated with the consumption of raw cucumbers

USA – FDA Core Investigation Table

What’s New

Czech Republic – Officials warn of increase in E. coli infections

Research – Effect of Biltong Dried Beef Processing on the Reduction of Listeria monocytogenes, E. coli O157:H7, and Staphylococcus aureus, and the Contribution of the Major Marinade Components

USA – FDA Core Outbreak Table

USA – FDA Core Investigation Table Update

USA – FDA Core Investigation Table Update

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