Category Archives: Uncategorized

USA – Ohio Romaine Outbreak Sickens 12 with E. coli O157:H7 Infections

Food Poisoning Bulletin

The Ohio romaine outbreak has sickened 12 people with E. coli O157:H7 infections, making it the state with the second most illnesses after Wisconsin, with 33 cases as of December 9, 2019. Overall, at least 102 people are sick across the country, with 58 hospitalized and 10 who have developed hemolytic uremic syndrome (HUS), a type of kidney failure.

Most romaine products, including baby romaine, chopped romaine, organic romaine, hearts of romaine, romaine in salad wraps, salad bowl kits, sandwiches, packages of precut lettuce, and salad mixes that contain romaine, may be marked with the growing region. This is a voluntary policy put into place after last year’s two romaine E. coli O157:H7 HUS outbreaks. If the label says “Salinas” anywhere, or if the package is unmarked, don’t eat the romaine.

The CDC and FDA have stated that there is one grower associated with all three E. coli O157:H7 romaine outbreaks that are ongoing, but that grower has not been named. Officials have inspected three farms in the Salinas region, but has not named those.

UK – Scotland -FSS issues festive food poisoning warning

HPS

17 December 2019

Article: 53/5007

Food Standards Scotland (FSS) is reminding people to reduce the risk of food poisoning over the festive period by ensuring they follow good food safety practices.

Results from the latest FSS Food in Scotland Consumer Tracking Survey reveal that almost three-quarters of Scots (72%) completely fill their fridge at least some of the time, but only 12% always remember to check the temperature when it’s full. This is an essential measure, as a fridge temperature between zero and five degrees centigrade will help slow the growth of food poisoning bacteria, whilst overfilling can raise the fridge temperature.

FSS has created a downloadable food safety checklist which serves as a reminder when carrying out the different stages of preparing, cooking and eating Christmas dinner, as well as storing leftovers.

Source: FSS, 13 December 2019

Research -Deoxynivalenol and ochratoxin A in North Carolina grown organic wheat grains

Wiley Online

Abstract

The main safety issue of cereal grains is mycotoxin contamination. There is no published information about mycotoxin contamination of organic wheat in the United States. This study quantified the contents of deoxynivalenol (DON) and ochratoxin A (OTA), two frequently occurring mycotoxins, in organic wheat samples collected from six counties in North Carolina by enzyme‐linked immunosorbent assay (ELISA) and high‐performance liquid chromatography (HPLC). By ELISA, all samples were DON and OTA positive, and the DON contents in the flour and bran samples were 0.7–2.35 ppm and 5–8 ppm, respectively, while OTA in the flour and bran samples were 9.54–25.55 ppb and 21.67–32.55 ppb, respectively. By HPLC, the DON detected in flour and bran were 0.24–0.47 ppm and 0.35–0.83 ppm, respectively; all flour samples were OTA negative, but 5 out of 6 bran samples were OTA positive (0.48–1.28 ppb). More studies with larger sample number are needed to obtain representative results.

Practical applications

This study provides preliminary results about the DON and OTA in organic wheat grains. The results indicate that the organic wheat produced in North Carolina during 2018 season were contaminated by DON and OTA to various degrees. However, the concentrations of these two mycotoxins determined by ELISA were significantly higher than those determined by HPLC. Therefore, to avoid overestimation or underestimation, it is important for researchers and regulatory agencies to conduct multi‐lab studies to develop and standardize analytical methods and detailed procedures for accurate DON and OTA quantification. Regardless of analytical methods, all bran samples showed higher DON and OTA concentrations than flour samples. Thus, when using organic wheat bran or whole wheat as food or feed ingredients, the level of bran inclusion should be controlled to protect consumers and animals from mycotoxicosis.

Research – Chemical composition and antimicrobial activity against food‐related microorganisms of different essential oils from Lebanon

Wiley Online

Abstract

Essential oils (EOs) have long been recognized for their medicinal properties. Application of EOs in food preservation has gained recent interest as natural alternatives to conventional chemicals. Even though the properties of EOs are extensively documented, their effect on several food‐related microorganisms is yet to be explored. In this study, six EOs were extracted by hydrodistillation and analyzed using GC/MS techniques, and then antimicrobial activity was tested against microorganisms of food interests through minimal inhibitory concentration (MIC) techniques. Both Coridothymus capitatus and Origanum syriacum EOs showed an antifungal activity (MIC ≤ 0.625 μL/mL). Interestingly all foodborne pathogens tested were sensitive to C. capitatus EO and two of them, Staphylococcus aureus and Listeria monocytogenes, to O. syriacum EO (MIC ≤ 1.25 μL/mL) while the beneficial food‐related bacteria (Lactobacillus sp.) were not affected (MIC ± 10 μL/mL). Finally, Cinnamomum zeylanicum EO showed a broader antimicrobial activity on all microorganisms analyzed.

Practical Applications

Essential oils from Lebanese plants could be used to selectively control foodborne pathogens, including fungi and bacteria. These essential oils could represents an alternative to conventional anti microbials as they did not affect benefiacial food‐related bacteria.

Canada -Food Recall Warning – Certain Coaticook brand Cheddar cheese recalled due to Listeria monocytogenes

CFIA

Recall date:
December 16, 2019
Reason for recall:
Microbiological – Listeria
Hazard classification:
Class 1
Company / Firm:
Laiterie Coaticook Ltée
Distribution:
Quebec
Extent of the distribution:
Consumer

Recall details

Ottawa, December 16, 2019 – Laiterie Coaticook Ltée. is recalling certain Coaticook brand Cheddar cheese from the marketplace due to possible Listeria monocytogenes contamination. Consumers should not consume the recalled products described below.

Recalled products

Brand Product Size UPC Codes
Coaticook Mild Cheddar Cheese 50 g 0 59263 60050 2 Best Before: 03MR20
Coaticook Mild Cheddar Cheese 180 g 0 59263 60180 6 Best Before: 03MR20
Coaticook Mild Cheddar Cheese 320 g 0 59263 60320 6 Best Before: 03MR20
Coaticook Mild Cheddar Cheese 2.27 kg 0260005 Best Before: 03MR20
Coaticook Mild Cheddar Cheese 1.15 kg 0260025 Best Before: 03MR20
Coaticook Bloc Cheddar Cheese Variable Starting with
0 260001
Best Before: 03MR20
Coaticook Pointe Cheddar Cheese Variable Starting with 0 250006 Best Before: 03MR20

Illnesses

There have been no reported illnesses associated with the consumption of these products.

Product photos

Printer ready version of photos

  • Coaticook Mild Cheddar Cheese - 180 g
  • Coaticook Pointe Cheddar Cheese
  • Coaticook Bloc Cheddar Cheese

Russia -Salmonella sickens dozens in Khanty-Mansiysk, Russia

Outbreak News Today

Salmonella was laboratory confirmed in 35 of 73 pupils of Wonderland kindergarten in Khanty-Mansiysk who were infected with acute intestinal infection, city administrators report.

The Tass news service reports, “As of December 13, 73 cases were registered, four children were hospitalized in the children’s infectious ward of the district clinical hospital, and 35 children were laboratory confirmed with Salmonellosis group D,” Rimir Gimalov, the head of the public health department of the city administration, said in a statement.

According to local authorities, all necessary anti-epidemic measures are being carried out in the kindergarten. The institution was closed for quarantine.

Research – Shiga toxin-producing Escherichia coli (STEC) and food: attribution, characterization, and monitoring

WHO

Strains of pathogenic Escherichia coli that are characterized by their ability to
produce Shiga toxins are referred to as Shiga toxin-producing E. coli (STEC). STEC
are an important cause of foodborne disease and infections have been associated with a wide range of human clinical illnesses ranging from mild non-bloody
diarrhoea to bloody diarrhoea (BD) and haemolytic uraemic syndrome (HUS)
which often includes kidney failure. A high proportion of patients are hospitalized,
some develop end-stage renal disease (ESRD) and some die.
The Codex Committee on Food Hygiene (CCFH) has discussed the issue of STEC
in foods since its 45th Session, and at the 47th Session, in November 2015, it was
agreed that it was an important issue to be addressed (REP 16/FH, 2015)2
. To
commence this work, the CCFH requested the Food and Agriculture Organization
(FAO) and the World Health Organization (WHO) to develop a report compiling
and synthesizing available relevant information, using existing reviews where
possible, on STEC. The CCFH noted that further work on STEC in food, including
the commodities to be focused on, would be determined based on the outputs of
the FAO/WHO consultation.
The information requested by CCFH is divided into three main areas: the global
burden of disease and source attribution; hazard identification and characterization; and monitoring, including the status of the currently available analytical
methods. This report provides an overview of the work undertaken in response to
the request from the CCFH and provides the conclusions and advice of the Expert
Group based on the currently available information.

Sweden – Sweden ‘crypto’ outbreak update: Nearly 400 cases, Cases declining

Outbreak News Today

crypto

Image CDC

 

Since the last report on the Cryptosporidium outbreak in Sweden about two weeks ago, health officials say the number of reported cases has decreased in recent weeks.

Cryptosporidium life cycle/CDC

While cases are declining, the number of cases reported per week remains slightly higher compared to the same period in previous years. To date, some 400 Cryptosporidium cases have been recorded.

Most cases have been reported from Stockholm, Östergötland, Västra Götaland, Halland, Jönköping and Uppsala.

The Public Health Authority analyzes samples from the cases to determine what type of cryptosporidium they have become ill from. Of the 202 samples analyzed so far, 93 have been shown to belong to subtype (A) and 58 belong to subtype B of Cryptosporidium parvum. In addition to this subtype, a number of different subtypes have been detected.

Research – Assessing the microbiological quality of raw goats’ and ewes’ tank milk samples in Switzerland

Science Direct

In recent years, popularity of raw milk has increased in many industrialised countries.

This study (i) enumerated total viable counts (TVC) and Escherichia coli counts, (ii) assessed prevalence of Staphylococcus (S.) aureus, Salmonella spp. and STEC, (iii) screened for methicillin resistant S. aureus (MRSA) and extended-spectrum β-lactamases (ESBL)-producing Enterobacteriaceae in sheep and goat tank milk samples collected throughout Switzerland and (iv) provided further strain characteristics on isolated pathogens and MRSA. One hundred and twenty-three tank milk samples from 116 farms were analysed. The median TVC was 3.8 log cfu mL-1. E. coli was detected in 16 (13.0%) and S. aureus in 18 (14.6%) samples. Polymerase chain reaction for stx genes was positive in 14 (11.4%) samples. MRSA were isolated from 4 (3.3%) samples. Salmonella spp. and ESBL-producing Enterobacteriaceae were not isolated.

Research – Simultaneous Effects of UV-A and UV-B Irradiation on the Survival of Escherichia coli O157:H7, Salmonella Typhimurium, and Listeria monocytogenes in Buffer Solution and Apple Juice

Journal of Food Protection

ABSTRACT

The objective of this study was to evaluate the efficacy of simultaneous UV-A and UV-B irradiation (UV-A+B) for inactivating Escherichia coli O157:H7, Salmonella Typhimurium, and Listeria monocytogenes in both phosphate-buffered saline (PBS) and apple juice. A cocktail of the three pathogens was inoculated into PBS and apple juice, and then the suspensions were irradiated with UV lamps of 356 nm (UV-A) and 307 nm (UV-B). Significant (P < 0.05) log reductions of the three pathogens in PBS and apple juice were observed after a maximum dose of UV-B alone or the UV-A+B treatment, but few reductions were observed upon UV-A treatment alone. At all irradiation times, antagonistic effects were observed for the application of UV-A+B against in E. coli O157:H7, Salmonella Typhimurium, and L. monocytogenes in PBS and apple juice. The degree of antagonistic effect in apple juice was greater than that in PBS. The results of this study suggest that the combined treatment of commercial UV-A and UV-B lamps would be impractical for disinfecting juice products.

HIGHLIGHTS
  • Antimicrobial effect of UV-A+B irradiation in PBS and apple juice was investigated.

  • UV-A+B irradiation was antagonistic for inactivating pathogens in the PBS and juice.

  • The degree of antagonistic effect in apple juice was greater than that in PBS.