by Marion Nestle

Currently browsing posts about: Food-safety

Apr 28 2021

FDA issues warnings to leafy green growers and their cattle raising neighbors

Leafy greens contaminated with toxic E. coli make eaters very sick (this is an understatement).

Toxic E. coli are excreted by cattle raised in the vicinity of lettuce and spinach fields.

But leafy green safety is overseen by FDA whereas everything having to do with food animals is overseen by USDA.

This is why the latest moves by FDA about leafy green safety are so noteworthy.

  • The FDA is warning leafy green growers that they must take better precautions to prevent E. coli contamination.
  • It also is warning cattle growers that they must prevent wastes from contaminating leafy green fields.

The Big Question: Will—can—the FDA force cattle ranchers and leafy green growers to adhere to food safety precautionary measures?

Let’s hope.

Here are the relevant documents:

FDA statement on release of a report on a 2020 outbreak

The findings of foodborne illness outbreak investigations since 2013 suggest that a likely contributing factor for contamination of leafy greens has been the proximity of cattle. Cattle have been repeatedly demonstrated to be a persistent source of pathogenic E. coli, including E. coli O157:H7.

Considering this, we recommend that all growers be aware of and consider adjacent land use practices, especially as it relates to the presence of livestock, and the interface between farmland, rangeland and other agricultural areas, and conduct appropriate risk assessments and implement risk mitigation strategies, where appropriate.

Report on the 2020 outbreak investigation

The analysis has confirmed a positive match to the outbreak strain in a sample of cattle feces, which was collected during follow-up investigations on a roadside, uphill from where leafy greens or other food identified in the traceback investigation were grown. While the finding does not provide definitive information on how E. coli may have contaminated product during the growing and harvesting season, it does confirm the presence of a strain of E. coli O157:H7 that causes recurring outbreaks in a more narrowly defined growing region and a potential, continued source of contamination.

Leafy Green STEC Action Plan

As outbreaks have continued to occur, despite significant efforts in recent years, greater emphasis will be needed around such complex issues as adjacent land use, agricultural water, and understanding likely routes by which human pathogens may contaminate leafy greens.

Former FDA food safety official Michael Taylor’s comment on these documents

FDA declared the recurring strain implicated in the 2020 outbreak to be a “reasonably foreseeable hazard,” which FDA attributed to the presence of cattle on land adjacent to growing fields.  This finding seems obvious and shouldn’t be surprising. The surprise, however, is that FDA used regulatory language to express its finding and spelled out the implications: farms covered by the FSMA produce safety rule “are required to implement science and risk-based preventive measures” to minimize the risk of serious illness or death from the E. coli hazard…I do not anticipate FDA taking judicial action to enforce its April 6 finding, absent egregious practices or clear negligence in a particular leafy green growing situation. I do see, however, a heightened sense of urgency at FDA and frustration that efforts to date have not solved the leafy greens safety problem. I share that frustration.    

Food safety lawyer Bill Marler’s comment

The FDA took specific aim at California growers as the cause of repeated and ongoing outbreaks, putting the responsibility of combating the outbreaks squarely on the growers.

FDA’s investigations into foodborne illness outbreaks are available from its outbreak page.  These are the ones from 2020.

 

Apr 16 2021

Weekend reading: Safety First for Restaurants

The Aspen Institute’s Food & Society initiative, in collaboration with several other groups, has jointly issued a guide for restaurants on how to protect staff and customers from Covid-19.

The new guide includes:

  • The Diner Code of Conduct, which lays out expectations for dining indoors.
  • The COVID-19 Pledge, which explains the expectations of restaurant operators and workers to create a safe indoor dining environment.
  • Ventilation Guidelines, which give restaurants practical, affordable, and accessible help with ventilation systems and best practices.

You can get the whole thing here.

As Corby Kummer, Food & Society’s director, explains,

We’ve fine-tuned Safety First to meet the on-the-ground needs of restaurants as they reopen as quickly, economically, and safely as possible—translating the science of health officials and engineering associations into the day-to-day realities of businesses small and large. That’s what restaurants told us they needed, and health departments told us too.

The guide puts everything in one place: how Covid-19 is transmitted; how to prevent it,; what diners, waiters, cooks, and everyone else in a restaurant should do there and at home; how to deal with restrooms; and how to deal with any number of possible scenarios.

It’s short, easy to read, and amazingly comprehensive and useful.

We all want restaurants to re-open safely.  Here’s how, with thanks to Aspen and its heavy-duty collaborators:

  • World Central Kitchen
  • The National Restaurant Association
  • The James Beard Foundation
  • The Independent Restaurant Coalition
Apr 13 2021

The latest pet food recalls: a food safety system issue

A decade ago, I wrote or co-authored two books about pet food (Pet Food Politics: The Chihuahua in the Coal Mineand Feed Your Pet Right).  Why?  Pet foods are part of the US food system, not only because they are a good use of the waste products of human food production, but also because if there are problems with pet foods you can bet that similar problems will occur in production of foods for humans.

The FDA has a web page where it tracks recalls and market withdrawals of pet foods.  To search for pet food recalls, you need to filter for Animal and Veterinary.  This shows that there have been five product recalls in March 2021 alone, four of them because of possible Salmonella contamination.

The largest is of products from Midwestern Pet Foods.  This recall is especially noteworthy for the length of the list of recalled products.

These involve multiple products in each of several brands:

  • Earthborn Holistic
  • Meridian
  • Pro Pac
  • Sportmix
  • Unrefined
  • Venture
  • Wholesomes

Midwestern Pet Foods issued a press release explaining what happened and what needs to happen.

The recall was as the result of a routine sampling program by the company which revealed that the finished products may
contain the bacteria.
Retailers and distributors should immediately pull recalled lots from their inventory and shelves. Do not sell or donate the
recalled products. Retailers are encouraged to contact consumers that have purchased the recalled products if the means
to do so exists.
Do not feed the recalled products to pets or any other animals. Destroy the food in a way that children, pets and wildlife
cannot access them. Wash and sanitize pet food bowls, cups and storage containers. Always ensure you wash and
sanitize your hands after handling recalled food or any utensils that come in contact with recalled food.

On its website, Midwestern Pet Foods says:

At Midwestern Pet Foods, we’ve been feeding pets for generations. We’re a family-owned business now in our fourth generation. Over the years, we’ve learned a lot about family, pet companions and making high-quality pet food & treats. We still have those same Midwestern values that Grandpa Nunn had back in 1926!

If Salmonella is in or on pet foods, there has been a breakdown in food safety procedures.  Salmonella does not usually make pets sick, but it does sicken their owners.  This particular recall demonstrates the same problem I wrote about in Pet Food Politics: one manufacturer makes lots and lots of different products.  Recall information does not always get to individual pet foods stores.  It’s best to keep up with what the FDA is posting.

Caveat emptor.

 

Feb 11 2021

The cost of foodborne illness

The USDA publishes estimates of how much foodborne illness costs Americans.  It does this for 15 pathogens, one at a time:

The Cost Estimates of Foodborne Illnesses data product provides detailed data about the costs of major foodborne illnesses in the United States, updating and extending previous ERS research. This data set includes the following:

  • Detailed identification of specific disease outcomes for foodborne infections caused by 15 major pathogens in the United States
  • Associated outpatient and inpatient expenditures on medical care
  • Associated lost wages
  • Estimates of individuals’ willingness to pay to reduce mortality resulting from these foodborne illnesses acquired in the United States.

If you click on the links below, you get an Excel spreadsheet.

I clicked on Salmonella (non-typhoidal); the estimate for its costs in 2018 is basically $4 billion ($4, 142,179.161).

It would be really nice if USDA’s Economic Research Service would add these all up for us, but it’s short staffed (remember the forced move of the agency to Kansas City that I complained about so much last year.

But foodborne illness costs a lot, in health care costs, lost work and productivity, and all the other bad things that happen when people get sick.

It’s best to do everything possible to prevent foodborne illness before it occurs.

Last Updated
Current Pathogen Files
Cost of foodborne illness estimates for Campylobacter (all species) 1/29/2021
Cost of foodborne illness estimates for Clostridium perfringens 1/29/2021
Cost of foodborne illness estimates for Cryptosporidium parvum 1/29/2021
Cost of foodborne illness estimates for Cyclospora cayetanensis 1/29/2021
Cost of foodborne illness estimates for Escherichia coli O157 1/29/2021
Cost of foodborne illness estimates for non-O157 Shiga toxin-producing Escherichia coli 1/29/2021
Cost of foodborne illness estimates for Listeria monocytogenes 1/29/2021
Cost of foodborne illness estimates for Norovirus 1/29/2021
Cost of foodborne illness estimates for Salmonella (non-typhoidal) 1/29/2021
Cost of foodborne illness estimates for Shigella (all species) 1/29/2021
Cost of foodborne illness estimates for Toxoplasma gondii 1/29/2021
Cost of foodborne illness estimates for Vibrio parahaemolyticus 1/29/2021
Cost of foodborne illness estimates for Vibrio vulnificus 1/29/2021
Cost of foodborne illness estimates for Vibrio (all other non-cholera species) 1/29/2021
Cost of foodborne illness estimates for Yersinia enterocolitica 1/29/2021
Jan 27 2021

More good news: USDA reverses increase in poultry line speeds

President Biden has blocked the Trump Administration’s allowance of increased speeds on poultry processing lines.

I first heard about this from an announcement from Food and Water Watch.

As described by The Counter, the Trump rule allowed facilities “to slaughter chickens at a rate of 175 birds per minute—equivalent to 3 birds a second—up from the industry standard of 140 birds per minute.”  

As the Washington Post describes, poultry processing plants with higher line speeds are more dangerous for workers.

The history of the rule changes over the past few years is given on the USDA website.

But line speeds are only one of the problems with poultry safety.  Salmonella is another.  The history of attempts to reduce Salmonella in poultry is summarized by Michael Taylor, former USDA official, at FoodSafetyNews.com: “Our poultry safety regulation isn’t working: It’s past time to fix it.”

This is why food safety groups have filed a petition

urging FSIS [USDA’s Food Safety and Inspection Service] to modernize its food safety standards by establishing enforceable standards targeting Salmonella types of greatest public health concern while reducing all Salmonella and Campylobacter in poultry. We also ask that FSIS ensure the safety of the food supply chain from farm to fork by requiring slaughter establishments to adopt and implement effective supply chain programs, and by publishing finalized versions of its “DRAFT FSIS Compliance Guidance for Controlling Salmonella and Campylobacter in Raw Poultry.”

Biden’s first 100 days seems like a terrific opportunity to make poultry production safer for workers and for people who eat the poultry produced in these plants.

 

 

 

Aug 11 2020

The latest food recall: onions

I don’t often write about foodborne illness outbreaks because there are so many of them, but this one is unusual: it involves hundreds of people who got sick from eating onions produced by Thomson International.

The CDC says:

Do not eat, serve, or sell recalled onions from Thomson International, Inc., or food made with these onions. Onion types include red, white, yellow, and sweet yellow varieties. Other companies have also issued recalls of foods, like chicken salads, made with recalled onions.

The caseload so far:

The states where cases have been identified:

The timeline of case reports:

And here’s why there is such a long lag in reporting cases:

Advice: Make sure your onions don’t come from Thomson.  If you aren’t sure, thoroughly wash (sterilize!) everything they may have come in contact with (knives, cutting boards, refrigerator bins).  If you don’t want to throw them out, cook them.  Do not eat them raw.

Jul 29 2020

Don’t raise industrial chickens near orchards, please

For two years, the investigators took swab samples of soil surface, air, and leaves in an almond orchard 35 meters downwind from an industrial poultry farm.  They compared the samples to those collected from two almond orchards (controls) nowhere near a poultry operation.

E. coli was isolated from 41 of 206 (20%) and 1 of 207 (0.48%) air samples in the almond-poultry and control orchards, respectively….On average, the amount of dry solids on leaves collected from trees closest to the poultry operation was more than 2-fold greater than from trees 120 m into the orchard or from any of the trees in the control orchards.

Members of the family Staphylococcaceae—often associated with poultry—were, on average, significantly (P < 0.001) more abundant in the phyllosphere of trees closest to the poultry operation (10% of relative abundance) than in trees 120 m into the orchard (1.7% relative abundance) or from any of the trees in control orchards (0.41% relative abundance).

Poultry-associated microorganisms from a commercial operation transferred a short distance into an adjacent downwind almond orchard.

Contamination of leafy greens grown in California and Arizona near large cattle operations has been a problem for a long time.

This new study adds two pieces of information:

  • Toxic bacteria can travel downwind in air.
  • Poultry operations are just as contaminating as cattle operations.

The moral of this story: Do not grow nuts or fruit or vegetables near industrial meat or poultry operations.

Jul 7 2020

Coca-Cola drops Odwalla

Coca-Cola, which bought Odwalla juices in 2001, is discontinuing the brand and getting rid of 300 jobs and 230 trucks.

Why?  People aren’t buying it: too much sugar, and too much competition.

This is the end of a long saga.  Odwalla started out selling unpasteurized juices and was doing fine until it got too big.

Against company policy, it used apples that had fallen on the ground to make apple juice.  Some were contaminated with E. coli O157:H7, which carried a shiga toxin that caused illnesses and deaths.  In 1998:

Odwalla, based in Half Moon Bay, Calif., pleaded guilty to 16 counts of unknowingly delivering ”adulterated food products for introduction into interstate commerce” in the October 1996 outbreak, in which a batch of its juice infected with the toxic bacteria E. coli O157:H7 sickened people in Colorado, California, Washington and Canada. Fourteen children developed a life-threatening disease that ravages kidneys.

Odwalla paid a $1.5 million fine and was put on probation.  Coca-Cola bought the company anyway.

Food safety lawyer Bill Marler, who represented some of the victims, some of whom have lifelong complications, says  Good riddance to bad rubbish.

During the course of the litigation, we uncovered that Odwalla had attempted to sell its juice in 1996 to the U.S. Army – no, not as a biological weapon – but to be sold in base grocery stores to our men and women service members and their families. The Army rejected the product – because it was not fit for military consumers.

His post includes the Army’s letter of rejection:  “We determined that your plant sanitation program does not adequatel assure product whoolesomeness for military consumers.”

It also includes some emails suggesting that Odwalla did not want to test for pathogens because they might find some:  “IF THE DATA is bad, what do we do about it.  Once you create a body of data, it is subpoenable.”

I wrote about the Odwalla events in my book, Safe Food.

The Odwalla outbreak provided convincing proof that unpasteurized and uncooked “natural” foods could contain the same pathogens as meat and poultry if they had the bad luck to come in contact with contaminated animal manure or meat.  For the industry, the lessons were mixed.  If food companies failed to reduce pathogens, their liability costs could be substantial–in money, time, legal penalties, and reputation—but these problems could be temporary and soon overcome (p. 99).

The end of a saga, indeed.