What is the infectious dose of Listeria? Who are susceptible?

The relationship between the number of ingested Listeria monocytogenes cells in food and the likelihood of developing listeriosis is not well understood.

listeria4Data from an outbreak of listeriosis linked to milkshakes made from ice cream produced in 1 factory showed that contaminated products were distributed widely to the public without any reported cases, except for 4 cases of severe illness in persons who were highly susceptible. The ingestion of high doses of L. monocytogenes by these patients infected through milkshakes was unlikely if possible additional contamination associated with the preparation of the milkshake is ruled out.

This outbreak illustrated that the vast majority of the population did not become ill after ingesting a low level of L. monocytogenes but raises the question of listeriosis cases in highly susceptible persons after distribution of low-level contaminated products that did not support the growth of this pathogen.

Infectious dose of listeria monocytogenes on outbreak linked to ice cream, United States, 2015

Emerging Infectious Diseases, December 2016, Volume 22, Number 12, https://dx.doi.org/10.3201/eid2212.160165

http://wwwnc.cdc.gov/eid/article/22/12/16-0165_article

Recall creep: cookie dough edition

Listeria-positive linked recalls, similar to Facebook stalkers, creep. That’s what they do.

Same with clowns in the woods.choco_chunk

The typical event seems to go like this. Someone downstream in the buyer world or a government group finds a product with a pathogen. They call the supplier. The supplier looks at their system, maybe not understanding how regulators look at zones, sanitation clean breaks and environmental sampling, decides they will have a limited recall.

FDA or state investigators show up, assess the system, say, ‘hey, you really might have a larger problem here than you think’ and the recall creeps.

I dunno if that’s what is happening with Aspen Hills, a cookie dough processor who supplied their products to a bunch of ice cream companies (full disclosure, cookie dough ice cream is probably my favorite flavor).

It started with Blue Bell a couple of weeks ago, an expansion Monday and now Blue Bunny, Chocolate Shoppe and Publix are in on this.

Aspen Hills has nothing on their website about the recalls. Oops.

Test and ye shall find: Listeria in Blue Bell ice cream, again

A supplier of cookie dough that Blue Bell Creameries blamed for a possible listeria contamination of some of its ice cream products said Thursday that its product tested negative for the pathogen before it was sent to the Texas-based company.

listeria-blue-bellBlue Bell announced Wednesday it was recalling select flavors of ice cream distributed across the South and made at its Sylacauga, Alabama, plant after finding chocolate chip cookie dough from a third-party supplier — Iowa-based Aspen Hills Inc. — that was potentially contaminated with listeria.

Blue Bell halted sales, issued a voluntarily recall of all its products in April 2015 and shut down its three plants due to bacteria contamination that was linked to 10 listeria cases in four states, including three deaths in Kansas. The company, headquartered in Brenham, about 70 miles outside Houston, resumed selling its products about four months later. Before resuming production, the company said it had implemented new cleaning and sanitizing procedures at its facilities, as well as new testing programs and new employee training.

The iconic ice cream brand is beloved in Texas, where people impatiently awaited its return to store shelves after the recall.

No illnesses have been reported from the latest recall of ice cream distributed in Alabama, Florida, Georgia, Kentucky, Louisiana, Mississippi, North and South Carolina, Tennessee and Virginia, Blue Bell said.

Blue Bell said on Thursday in an email to The Associated Press that it found listeria contamination in packages of cookie dough ingredient received from Aspen Hills.

But a statement from Aspen Hills said its cookie dough product tested negative for listeria before it was shipped to Blue Bell and that the “positive listeria results were obtained by Blue Bell only after our product had been in their control for almost two months.”

Aspen Hills said that Blue Bell is the only customer who received the cookie dough product “included in our voluntary recall.” Blue Bell has been a customer of Aspen Hills since January.

Texas health officials fine Blue Bell a little following Listeria outbreak

Karen Robinson-Jacobs of Dallas News reports Blue Bell Creameries has been fined $850,000 by Texas health officials as a penalty for a Listeria outbreak, announced last year, that sickened 10 people and lead to a total shut down of company operations.

blue.bell.jul.15Three people died, but the company may only end up paying a fraction of that amount.

Under an enforcement agreement announced Friday between Brenham-based Blue Bell and the Texas Department of State Health Services, $175,000 must be paid within 30 days. The remaining $675,000 will be paid only if the company violates the terms of the agreement in an 18-month period, according to the state agreement.

Assuming all goes well with monitoring and testing, “upon successful completion of the eighteen-month term, the remaining balance of funds held in abeyance will be forgiven by” the state, the agreement said. 

Officials with Blue Bell could not be reached for comment.

Attorney Bill Marler, who specializes in representing victims of food-borne illness, said he thinks the fact that Blue Bell was hit with a fine is noteworthy.

“If it is $1 or $1 million, I think any fine for producing bad food sends a powerful message,” said Marler. “Any fine is very unusual. That is why any amount is significant. “

He said he has not heard whether any fines were levied by Oklahoma or Alabama, home to additional Blue Bell plants, but added “I would imagine they will.”

Under the agreement, makers of the iconic Texas brand will continue to test and monitor the ice cream following last year’s outbreak of Listeria monocytogenes linked to Blue Bell products made in Brenham.  

Research firm PrivCo estimated that, due to the recall, Blue Bell’s 2015 sales plummeted by nearly 60 percent to $288 million.

Blue Bell says Listeria likely spread in Oklahoma plant drainage

Blue Bell Creameries told federal inspectors that it believes Listeria spread at its Oklahoma plant through a drainage system, but the company said it couldn’t identify a single source of Listeria that contaminated equipment at its flagship facility in the Central Texas town of Brenham.

blue.bellThe Texas-based ice cream company revealed the findings in documents sent to the Food and Drug Administration, KXAS-TV in Dallas-Fort Worth reported Friday.

In its filing to the FDA, Blue Bell said cleaned equipment that came into contact with products made at its Broken Arrow, Oklahoma, plant was being stored in a small room with a floor drain. The company said an investigation revealed that particles at the plant may have carried listeria and washed into the building’s drainage system, gone through the room’s drain and settled on the clean equipment.

“We believe that this mechanism — particles emitted from a drain — was the most likely source of listeria,” Blue Bell wrote in the February filing.

The company said it no longer uses the room for equipment storage, and that the drain was removed and the floor replaced.

listeria4Blue Bell also told the FDA that it believes listeria likely entered its Brenham plant from “various potential sources” and settled on some pieces of equipment, but that investigators “could not identify a single common source of listeria in the facility.”

The company said it focused on cleaning affected pieces of equipment or removing it altogether, cleaning and sanitizing the plant and enhancing sanitation procedures and testing programs.

“We identified and implemented specific corrective actions to address the likely source, and adopted comprehensive facility-wide programs to enhance our overall ability to confront any possible sources of contamination,” Blue Bell spokesman Joe Robertson said Sunday.

Learning from previous outbreaks: Blue Bell edition

I don’t know what gets CEOs, COOs, CFOs attention when it comes to food safety. Whom reports to whom appears to matter when it comes to the values that support a good food safety culture.recall-master675

Some of the industry food safety folks I interact with say they have a direct line to the decision-makers and work together to nimbly react to food safety issues. Others say that the powers-that-be don’t understand the science, risk assessment and consequences. And won’t do much until there’s a crisis.

Paraphrasing one of the food safety nerds who has power:

I’ve convinced the CEO that finding listeria ourselves is a good thing because we can get to the source; that’s changed the culture of QA folks in the plants. We look, find and fix. And there’s money to support it.

That’s good.

Other food safety folks report that they have to put more money into hairnets, reducing their budget food handwashing tools because the COO thinks orphan hairs is the most unhygienic thing. Risk factor vs. yuck factor at its best.

I’m increasingly cynical that the above is unique and most don’t study the litany of outbreaks and learn from them. Many execs don’t see their companies as the next Blue Bell, and as Powell says, believe their own press releases.

Diana Wray of the Houston Press summarizes Blue Bell’s last year as part of coverage of a U.S. Department of Justice criminal investigation.

For a second there it seemed like Blue Bell was really going to put the whole listeria outbreak behind it. Ever since Blue Bell restarted production back in August, both the officials running the “little creamery in Brenham” and the public have treated the return of Blue Bell ice cream to grocery store shelves as a grand rebirth for the company. It was almost as if the whole listeria thing had never happened.

Almost.

Blue Bell may still be in the midst of a comeback tour, but the company is now facing a U.S. Department of Justice investigation over the listeria outbreak earlier this year that forced the company to recall all of its products and almost sent Blue Bell over the financial edge.

According to a CBS News report, the Justice Department is trying to figure out what Blue Bell management knew about the potentially deadly hazards in their plants and when they knew it.

Still, the company was circling the drain until Fort Worth oil man Sid Bass stepped in with an injection of $125 million this summer in exchange for a one-third stake in the company. And for a little while, despite the OSHA reports of worker injuries and the allegations of unsanitary conditions that reportedly left Blue Bell’s factories incredibly vulnerable to contamination, it looked like Blue Bell was going bounce right back. In fact it seemed likely that the company would simply hire back some of the workers that had been laid off, restart the factories and go back to putting ice cream on the shelves without any real consequences.

Sure there was a federal lawsuit filed by David Shockley, a man who was working at an elderly care center in Houston and regularly eating the ice cream when he became ill with what was determined to be listeria meningitis in October 2013. And of course Blue Bell had been forced to furlough 1,400 employees and lay off about 1,450 from it’s 3,900-person workforce. But despite all of that, the public has been remarkably forgiving, all three factories are now up and running and Blue Bell products are slated to be back on shelves in 15 states by the end of January.

So far neither the feds nor Blue Bell have confirmed or denied the investigation into the company. However, considering who’s spearheading the investigation, Blue Bell management could be facing some pretty serious allegations.

But we’re just down homey folk: Who knew what when as Dept. of Justice investigates Blue Bell for Listeria outbreak

CBS News reports that the U.S. Department of Justice has started an investigation into Blue Bell after their ice cream was linked to a deadly Listeria outbreak earlier this year that killed three people.

listeria4An FDA investigation found Listeria in all three of Blue Bell’s production plants located in Alabama, Oklahoma and Texas. Records indicated that the company knew one plant was contaminated at least as early as 2013.

The FDA investigation uncovered other troubling problems, including condensation dripping directly into ice cream and unsanitary equipment. Last April, Blue Bell shut down all three production facilities, and all ice cream was recalled.

Sources tell CBS News that the Department of Justice is trying to determine what Blue Bell management knew about potentially deadly hazards in their plants, and when they knew it.

The most extensive violations were found in Oklahoma, where the FDA released 16 separate positive tests for listeria on equipment and in ice cream from March 2013 through January 2015.

Last October, Gerald Bland who worked at the Blue Bell factory in Brenham, Texas, described to CBS News, unsanitary conditions on the factory floor.

“On the wall by the 3-gallon machine, if it had rained real hard and water sat on the roof, it would just trickle down,” Bland said.

Rain water from the roof would leak into the factory.

Another worker, Terry Schultz, told us that his complaints to management about unclean conditions went nowhere.

“The response I got at one point [from management] was, ‘is that all you’re going to do is come here and bitch every afternoon?'”

The message Schultz took management’s response was, “Production is probably more important than cleanliness.”

All three of Blue Bell’s plants are now back up and running, and by the end next month, its ice cream will be back on the shelves in 15 states.

 

Blue Bell: The rise and fall (and rise again?) of an ice cream empire

Mark Collette of the Houston Chronicle writes that Paul Kruse’s father had warned him about the perils of family-run businesses, but he couldn’t escape his place as the obvious heir of a dawning ice cream empire.

blue.bell.jul.15After ascending to the corner office in 2004, Kruse delivered Blue Bell Creameries to its greatest height, becoming the No. 1 U.S. brand.

This year, it took barely two months to undo everything.

Ironically, Blue Bell’s food-poisoning crisis could give it a one-up on competitors, because it already has been forced to make expensive changes to equipment and safety protocols that other ice cream makers soon will have to emulate under new federal regulations. It took most of the year to upgrade while other brands gobbled up market share.

Under Paul Kruse, Blue Bell’s annual sales grew by 70 percent from 2006 to 2014, versus just 8 percent for the entire U.S. industry, according to figures from the market intelligence firm Euromonitor. It rose from fifth to third in U.S. market share. Relative to its own past, it abandoned any notion that slow was better, roughly doubling the geographical reach it had attained in the previous century. In 2014, for the first time, Blue Bell stole the No. 1 spot in brand sales from Dreyer’s, the longtime U.S. favorite.

Before the listeria crisis struck in March, it sold more than $333 million, according to Euromonitor figures updated in August. As a privately held company, Blue Bell doesn’t publicly disclose sales. But by that reckoning, it had, in one quarter, sold more than half of what it did in all of 2010 – and peak summer sales hadn’t even set in yet.

All that production came with a price. Brenham plant workers said sanitation was hurried. Hot water ran low. And federal records showed that problems reached to plants in Oklahoma and Alabama, negating the possibility that the listeria outbreak was a failure of one supplier, one machine or one employee. Somewhere amid all that growth, reality couldn’t keep up with the clean country image. Worse, it hadn’t been keeping up for years. Epidemiologists this year determined that illnesses from as early as 2010 were caused by Blue Bell – retroactive medical sleuthing made possible by the DNA database.

Had Blue Bell folded, it would have joined the majority of third-generation businesses, only a small percentage of which survive into the fourth, according to various consulting firms.

Unlike public companies, which send CEOs packing after six years on average, family bosses are entrenched, raising a host of challenges, said Andrew Hier, senior partner of the Cambridge Family Enterprise Group. They may have more difficulty coping with shifts in technology over time. Decision-making becomes more complicated in the so-called “cousin generation,” with more personalities at the table. Though privately held, Blue Bell now has hundreds of shareholders. Kruse’s cousin, Greg Bridges, is the vice president of operations.

After 10 illnesses and three deaths linked to Blue Bell, it now has been forced to modernize. It faces a task like Odwalla, the homegrown juice brand roiled by E.coli poisonings in 1996, and, more recently, Chipotle, the fast-food burrito chain plunged into crisis from at least four separate disease outbreaks in a span of months.

Odwalla had to abandon its raw-is-better philosophy and start pasteurizing its juices. Similarly, Chipotle is instituting pathogen testing standards unlike any others in fast food.

And lots more.

I’m as passionate about hockey as others are about food brands

There are three important things in my life: my family and friends, hockey, and food safety.

In that order.

A few weeks ago Doug and I had a conversation about the hockey rink being our church; we share fellowship, care about our community and want to share our joy with others; the hours we spend on the ice playing, coaching and skating are unlike anything else we do.376043360_4651212caf_o

Or as one of my friends put it, ‘The nice thing about hockey is for an hour I tend to forget about all the other crap that’s going on and hang out with folks that share my passion for the game.’

And enjoy the company of people we care about.

A teammate had a shocking tragedy in his family this week and while our team debated cancelling our game, we decided to play tonight. It gives us a place to go to talk about how our community can support our close friend.

I guess that’s what church is all about, too.

Some people have that same feeling about food brands, I guess.

Jack Stalling of the Longview News-Journal writes, Blue Bell Ice Cream is sort of a church and he’s rejoicing that it is back on the market.

Shortly after I married my lovely wife back in February of 1998, Rachel and I treated ourselves to a night out that included dinner and a movie.

Dinner was outstanding, and both of us claimed to be way too stuffed to even consider having dessert.

When I noticed that the restaurant offered Blue Bell homemade vanilla ice cream on apple pie as one of its dessert choices, I undid another notch on my belt and asked the nice waitress to bring it as fast as her tired legs would carry her.

I could tell Rachel was confused, so I explained one of my fundamental beliefs to my new bride.

“Never pass up the opportunity to eat Blue Bell,” I told her. “Even if you don’t want it right then, some day you might really want some Blue Bell, and if it’s not available, you will remember the time you passed up the opportunity to eat Blue Bell. Do you want that sort of thing creeping into your dreams at night and haunting you?”

And Chipotle has created a similar passion within its fans, writes Dave Bry in the Guardian,

As I was deciding what to order, Depeche Mode’s cover of Route 66 came on the radio. This turned out to the absolute perfect soundtrack for my experience. Its cold, clean synth beat was a perfect match for the sterile and antiseptic decor, while David Gahan’s slightly evil baritone voice spoke of infection and the dangers of travel in our modern age – of the danger of seeking “kicks”, and a deal with the devil. Was I gambling with my life, with my eternal soul, by eating Chipotle?

I went ahead anyway, and ordered a barbacoa steak bowl, with white cilantro/lime rice, black beans, sour cream and lettuce. (Guacamole was extra, and I don’t appreciate when restaurants charge extra for things that other restaurants provide gratis, so I skipped it.) I asked for the hottest salsa available, imagining the acid in the habanero peppers might kill any virus or bacteria hiding in my food. Also, I like spicy food.

At the cash register, I found an even better safety precaution. Chipotle serves margaritas! This was a surprise. It felt like going to a McDonald’s and getting to order a martini with your Happy Meal. Whatever E coli or salmonella or norovirus the salsa didn’t burn into oblivion, I figured, would be pickled to anodyne by tequila.

The lady at the cash register was friendly. I asked her if she’d noticed a drop-off in business in the wake of the outbreaks.

“Oh, yeah,” she said. “There are way less people coming in lately.”

“But then we’ve got our regulars,” she added, nodding to the people at the tables. “We got people that come every day. They say, ‘I don’t care!’”

I prefer the hockey rink.

Prof baffled by public support as Blue Bell ice cream returns to Texas

As Blue Bell ice cream returns to most of Texas, Mindy Brashears, a professor of food safety and public health at Texas Tech told the Lubbock Avalanche Journal  she’s baffled by the public’s response to Blue Bell’s return, adding she believes a company selling meat products — such as beef — would probably be out of business under the same circumstances.

wtfBlue Bell was greeted by some faithful fans at 4 a.m. Monday who were awaiting the product’s return after the Brenham-based company recalled all its products when it was linked to 10 listeria cases that resulted in three deaths.

One fan who wasn’t awaiting the product’s return with open arms is Mindy Brashears, the director of International Center for Food Industry Excellence and a professor and researcher at Tech. She is currently teaching a class in the Bahamas, but spoke with A-J Media through email.

She said there’s no logical explanation she can think of to explain why consumers were so anxious and welcoming for the product’s return.

“The consumer response to Blue Bell baffles me,” she said. “First of all, had this been a beef product, the public outcry/ban would have likely put the company out of business. There is much history of this phenomenon. This occurs even when no illnesses are reported and there is simply a recall of the product.”

Blue Bell did face economic hardship after the recall and temporary shut-down.

But what Brashears found most troubling was what she called Blue Bell’s lack of response to addressing the problem sooner. According to the Centers for Disease Control and Prevention’s investigation, the outbreak began in 2010. Brashears said it wasn’t until the outbreak caught public attention that the company decided to act.

blue.bell.jul.15“Of great concern is the fact that they knew the product was going to hospitals and schools, thus reaching the most at-risk populations and therefore, they should have been especially diligent in addressing the issues that started back in January of 2010 instead of waiting for the problem to grow,” she said.

Brashears said Listeria monocytogenes, or listeria, is a bacteria that causes muscle aches, headaches and fever. It can cause septicemia and meningitis and even death, she said.

Listeria is of special concern when it’s in a ready-to-eat product like cheeses and ice cream, and the center for disease control estimates 1,600 illnesses and 260 deaths each year in the U.S. because of it.