Category Archives: Food Hygiene

USA – CDC Confirms Multistates E.coli O121 Outbreak

Posted on March 30, 2013 by | Leave a comment

Food Safety NewsEcoli Istock

The U.S. Department of Agriculture Food Safety and Inspection Service has posted a distribution list of where affected products were sent. That list includes Wal Mart stores nationwide, Winn-Dixie stores in Florida, and a variety of retailers in Michigan.

At least 24 people in 15 states have fallen ill with E. coli O121 in an outbreak traced back to Farm Rich brand frozen pizzas, quesadillas, philly cheese steaks and mozzarella bites, the U.S. Centers for Disease Control and Prevention has confirmed, following initial reports Thursday evening.

Seven people have been hospitalized in connection to the products, which were sold nationwide. One patient has developed hemolytic uremic syndrome.

CDC

  • A total of 24 persons infected with the outbreak strain of Shiga       toxin-producing Escherichia coli O121 (STEC O121) have been       reported from 15 states.
    • 78% of ill persons are 21 years of age or younger.
    • 33% of ill persons have been hospitalized. One ill        person developed hemolytic uremic syndrome (HUS), a type of kidney        failure, and no deaths have been reported.
  • CDC and state public health officials are interviewing ill persons to       obtain information regarding foods they might have eaten and other       exposures in the week before illness.
    • Information available to date indicates that        consumption of Farm Rich brand frozen food products is one likely source        of infection for the ill persons in this outbreak.
  • Testing conducted by the New York State Department of Health,       Wadsworth Center Laboratory, identified the outbreak strain of STEC O121       in an open package of Farm Rich brand frozen chicken quesadillas       from an ill person’s home.

 

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Posted in Bacteria, E.coli, E.coli O121, Eurofins Laboratories, Food Hygiene, Food Illness, Food Inspections, Food Micro Blog, Food Microbiology, Food Poisoning, Food Safety, Food Safety Alert, Food Testing, Foodborne Illness, Hygiene, Methods, Microbiology, outbreak, Pathogen

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Research – Livestock to Human Transmission of MRSA Confirmed

Posted on March 30, 2013 by | Leave a comment

Food Safety NewsStaphylococcus

Using whole genome sequencing, scientists have found conclusive evidence that a type of methicillin-resistant Staphylococcus aureus (MRSA) that caused human infections in Denmark came from livestock – adding to concerns that food animals are a significant MRSA reservoir for human infections.

While previous research has suggested that MRSA transfers from animals to humans, including a U.S. study last year that looked at “pig-MRSA,” the study published this week in EMBO Molecular Medicine provides the strongest evidence to date that this phenomenon is occurring and provides fodder to those advocating for greater limits on antibiotics in agriculture.

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Posted in Bacteria, Food Hygiene, Food Micro Blog, Food Microbiology, Food Safety, Food Technology, Food Testing, Microbiology, MRSA, Pathogen, Research, Staphylococcus aureus, Toxin

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Canada – Recall – Gelfite Fish – Clostridium botulinum

Posted on March 30, 2013 by | Leave a comment

CFIACIFA

The Canadian Food Inspection Agency (CFIA) and Central-Epicure Food Products Ltd. are warning the public not to consume the Central-Epicure brand Gefilte Fish, Ready to Serve, Sweet and Savoury, described below because they may be contaminated with Clostridium botulinum.Toxins produced by these bacteria may cause botulism, a life-threatening illness.

There have been no reported illnesses associated with the consumption of this product.

The manufacturer, Central-Epicure Food Products Ltd., Toronto, Ontario, is voluntarily recalling the affected product from the marketplace.  The CFIA is monitoring the effectiveness of the recall.

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Posted in Bacteria, Clostridium botulinum, Eurofins Laboratories, Food Hygiene, Food Inspections, Food Micro Blog, Food Microbiology, Food Poisoning, Food Safety, Food Safety Alert, Food Testing, Microbiology, Pathogen, Poisoning, Recall, Toxin, Uncategorized

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USA – Norovirus Suspected – O’Hare International Airport

Posted on March 29, 2013 by | Leave a comment

Daily HeraldNorwalk_Caspid

The stomach ailment that grounded a group of Scandinavian tourists likely was not a Chicago souvenir, officials said Tuesday.

Seven members of a tour group fell ill Monday night before boarding a Scandinavian Airlines aircraft at O’Hare International Airport and were taken to nearby hospitals around 11 p.m

Later, two other travelers took sick after boarding Flight 944, which led the pilot to require all members of the group to leave the airplane before it departed for Copenhagen, Chicago Fire Department spokesman Larry Langford said.

“The pilot made the decision not to have anyone on the tour on his aircraft as he didn’t want anyone becoming violently ill over the ocean,” Langford said.

The Norwegian tourists numbered about 52 people, authorities said, and were on a bus trip from Memphis. Tenn., to Chicago.

Chicago Department of Public Health investigators are checking with food vendors and others with whom the group came into contact. It’s thought the bug was contracted outside of Chicago, spokesman Brian Richardson said.

The preliminary diagnosis is the norovirus, a contagious virus that can cause vomiting and diarrhea. It’s spread through contaminated food or from contact with infected people and surfaces.

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Posted in Food Hygiene, Food Illness, Food Inspections, Food Micro Blog, Food Microbiology, Food Poisoning, Food Safety, Food Testing, Food Virus, Foodborne Illness, Illness, Microbiology, Norovirus, outbreak, Pathogen

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USA – Hawaii – E.coli O157 Outbreak

Posted on March 29, 2013 by | 1 comment

Food Poisoning Journal

Lisa Kubota of Hawaii News Now reports that investigators with the Hawaii Department of Health are looking into at least nine people have now become ill from E. coli O157:H7.  The confirmed cases consist of three adults and six children. All of them live on Oahu except for a Canadian visitor who spent time on Oahu, but was later diagnosed on the Big Island. Officials are having trouble pinpointing the source of the infections.

Oahu healthcare providers recently received a letter from health officials warning them to be on the lookout for E. coli O157:H7. Around the same time, Dr. James Ireland saw a 67-year-old patient with symptoms like severe diarrhea and abdominal cramps.  Ireland said the man is now recovering after being hospitalized. There have been a total of 11 cases so far this year, including two unrelated to the current cluster. There were 20 last year, 9 the previous year, and 29 in 2010.

According to the state, three of the children in this latest group developed a life-threatening complication called Hemolytic Uremic Syndrome.

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Posted in Bacteria, E.coli, E.coli O157, Food Hygiene, Food Illness, Food Inspections, Food Micro Blog, Food Microbiology, Food Poisoning, Food Safety, Food Safety Alert, Food Testing, Foodborne Illness, Hygiene, Illness, Microbiology, outbreak, Pathogen

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Research – Poultry Probiotic – Fresh Fruit Bacterial Loading

Posted on March 28, 2013 by | Leave a comment

Science Direct 
A strain of probiotic bacteria that can fight harmful bacterial infections in poultry has the ability to change its coat, according to new findings from the Institute of Food Research

Science Direct

Fresh fruit and vegetables carry an abundance of bacteria on their surfaces, not all of which cause disease. In the first study to assess the variety of these non-pathogenic bacteria, scientists report that these surface bacteria vary depending on the type of produce and cultivation practices.

 

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Posted in Bacteria, Food Hygiene, Food Micro Blog, Food Microbiology, Food Safety, Food Testing, Methods, Microbiology, Research

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RASFF Alerts – Salmonella – Sunflower Seed – Chicken

Posted on March 28, 2013 by | Leave a comment

RASFF – Salmonella Montevideo (present /25g) in sunflower seed expeller from Ukraine in Germany

RASFF – Salmonella (present /25g) in sunflower seed cake from Ukraine in Poland

RASFF – Salmonella Heidelberg in frozen chicken cuts and offal (Gallus gallus) from Brazil in Spain

 

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Posted in Bacteria, Food Hygiene, Food Inspections, Food Micro Blog, Food Microbiology, Food Safety, Food Safety Alert, Food Testing, RASFF, Salmonella

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USA – Publix Recall Salad – Listeria monocytogenes

Posted on March 27, 2013 by | Leave a comment

Food Poisoning Journal

Publix Super Markets is issuing a voluntary recall for Publix Deli Tri Fruit and Grain Salad since it may be adulterated with Listeria monocytogenes. Publix received notification of the potential contamination from their supplier, Allison’s Gourmet Kitchens. Publix Deli Tri Fruit and Grain Salad, UPC # 41415-39662, was distributed in Alabama, Florida, Georgia, South Carolina and Tennessee. Product was sold in pre-packaged 12 ounce containers, and this recall involves all product sold with use by dates of 4/5/2013, 4/14/2013 and 4/17/2013.

 

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Posted in Bacteria, Food Hygiene, Food Inspections, Food Micro Blog, Food Microbiology, Food Safety, Food Safety Alert, Listeria, Listeria monocytogenes, Microbiology, Pathogen, Recall

Research – Cranberry Antimicrobial – Multiple PCR for Pathogens

Posted on March 27, 2013 by | Leave a comment

Science Direct

The antimicrobial properties of the American cranberry were studied against Escherichia coli O157:H7, Listeria monocytogenes, and Lactobacillus rhamnosus to determine the effects on growth inhibition, membrane permeability, and injury. Cranberry powder was separated using a C-18 Sep-Pak cartridge into sugars plus organic acids (F1), monomeric phenolics (F2), and anthocyanins plus proanthocyanidins (F3). Fraction 3 was further separated into anthocyanins (F4) and proanthocyanidins (F5) using an LH-20 Sephadex column. Each fraction was diluted in the brain heart infusion (BHI) broth to determine the minimum inhibitory/bactericidal concentrations (MIC/MBC). L. monocytogenes was the most susceptible to cranberry fraction treatment with the lowest MIC/MBC for each treatment, followed by E. coli O157:H7 and L. rhamnosus. Membrane permeability and potential was studied using LIVE/DEAD viability assay and using Bis (1, 3-dibutylbarbituric acid) trimethine oxonol (DiBAC4), respectively. L. rhamnosus demonstrated the highest permeability followed by E. coli O157:H7, and L. monocytogenes. L. rhamnosus demonstrated the highest recovery followed by E. coli O157:H7, and L. monocytogenes. Each cranberry fraction demonstrated membrane hyperpolarization at their native pH, while F2, F3, and F5 demonstrated membrane depolarization at neutral pH. With this knowledge cranberry compounds may be used to prevent maladies and potentially substitute for synthetic preservatives and antibiotics.

Science Direct

We developed a rapid and reliable technique for simultaneous detection of Salmonella Typhimurium, Escherichia coli O157:H7 and Listeria monocytogenes that can be used in food products. Magnetic nano-beads (MNBs) based immunomagnetic separation (IMS) was used to separate the target bacterial cells while multiplex PCR (mPCR) was used to amplify the target genes. To detect only the viable bacteria, propidium monoazide (PMA) was applied to selectively suppress the DNA detection from dead cells. The results showed the detection limit of IMS-PMA-mPCR assay was about 102 CFU/ml (1.2 × 102 CFU/ml for S. Typhimurium, 4.0 × 102 CFU/ml for E. coli O157:H7 and 5.4 × 102 CFU/ml for L. monocytogenes) in pure culture and 103 CFU/g (5.1 × 103 CFU/g for S. Typhimurium, 7.5 × 103 CFU/g for E. coli O157:H7 and 8.4 × 103 CFU/g for L. monocytogenes) in spiking food products samples (lettuce, tomato and ground beef). This report has demonstrated for the first time, the effective use of rapid and reliable IMS combined with PMA treatment and mPCR assay for simultaneous detection of viable S. Typhimurium, E. coli O157:H7 and L. monocytogenes in spiked food samples. It is anticipated that the present approach will be applicable to simultaneous detection of the three target microorganisms for practical use.

 

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Posted in Bacteria, E.coli, E.coli O157, Food Hygiene, Food Illness, Food Micro Blog, Food Microbiology, Food Poisoning, Food Safety, Food Testing, Foodborne Illness, Listeria, Listeria monocytogenes, Microbiology, Pathogen, Salmonella

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USA Research – Microbiology of RTE Foods In University Canteens – Control of Pathogens on Fresh Cut Fruit

Posted on March 27, 2013 by | Leave a comment

Science Direct –

During a 10-year inspection survey (2001–2010), a microbiological study of ready-to-eat (RTE) foods and ready-to-bake frozen pastries from 15 canteens of the university campus was undertaken to determine their microbiological quality. The cumulative study revealed that the aerobic colony counts for the RTE product groups were as follows: from 106 to 108 CFU/g for 50% of sandwiches; under the detection limit (<10 CFU/g) for 88.6% of oven baked pastries; <105 CFU/g for 86.5% of desserts oven baked; from 103 to 109 CFU/g for desserts with dairy cream. The highest mean Enterobacteriaceae counts were recorded for desserts with dairy cream. The highest percentages of foodborne pathogens were: 20% Listeria monocytogenes and 12.5% Staphylococcus aureus in desserts with dairy cream; 17.5% Salmonella spp. and 8.5% presumptive Escherichia coli O157 in sandwiches; 14.6% Bacillus cereus in oven baked pastries. Aerobic colony counts were in the range 107–108 CFU/g for 48.8% of frozen pastries; whereas Enterobacteriaceae counts between 103 and 104 CFU/g were detected in 35.3%. Foodborne pathogens prevalences for frozen pastries were as follows: B. cereus, 31.8%; Salmonella spp., 28.6%; presumptive E. coli O157, 25%; S. aureus, 8.7%; L. monocytogenes, 8.7%. Improved sanitary conditions in the processing plants and precautionary measures are necessary for consumer protection.

Science Direct

The consumption of fresh-cut fruit has substantially risen over the last few years, leading to an increase in the number of outbreaks associated with fruit. Moreover, consumers are currently demanding wholesome, fresh-like, safe foods without added chemicals. As a response, the aim of this study was to determine if the naturally occurring microorganisms on fruit are “competitive with” or “antagonistic to” potentially encountered pathogens. Of the 97 and 107 isolates tested by co-inoculation with Escherichia coli O157:H7, Salmonella and Listeria innocua on fresh-cut apple and peach, respectively, and stored at 20 °C, seven showed a strong antagonistic capacity (more than 1-log unit reduction). One of the isolates, CPA-7, achieved the best reduction values (from 2.8 to 5.9-log units) and was the only isolate able to inhibit E. coli O157:H7 at refrigeration temperatures on both fruits. Therefore, CPA-7 was selected for further assays. Dose-response assays showed that CPA-7 should be present in at least the same amount as the pathogen to adequately reduce the numbers of the pathogen. From the results obtained in in vitro assays, competition seemed to be CPA-7’s mode of action against E. coli O157:H7. The CPA-7 strain was identified as Pseudomonas graminis. Thus, the results support the potential use of CPA-7 as a bioprotective agent against foodborne pathogens in minimally processed fruit.

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Posted in Bacillus, Bacillus cereus, Bacteria, E.coli, Food Hygiene, Food Micro Blog, Food Microbiology, Food Safety, Food Safety Alert, Food Testing, Foodborne Illness, Hygiene, Microbiology, Pathogen, Pseudomonas, Research, Salmonella

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