Tag Archives: Listeria

DuPont, Listeria

PCR Assay Detects Listeria in Dairy, Produce, RTE Products

By Food Safety Tech Staff
No Comments
DuPont, Listeria
DuPont, Listeria
DuPont BAX System X5 PCR Assay for Genus Listeria

The AOAC Research Institute approved a method extension of Performance Test Method #030502 to include the DuPont BAX System X5 PCR Assay for Genus Listeria. The assay has been validated as a reliable method for detecting the pathogen in frankfurters, smoked salmon, spinach, and cheese, as well as from environmental surfaces. Using the system, automated PCR-based DNA amplification and automatic pathogen detection can be conducted on 32 samples simultaneously within a smaller and more lightweight unit. The system is also validated by AOAC-RI for detecting Salmonella and Listeria monocytogenes in good and environmental samples.  

Gina Kramer
Food Safety Think Tank

Listeria, the Pesky Bug is Everywhere!

By Gina R. Nicholson-Kramer
2 Comments
Gina Kramer

“When a flower doesn’t bloom you fix the environment in which it grows, not the flower.”  A quote, by Alexander Den Heijer, trainer, speaker, purposologist, that rings true in food safety. When there is a contamination issue in food processing, one must fix the environment in which food is being processed. Safe food is a product of a clean environment.

We have better environmental sampling programs in our food manufacturing plants and processing facilities, and we have sanitation standard operating procedures, so why are we seeing a prevalence of Listeria, and in rising numbers?  I recently sat down with Jeff Mitchell, vice president of food safety at Chemstar, about the recent increase in Listeria outbreaks and how you can rid your facility of the dangerous pathogen.

We’re seeing Listeria—in product recalls and outbreaks—over the last couple of years, and in multiple numbers. Why do you think this is happening?

Jeff Mitchell, Gina Kramer, Listeria
My interview with Jeff Mitchell about the increase in Listeria recalls.  Watch the video

Jeff Mitchell: The distribution of Listeria in the environment has not changed, and the processes that we use for processing food really haven’t changed. What’s changed is the way that we collect data. We have PulseNet now, which gathers information. If someone goes to a medical treatment facility with a foodborne illness, they’re going to investigate that and they’re going to get the whole genome sequencing on the pathogen.

There’s a difference between understanding what transient Listeria is and resident Listeria. I think there are a lot of sanitation efforts being put forth to eliminate the resident populations—those are the populations we’re most concerned about, and they’re the ones that are being related back to a lot of these recalls.

If I have resident Listeria in my facility, why can’t I find it?

Food Safety Tech is organizing a Listeria Detection & Control Workshop, May 31 – June 1, 2016 in St. Paul, MN. LEARN MOREMitchell: Resident populations of Listeria are found in a biofilm—most bacteria aggregate within a biofilm. A biofilm is a survival mode for the bacteria; it protects it from sanitizer penetration. That layer actually masks it from sampling. You could swab a surface or an area and not pick it up, because the biofilm is masking it.

Jeff goes on to discuss the type of sanitation program that companies should have in place to get rid of resident Listeria. You can learn about the steps you need to take in my video interview.

Dole Listeria Batch, bagged lettuce

FDA Traces Three More Listeria Cases to Dole’s Bagged Salad

By Food Safety Tech Staff
No Comments
Dole Listeria Batch, bagged lettuce

Dole’s bagged salad was the culprit of three more Listeria cases last month. Last week the FDA released the latest figures on the outbreak, which began in July 2015. An investigation was not initiated until September, and the source of Listeria—a Dole processing facility in Springfield, Ohio—was not known until January 2016. The CDC reports that 15 people, all which were hospitalized, in eight states have been infected with Listeria traced back to the Dole facility since July.

On January 21 Dole told the FDA and CDC that it both stopped producing all packaged salads at the Springfield facility and stated that it would be withdrawing all packaged salads on the market that were produced there. The company initiated the recall of the salads, which were sold under the brand names Dole, Fresh Selections, Simple Truth, Marketside, The Little Salad Bar, and President’s Choice Organics, last week. The bagged salads were distributed in 24 states.

The Public Health Agency of Canada also issued a food recall warning for products made at the Springfield facility. The products were shipped to six Canadian provinces.

USPTO, patent

Sample6 Gets Patent for Phage Engineering Technology

By Food Safety Tech Staff
1 Comment
USPTO, patent

Today Sample6 announced a new patent for phage engineering technology. Issued by the U.S. Patent and Trademark Office, the patent, “Recombinant Phage and Methods”, is the first awarded to the company.

“As an industry, we need to set a new bar for food safety programs – widespread illness outbreaks and massive recalls should not happen in this day and age,” said Tim Curran, CEO of Sample6, in a company release. “Contaminated food should be found and stopped before it ever enters the food chain.”

The Sample6 DETECT/L system is the first in-plant, in-shift pathogen detection for Listeria. A continuation of the company’s effort to prevent contaminated foods from leaving food processing warehouses and distribution centers, the phase-based bacterial detection assay has been approved by USDA and AOAC.

Jeff Mitchell, Gina Kramer, Listeria

The Increase in Listeria Recalls and What You Can Do About It

By Food Safety Tech Staff
1 Comment
Jeff Mitchell, Gina Kramer, Listeria

Why has the food industry been seeing more Listeria outbreaks in recent years? What is the reason behind it? According to Jeff Mitchell, vice president of food safety at Chemstar, the prevalence in Listeria-related recalls may have more to do with the fact that industry is collecting more meaningful data. During a Q&A with Gina Kramer, founder and executive director of Savour Food Safety International, Inc., Mitchell discusses the methods through which industry is collecting data and how food companies should be using a sanitation program to rid facilities of resident Listeria at the 2015 Food Safety Consortium.

Listeria

Fast Facts About Listeria

By Maria Fontanazza
No Comments
Listeria

Attend the Listeria Detection & Control Workshop, May 31–June 1 in St. Paul, MN | LEARN MOREAccording to the CDC’s Foodborne Outbreak Online Database (FOOD Tool), there were 29 Listeria outbreaks between 2010 and 2014, resulting in 325 illnesses and 68 deaths (nearly a 21% fatality rate). In light of the recent reports that the U.S. Department of Justice is looking into Blue Bell Creameries following the Listeria outbreak in its facilities that killed three people, food companies need to have a strong mitigation and control program before it’s too late. The government is placing is a higher level of accountability on employees at all levels within food organizations and no one, including company executives, are immune to it.

“It’s extremely important that we understand how deadly Listeria is,” said Gina Nicholson-Kramer, founder and executive director at Savour Food Safety International, Inc. during a Listeria workshop at the 2015 Food Safety Consortium. “We’re put here to protect our consumer.”

Containing what may be growing (and rapidly spreading) within the nooks and crannies of a facility is a challenge. To learn more about how to prevent product contamination within all areas of food production, read the column by Nicholson-Kramer and Jeff Mitchell, vice president of food safety at Chemstar, Activate Your Listeria Mitigation and Control Program.

 Fast Listeria Facts

Types of Infections

Non-invasive gastroenteritis: Self-limiting, diarrhea, fever, fatigue

Invasive gastroenteritis: Headache, stiff neck, loss of balance

At-Risk Populations

Pregnant women, neonates, elderly, immune-compromised

Where It’s Found

Soil, water, silage, manure, sewage, processing plants

How It Spreads in Facilities

Foot traffic, wheels, forklifts, pallets, boxes, bins

Average Fatality Rate

Up to 25%

Other Traits

Psychrophilic bacteria (grows well in cold temperatures)

Adheres to surfaces and creates biofilms on equipment that is difficult to remove (Preventing transient Listeria from becoming resident Listeria is critical)

Department of Justice seal

Department of Justice Reportedly Investigating Blue Bell Creameries Over Listeria Outbreak

By Maria Fontanazza
No Comments
Department of Justice seal

Several news outlets have reported that the U.S. Department of Justice (DOJ) is investigating Blue Bell Creameries following the Listeria outbreak that resulted in three deaths in Kansas and 10 illnesses in Arizona, Kansas, Oklahoma and Texas between January 2010 and January 2015.

According to The Wall Street Journal, the DOJ is mainly interested in the involvement of company executives—did they know about the Listeria contamination? If so, what did they do about it?

Last April Blue Bell recalled all of its products over concerns of Listeria contamination and shut down the production line where the products were manufactured.

Blue Bell started a limited-release of its ice cream products last August. The company has not yet issued a response to the reports about the DOJ investigation, but last week it announced that it would begin a “bonus phase” of product re-entry in El Paso, Texas, Little Rock, Arkansas, and Memphis, Tennessee. This is scheduled to be followed by phase five of market re-entry in parts of Tennessee, Alabama, Georgia, Kentucky, North Carolina, South Carolina, and Virginia the week of January 18, and then shipment into all of Florida, southern Georgia and southern South Carolina the week of January 25.

The company stated in a press release that after phase five is completed, all of Blue Bell’s furloughed employees will have returned to work.

Following the landmark sentencing of Peanut Corporation of America executives last fall, industry will be watching the outcome of the investigation very closely.

Dollar

Food Safety Testing Market to Hit $6.4 Billion by 2020

By Food Safety Tech Staff
1 Comment
Dollar

As a result of the rising incidence of food contamination and foodborne illness outbreaks such as Listeria, Salmonella and E.coli, the North American market for food safety testing is expected to hit $6.4 billion within the next four years. According to a recent report by Markets and Markets, the 7.4% compound annual growth rate will also be fueled by the following factors:

  • Actions taken by food manufacturers to implement more testing at different stages of the chain in order to strengthen food safety standards
  • Increased concern to reduce the amount of product recalls
  • Increased consumer interest in ingredients and food safety
  • FSMA and the regulatory effort to reduce the presence of pathogens or contaminants in food

Learn more about how food laboratories are working to detect dangerous pathogens.

The Markets and Markets report:“North American Food Safety Market by Contaminant , Technology, Food Tested (Meat & Poultry, Dairy, Fruit & Vegetable, Processed Food), & by Country – Trend & Forecast to 2020″

Update: (1/14/2016): According to a report released by Research and Markets on January 14, the global food safety testing market can expect to achieve a 7.1% CAGR over the next five years, hitting $16.2 billion by 2020.

Salmonella outbreak linked to cucumbers

Worst Foodborne Illness Outbreaks of 2015

By Food Safety Tech Staff
1 Comment
Salmonella outbreak linked to cucumbers

The CDC highlighted the following cases of contaminated food that resulted in foodborne illness outbreaks for 2015.

Pathogen Company and/or Product Cases States Hospitalizations Deaths Status
Listeria Blue Bell Ice Cream 10 4 10 3 Investigation complete
Listeria Karoun Dairies, Inc. (soft cheese) 30 10 28 3 Investigation complete
E.coli O26 Chipotle Mexican Grill 53 9 20 0 Investigation ongoing
Salmonella Cucumbers 838 38 165 4 CDC provided last update 11/2015
Salmonella Pork 192 5 30 0 CDC says outbreak “appears” to be over

 

FSMA

Are You Ready for the Produce Rule? You Just Might Be

By Marsha Madrigal
No Comments
FSMA

At last the new Produce Rule is out, issued on November 13, 2015.  For the first time in FDA history, the rule establishes a science-based minimum standard for growing, harvesting, packing and holding of fruits and vegetables grown for human consumption.  The rule can be found in Part 112 of the Code of Federal Regulations (CFR). It applies to both domestic and imported produce.

The new rule provides assurance that produce on the market is not adulterated under the Food, Drug, and Cosmetic Act.  It will accomplish this by establishing procedures, processes and practices that are known to minimize the risks of serious adverse health consequences or death to humans, and to prevent the introduction of known biological hazards into and or on produce.

The definition for a farm, covered under the rule, includes two kinds of farming operations, primary production farm and secondary activities farm. The primary production farm operates under one management, and the secondary activities farm is an operation. Where as the primary production farm owns, or jointly owns, a majority of interest in the secondary activities farm.

Food Safety Consortium
During the FDA Town Hall, an audience member asks about the Produce Rule and the work being done with Mexico. Watch the video

For the most part, the new mandated FDA Produce Rules, mirror what farmers, packers and others in the farm business have been doing all along.  For years now, produce buyers have required some kind of written guarantee from their suppliers such as a third-party audit certificate showing that the supplying farm or packing shed is complying with the farm food safety standards. Most farms and packing sheds have already undergone, if not one, but perhaps two or more third-party audits such as a Good Agricultural Practices (GAP) or, one of the Harmonized GAP audits, or a Good Manufacturing Practices (GMP) audit, or one of the Global Food Safety Initiative (GFSI) audits such as GlobalGAP, Safe Quality Foods (SQF) or BRC Global Standards (BRC).

This means that those covered under the Produce Rule for growing, harvesting, packing and holding of fruits and vegetables grown for human consumption and have received a third-party audit should have no trouble achieving compliance with the new Produce Rule.

The above-mentioned third-party standards cover most aspects of the key requirements of the Produce Rule regarding agricultural water, biological soil amendments, domesticated and wild animals, worker training, health and hygiene, and equipment, tools, and buildings.

However, some key requirements of the new rule not noted in existing third-party standards include:

  • Water testing of untreated water, sample collection and survey creation for agricultural water.
  • Microbial standard limits for detectable amounts of microorganisms to include Listeria monocytogenes, Salmonella species, and E. coli 0157:H7 for the treatment process of soil amendments, including manure.
  • The final Produce Rule includes requirements to help prevent the contamination of sprouts. For example, requires testing of spent sprout irrigation water for pathogens and requires environmental monitoring for Listeria. Documentation or letters from seed and/or bean supplier for the prior treatment of seed and beans are acceptable.
  • The requirements of Domesticated and Wild Animals relies more on monitoring and assessing conditions during growing season. If you find evidence of potential contamination like animal excreta, you must take action and evaluate whether produce can be harvested or if there is a likelihood of contamination. The produce must not be harvested.

This rule does not apply to:

  • Farms that have an average annual value of produce sold during the previous three year period of $25,000/yea
  • Produce for personal or on-the farm consumption
  • If the produce is on the list of “rarely consumed raw commodities” such as sweet potatoes and
  • A food grain such as wheat or oats

The rule provides also for exemptions:

  • Produce that will receive commercial processing (kill-step) to reduce microorganisms of public health concerns.
  • Provides a qualified exemption and modification requirement for farms that meet certain requirements based on monetary value and direct sales to qualified end users such as consumers or restaurants. The farm must also meet associated modified requirements like establishing and maintaining certain documentation.

Under certain conditions the FDA may withdraw a farm’s qualified exemption.

The rule focuses on sources of produce contamination found in the past: Agricultural water, biological soil amendments, domesticated and wild animals, worker training, health and hygiene, and equipment, tools and buildings.

This rule and others under FSMA such as Preventive Controls for Human Food, Preventive Controls for Animal Food, and the Foreign Supplier Verification Program are a long overdue yet great achievement for FDA. The agency now shifts its gear into focusing on preventing food safety problems instead of reacting to food safety outbreaks.

FDA estimates that about 348,000 illnesses per year will be prevented by the implementation of this rule.

The compliance dates for the new rule are staggered and based on business size.

Resources

  1. Produce Rule: Standards for the Growing, Harvesting, Packing, and Holding of Produce for Human Consumption
  2. FSMA Webinar Series: Final Rules for Produce Safety, Foreign Supplier Verification Program (FSVP), and Third Party Auditors