Is That Salami Safe? Charcuterie Recalls and Consumer Safety Tips

Photo of a charcuterie board.

By Donna Campisano, specialist, Communications, APHL

Charcuterie is having a moment. Boards and trays loaded with cheeses, cured meats, nuts, olives, spreads, chocolates and pretty much anything your heart desires are everywhere—on restaurant menus, in grocery store deli cases and on kitchen islands from Tempe to Tampa and places in between.

But that board could be brimming with more than chevre and capicola.

In January, Fratelli Beretta, USA recalled ready-to-eat charcuterie meat products due to concerns they may be contaminated with Salmonella. The recall was initiated after the Food Safety and Inspection Service (FSIS), in partnership with the Centers for Disease Control and Prevention (CDC) and state public health officials, investigated a multistate outbreak of Salmonella. According to CDC, 87 people in 30 states have been affected, although the number is likely higher as many people recover without seeking medical treatment.

Further investigation determined that under-processed Coppa meats, which are made from cured pork, are the likely source of the infection. The products in question include Busseto brand Charcuterie Sampler and Fratelli Beretta brand Antipasto Gran Beretta (you can find the complete list of recalled products here). Consumers should not eat, and retailers should not sell, these items.

Infection with Salmonella, which can cause diarrhea, abdominal cramps and fever, is just one of several dangers lurking on charcuterie boards. Another big one is Listeria monocytogenes, a bacterium that survives refrigeration and other food preservation techniques and can be found in deli meats and some cheeses. A Listeria infection can cause gastrointestinal issues, and, in severe cases, headaches, stiff neck and even convulsions. It is particularly dangerous to pregnant women, young children and the elderly.

So, can you have your charcuterie and eat it (safely) too? No food is 100% risk-free, but there are steps you can take to increase the chances your Coppa (and other charcuterie items) are copacetic.

  • Start with clean hands and utensils when preparing your charcuterie board.
  • Choose your cheeses carefully. Make sure they are made using pasteurized milk (pasteurization kills harmful bacteria). Unpasteurized cheeses are sometimes sold at places like farmer’s markets so be sure to check the labels.
  • Check expiration dates. Many cured meats have a long shelf life. Make sure what you’re serving hasn’t passed its prime.
  • Keep your charcuterie items refrigerated right up until serving (you can even assemble your board and pop it into the fridge until needed).
  • Replenish your board as items are eaten instead of piling it high with meats/cheeses that are allowed to sit unrefrigerated.
  • Discard all perishable foods that sit out longer than two hours.

APHL supports the public health laboratories that perform testing to identify the pathogens that cause foodborne diseases by training staff, improving the capabilities of member laboratories and collaborating with federal partners, such as CDC and Food and Drug Administration (FDA). Working through the Council to Improve Foodborne Outbreak Response (CIFOR), APHL maintains a strong role in enhancing communication and collaboration across the disciplines involved in investigating foodborne illness outbreaks.

The post Is That Salami Safe? Charcuterie Recalls and Consumer Safety Tips appeared first on APHL Blog.

Sprouts: Just say no?

Sprouts: Just say no? | www.APHLblog.org

By Caitlin Saucier Feltner, BSN, RN

Most people have seen or eaten sprouts, the crunchy mild-tasting greens that are often incorporated into stir-fried dishes and nestled into sandwiches to add texture and color. Did you know that many food safety experts list sprouts at the top of their “Do Not Eat” lists? The term “sprouts” actually refers to a variety of small plants that can be sprouted from several different seeds including alfalfa, broccoli, mung beans and radish. While they can be an excellent source of antioxidants, vitamins and minerals, sprouts are also frequently contaminated with foodborne pathogens, some of which can be quite dangerous. What makes sprouts so risky? The answer lies in how they are grown, processed and stored before they get to your plate.

While there is nutritional value in sprouts, there can also be significant risk. Raw sprouts can be a carrier for harmful bacteria including Salmonella, Listeria and E. coli. Some of these pathogens can cause more than just an upset tummy. For example, Shiga toxin-producing E. coli (STEC) are particularly dangerous. Of those infected with STEC, 5-10% develop hemolytic uremic syndrome (HUS) which can result in permanent kidney damage and even death. Listeria has a mortality rate of about 21%,and carries a particularly high risk for pregnant women and those with compromised immune systems. Consumption of raw sprouts can have health consequences that are more than theoretical and can be extremely serious.

Since 1996, there have been more than 30 outbreaks linked to sprouts that have sickened at least 1,800 people. (There have probably been far more cases than this because not every illness is confirmed and reported.) Perhaps the most well-known of the sprout related outbreaks, Jimmy John’s Gourmet Sandwiches served sprouts eventually linked to outbreaks in 2008, 2009, 2010 (two outbreaks), 2012 and 2014. While the company temporarily removed sprouts from their menu, sprouts have returned in many states and some customers placing online orders have been met with a pop-up safety warning.

Sprouts: Just say no? | www.APHLblog.orgSo what is it about sprouts that makes them so risky? According to the Colorado Integrated Food Safety Center for Excellence, the source of bacterial contamination for sprouts is nearly always the seeds.

The plants that initially produce these seeds are grown in typical agricultural settings. Animal manure, contaminated water and poor worker hygiene are all potential ways for the seeds to come in contact with harmful bacteria. The seeds can also become contaminated while being harvested, during storage or transportation (for example, by rodents and pests that live in a storage facility). Additionally, seeds intended to be sprouted sometimes undergo a process known as scarification to break down the seed’s outer coat and let in water. This process speeds up sprouting, but also leaves tiny holes that trap bacteria.

Some of these contaminated seeds are then sent to a sprouting facility where they are exposed to warm and moist conditions to encourage their growth. Unfortunately, these conditions are also perfect for bacterial growth. In this ideal environment, bacteria undergo what is known as “exponential growth.” The concept is fairly easy to understand – one bacterium doubles into two which then doubles into four and so forth. Just a few bacteria attached to a seed can quickly become a critical mass. This bacteria then grows from the seed into the sprout itself.

There is also opportunity for the sprout itself to become contaminated if it is exposed to poor sanitation conditions such as improperly cleaned equipment. While some sprouting facilities use a chemical soak on the seeds to reduce the number of bacteria, less than half of sprouting operations use a disinfection treatment before sprouting since the final sprout output may be reduced.

There is a common misconception that sprouts grown outside of a commercial environment, such as in an individual’s home garden, are safe from the risk of contamination. That’s simply untrue. Because the source of bacterial contamination is almost always the seed, a home gardener’s attention to good hand hygiene and a clean growing environment does not exempt them from the risk associated with sprouts. The contaminated seeds mentioned above are likely the same ones that a home gardener would find in a seed packet. That means home sprouters are equally likely to be starting the process with harmful bacteria present.

The inevitable next question asked by sprout-lovers: can’t I just wash them? Because contamination almost always grows from the seed into the plant, washing sprouts won’t remove those risky pathogens. Per FDA recommendations, the safest practice is to cook sprouts thoroughly. I realize this isn’t always the best way to serve sprouts, but it is truly the most effective way to ensure foodborne pathogens are eliminated. This is even more critically important when they will be served to children, older adults, pregnant women and those with poor immune system function.

Like with anything, most food safety experts would say that they always weigh the risks of a particular food with the benefits. Is your love of sprouts great enough to warrant the risk? That’s for you to decide. While eating raw sprouts will certainly not lead to illness every time, the high risk of contracting a dangerous pathogen is enough of a deterrent for me. Dine safely!

Caitlin Saucier Feltner is a former CDC/APHL Emerging Infectious Diseases Laboratory Training Fellow who worked with the Hawaii Department of Health State Laboratories Division. Read more of Caitlin’s posts

Stopping Listeria required an arsenal of tools and an army of experts

Stopping Listeria requires an arsenal of tools and an army of experts | www.APHLblog.org

By several contributors from Maryland Department of Health and Mental Hygiene (DHMH), Division of Outbreak Investigation; State of Maryland Rapid Response Team (SMarRRT); Maryland Public Health Laboratory; Virginia Rapid Response Team; Virginia Department of Agriculture and Consumer Services (VDACS); and the Virginia Department of General Services Division of Consolidated Laboratory Services

While Listeria monocytogenes is not one of the most frequently occurring foodborne pathogens in the US, it is the third most deadly. Listeriosis, the infection caused by Listeria monocytogenes, primarily affects pregnant women and their newborns, adults over 65 and those with compromised immune systems – 90% of those who develop a severe Listeria infection fall into one of those groups. The severity of illnesses has focused US public health agency’s efforts to seek new and improved ways to identify outbreaks of Listeria and prevent additional illnesses.

In August 2014, the Maryland Department of Health and Mental Hygiene (DHMH) identified five cases of invasive listeriosis in Maryland residents from the same county. Of these five cases, four were related to a pregnancy (two mother-newborn pairs). The other illness was in a newborn. Data uploaded to the PulseNet database showed that the bacteria causing the illnesses were indistinguishable by pulsed-field gel electrophoresis (PFGE), indicating they could be caused by the same source. Because CDC implemented whole genome sequencing (WGS) for real-time Listeria surveillance in 2013, these isolates were also sequenced.
In keeping with the Listeria Initiative, a CDC program to aid in the investigation of listeriosis clusters and outbreaks by decreasing the time from outbreak detection to public health intervention, state epidemiologists promptly began conducting patient interviews. They used the standard case questionnaire, a valuable tool included as part of the Listeria Initiative, to gather detailed information about each case. Interviews showed some commonalities in the cases; notably, everyone was Hispanic. Hispanic women are 24 times more likely to get listeriosis than others. The questionnaire also included a checklist of foods that are frequent sources of Listeria, including a section on soft cheese, and more specifically, a section on Latin-style cheeses. Soft cheeses are a common source of Listeria, and pregnant women are advised not to consume them. This includes cheeses such as queso fresco, queso blanco and queso cotija, which are commonly used in Latin American cooking.

Stopping Listeria requires an arsenal of tools and an army of experts | www.APHLblog.orgOf the five initial cases, one patient reported consuming Latin-style soft cheese from an unlicensed vendor cart outside of a local Latin grocery store. However, cheese subsequently collected from the vendor was negative for Listeria.

Between October and December 2014, three additional cases were linked to the earlier cluster by PFGE in the PulseNet database. This prompted renewed concern that a product available by retail was contaminated and being broadly distributed. These patients were also all Hispanic. Two lived in the same Maryland county as the patients in the earlier cluster, one lived in California.

Intensive follow-up interviews in Spanish established that all five Maryland adults shopped at a common Latin grocery store chain in Maryland and Virginia, and consumed soft cheeses purchased there prior to illness. The patient from California died before an exposure history could be obtained.

The link between soft cheeses and a common grocery store chain prompted the Maryland Rapid Response Team to notify the Virginia Rapid Response Team of a potential food emergency. Established through a Food and Drug Administration (FDA) partnership, Rapid Response Teams (RRTs) are multi-agency, multi-disciplinary teams established to respond to food emergencies such as product tracebacks or recalls. Working together through the RRTs, the Virginia Department of Agriculture and Consumer Services and Maryland DHMH, in coordination with local health departments, collected retail samples of Latin-style soft cheeses from multiple retail chain locations.

Samples promptly tested by Virginia’s Division of Consolidated Laboratory Services (DCLS) were determined to be positive for Listeria. PFGE analysis confirmed the recovered isolates matched the outbreak strain, and WGS analysis further confirmed the relatedness of the pathogens recovered from both cheese and specimens from listeriosis cases. It was also revealed that the cheeses were from a single Delaware-based manufacturer, but had been repackaged by the retailer. This led to additional testing by Virginia DCLS and Maryland DHMH lab scientists who found the outbreak strain in cheese packaged by the original manufacturer. As a result of the identification of the outbreak strain in retail samples, the states of Maryland and Virginia issued consumer warnings for consumption of these products. FDA, in coordination with the Delaware Department of Public Health, investigated the manufacturer. Samples taken by FDA also found the outbreak strain (matched by PFGE and WGS at FDA) on multiple surfaces within the manufacturer’s facility which prompted a voluntary recall by the manufacturer.

While these findings supported previous PFGE results which linked this outbreak to the contaminated soft cheese, WGS was extremely valuable in confirming the inclusion of the California case.

Thanks to strong partnerships between state public health laboratory scientists, food safety officials and epidemiologists, this outbreak response effort was quick and successful. Each discipline contributed critical information during the investigation which allowed for timely resolution of the outbreak and the recall of contaminated products.

 This year we celebrate the 20th anniversary of PulseNet USA. Stories from highlighting PulseNet successes will be featured each month. Learn more about PulseNet from APHL and CDC.

 

APHL’s top blog posts of 2015

APHL’s top blog posts of 2015 | www.APHLblog.org

As 2015 comes to a close, we’re taking a walk down memory lane. Public health headlines included Listeria in ice cream, the Animas River mine waste spill, continued Ebola response and recovery, and the loss of too many public health colleagues. Dedicated public health professionals were as busy as ever.

This was also the year we updated our blog with a more dynamic homepage and more subscription options! We hope you’ve enjoyed reading our posts. Many thanks to the APHL staff, members and partners who wrote and contributed to these stories; and thank you to our readers who keep coming back.

Here are the most popular APHL blog posts of 2015:

10. University of Oregon outbreak highlights collaboration between public health and clinical care – As a meningococcal disease outbreak struck this college campus, the public health and clinical care systems had to work quickly and closely to stop this rare but serious disease.

9. From The Lorax to the Laboratory – Vanessa Burrowes shared her story of struggling to find the right career path, discovering public health and feeling like it was the one field that would allow her to “have it all.”

8. Q&A with NewSTEPs: Bringing routine CCHD newborn screening to every state – The Newborn Screening Technical assistance and Evaluation Program (NewSTEPs) is a program of APHL in collaboration with the Colorado School of Public Health that, among other things, supports states that are adding critical congenital heart disease (CCHD) screening to their newborn screening program. But CCHD screening isn’t a laboratory test… So why is APHL involved?

7. The Tenacity of Tuberculosis: MDR-TB – Tuberculosis is the second largest cause of mortality of any single pathogen behind HIV. As the world tries to move toward elimination of this disease, public health faces the next major obstacle to tuberculosis control: multi-drug resistant TB (MDR-TB).

6. It is never just a cold – Did you know there are more than 200 viruses behind the common cold? What are they and why are they so difficult to control?

5. Newborn Screening: This Tiny Test is a Big Job That’s Always Improving – APHL’s executive director, Scott Becker, responded to the growing concerns about newborn screening timeliness and how newborn screening programs are working to improve.

4. Lab sciences grad program brought me from the yogurt factory to public health – On a whim, Joe Shea decided to check out a seminar on public health grad programs. It was there that he first learned about the Wadsworth Center’s (New York’s state public health laboratory) Master of Science in Laboratory Sciences (MLS) program. Attending that seminar would change the course of his entire career.

3. Newborn screening saved these babies. How are they doing now? – Remember all of those adorable babies we featured on our blog during the 50th Anniversary of Newborn Screening in 2013? We checked back in with some of those families to find out how they’re doing.

2. Dear Dr. Hunt: This female scientist has something to say. And it isn’t that she loves you. – After hearing the sexist comments made by a Nobel Prize winning biochemist, APHL’s director of membership and marketing, Linette Granen, had some choice words to offer in response. As she said, “[W]e can and we have – and we hope to inspire the next generation to do the same.”

And the most popular blog post of 2015…

1. 5 Things You Didn’t Know (but Need to Know) about Listeria – After a few high profile Listeria outbreaks earlier this year, we decided it was time to share some important information about this serious bacteria. Did you know Listeria can grow on foods even while in the cold temperatures of a refrigerator? Yeah… you should probably read this post.

 

5 Things You Didn’t Know (but Need to Know) about Listeria

By Michelle Forman, senior specialist, media, APHL

Listeria has reared its ugly head (and tail – flagella, technically speaking) seemingly quite a bit recently. According to FDA, there have been 14 recalls due to possible Listeria contamination so far this year. (Five of those were linked to the same spinach supplier.) And USDA’s list shows another three. While most of these recalls have not been linked to illnesses*, Listeria is extremely serious and considered a high-priority within the US food safety system. What is this nasty bacteria and why is it so serious? Here are five things that you didn’t know (but need to know) about Listeria.

5 Things You Didn’t Know (but Need to Know) about Listeria | www.APHLblog.org1. 90% of people who get listeriosis (the infection caused by Listeria monocytogenes) are part of a high-risk group such as pregnant women, adults over 65 years and people with weakened immune systems. In fact, pregnant women are about 10-20 times (depending on the source) more likely and the elderly are four times more likely to get listeriosis than the general population. If you’re part of one of these groups, take Listeria risk very seriously.

2. Listeria has a very high mortality rate. CDC estimates that there are about 1,600 cases each year and 260 die (approximately 16%). By comparison, CDC estimates 19,000 Salmonella cases each year and 380 die (approximately 2%).

5 Things You Didn’t Know (but Need to Know) about Listeria | www.APHLblog.org 3. Listeria is unlike many other foodborne pathogens because it can grow even in the cold temperature of the refrigerator making it extra important to avoid cross contamination from uncooked meat, fish or other high risk foods. Like other foodborne pathogens, proper cooking is the most effective way to kill Listeria that is lurking on your food.

4. The incubation period for Listeria is 3-70 days. That means it could be up to 70 days after Listeria entered your body before you get sick. Many people who get foodborne illness often point to the last thing they ate as the culprit, but that’s often not the case especially with Listeria. For the purposes of an outbreak investigation, epidemiologists will look back even further – as much as 120 days prior to when a person became ill – to be sure they are really looking at every possible suspect. Can you remember what you ate 70 days ago? Or even 120 days ago?

5 Things You Didn’t Know (but Need to Know) about Listeria | www.APHLblog.org

5. The US food safety system takes Listeria extremely seriously. There is an enhanced surveillance system led by CDC called the Listeria Initiative which requires health care providers to report listeriosis cases; requires public health officials to promptly interview anyone with listeriosis to gather information that could help identify the source of infection; and requires clinical labs to send positive samples to public health laboratories for subtyping using PFGE (DNA fingerprinting). The DNA fingerprints are uploaded to PulseNet, the national network of public health and food regulatory agency laboratories that connect foodborne illness cases together to detect clusters of bacteria that make people sick. All of this helps accelerate outbreak detection and surveillance, and decreases the amount of time it takes to stop an outbreak from progressing.

* While there have been 17 recalls due to possible Listeria contamination, most have not been linked to illness. Five national PulseNet clusters of illness have been detected and reported to epidemiologists this year. Four of those clusters have led to epidemiologic investigations. As of now, three of those investigations are still open and active. One of those investigations has led to a confirmed source and is still considered active.

An Unsuspected Treat Contaminated with Listeria. How about them Caramel Apples?

Caramel apples

By  Mandip Kaur and Brendan Jackson

Oh, how sweet it is to enjoy a caramel apple when autumn sweeps in! Maybe you like yours topped with nuts? Sprinkles? How about chocolate?

But who knew that this past fall, certain caramel apples would be contaminated with the dangerous Listeria monocytogenes bacteria (here, Listeria for short), and cause illnesses across the nation? This was quite a curveball for public health investigators: listeriosis (the disease caused by Listeria) outbreaks are often traced to soft cheeses and sometimes to produce, but no one had ever reported an outbreak linked to whole apples.

Cracking the case

Text 1We scratched our heads over this one, but with the help of the Listeria Whole Genome Sequencing (WGS) Project and patient food history information, public health officials at the state and local levels, the Centers for Disease Control and Prevention (CDC), and the Food and Drug Administration (FDA) were able to identify the source of this outbreak and prevent more people from getting sick.

Public health investigators must work with accuracy and speed to stop an outbreak in its tracks and prevent illnesses–especially true in this Listeria outbreak. Thirty-five people who lived in 12 states became sick and sadly, Listeria contributed to at least three of the seven reported deaths. It was the largest US Listeria outbreak since the one linked to cantaloupe in 2011.

We used a three-pronged approach to solve the outbreak:

  • Laboratory: CDC, FDA, and state labs tested samples from patients, foods, and the environment for related strains of Listeria.
  • Epidemiology: Local, state, and CDC investigators interviewed patients about foods they ate before getting sick.
  • Traceback: FDA, state, and local officials investigated sources of the suspect food and its ingredients.

It all started in mid-November 2014, when lab scientists at CDC raised a flag after noticing that certain Listeria infections across the United States—out of the hundreds that had occurred that year—were genetically related, suggesting an outbreak.

The laboratory sideDNA

We used whole genome sequencing, or WGS, to help determine the scope of this outbreak. WGS provides high-resolution genetic information about the strains of Listeria causing illness. Since the 1990s, we’ve tested patient samples from across the country using pulsed-field gel electrophoresis, or PFGE, and then compared them in PulseNet (a national network of public health labs) to see which ones appear related.

In the past year, we’ve started using WGS, too, because it gives a much more detailed look at Listeria strains than PFGE. Thanks to WGS, we were able to detect related cases across the country a week faster than if we relied on PFGE alone. WGS also gave us a clearer picture of which illnesses ought to be included in the outbreak, and which were likely due to other sources.

The epidemiology front

How could we figure out what food was making people sick? We asked patients what they ate, of course. First, we used a standard questionnaire that asks about dozens of foods that could be linked to listeriosis, but when epidemiologists examined their responses, no food jumped out as the likely culprit.

Text 2Over the following weeks, epidemiologists re-interviewed patients and their families—sometimes multiple times—about all the foods they had eaten in the month before getting sick. Just try to remember everything you ate a month or two ago—no easy task! As you can imagine, some patients had several foods in common, and we chased a number of false leads.

Then we got a call from our colleagues in Texas about two patients who had eaten caramel apples. They thought they might be on to something, but could caramel apples really be a source of listeriosis? The quickest way to find out was to ask patients in other states. We were amazed as one patient after another answered “yes” to eating caramel apples.

By December 19, 2014, we learned that 15 of the 18 ill people interviewed had eaten commercially produced, prepackaged caramel apples. When we compared this information with data on how often people in general eat caramel apples, we could tell it was no coincidence—caramel apples were almost certainly to blame.

With evidence from the WGS findings and the food history information, we informed the public about the outbreak that day. We recommended that consumers not eat commercially produced, prepackaged caramel apples until we had more specific information about brands or stores–patients were reporting multiple brands, although most couldn’t remember a brand at all. 

The trace back tale

FDA and state officials traced back the caramel apple brands to multiple manufacturers. They even traced back all the ingredients in the caramel apples including the apples, caramel, toppings, and sticks—a difficult and time-intensive task.

As it turned out, all of the manufacturers in the investigation used apples from Bidart Bros., a California apple supplier. That was the only common denominator. After learning about the investigation, Bidart Bros. issued an initial recall of certain apples on December 22, 2014. Over the next week, three caramel apple manufacturers that received apples from Bidart Bros. issued recalls of their own.apples_crop

FDA and California health officials inspected the Bidart Bros. apple packing facility, which was closed for the season, and swabbed surfaces. On January 8, 2015, tests from the Bidart Bros. facility found strains of Listeria that were indistinguishable from the ones making patients sick. We had the third piece of the puzzle.

Soon after, the company issued a public recall of all apples produced in 2014, and CDC and FDA were able to narrow our guidance to consumers and inform them that they should avoid only caramel apples made from Bidart Bros. apples.

This outbreak investigation highlights how WGS, with its precision and speed, combined with detailed patient interviews about exposures can help identify the scope and source of an outbreak. CDC used these vital tools to keep the public informed and to advise people to not eat a contaminated caramel apple a day, to keep that Listeria away!

 

An Interview with Pascale Cossart

Charles Ebikeme interviews Pascale Cossart of the Institut Pasteur on the occasion of her receipt of the Women in Science Award at FEBS-EMBO 2014. On September 2, Pascale Cossart received the Women in Science Award at the Federation of European … Continue reading »

The post An Interview with Pascale Cossart appeared first on PLOS Blogs Network.

Food Safety Funding Cuts in Action

By Michelle Forman, senior media specialist, APHL

Food Safety Funding Cuts in Action | www.aphlblog.org

It seems that our blog post “Could funding cuts to food safety programs make you sick?” on the impact of funding cuts on food safety programs was unintentionally timely. The current nationwide stone fruit recall is a real-life demonstration of the hypothetical situation outlined in our story.

As explained in an article on FoodSafetyNews.com, Australian tests found Listeria on fruit exported from the US. Not tests performed in this country. On December 31, 2012, a valuable and relatively inexpensive federal program called the Microbiological Data Program (MDP) – a program that did 80% of the federal US testing on fruits and vegetables (FDA did the other 20%) at the low price of $5 million per year – was intentionally allowed to lapse by Congress. In the absence of this US program, American consumers were not protected from exposure to the Listeria that might have been on the fruit sold in our markets.

Here’s the quick timeline:

  • July 10 – Australian company discovered Listeria on fruits; the amount of Listeria fell within the tolerance level for Australia, but the FDA has a zero-tolerance policy
  • July 12 – California’s Wawona Packing Co. shut down packing operations and ordered testing by a private laboratory
  • July 17 – Wawona learned from the lab that three pieces of fruit tested positive for Listeria. They decided to order additional testing on other fruits from the same lot. While they waited, they thoroughly cleaned and sanitized their packaging facility.
  • July 21 – The lab reported that tests on additional fruits were negative. Wawona felt confident that entire lots of fruit were not contaminated and there was not a significant risk to the public, but decided to issue a recall anyway.
  • July 22 – Wawona issued a voluntary recall of all fruits packed between July 1 and July 12 (when the company stopped production)

Wawona Packing Co. responded to the information that was sent from Australia quickly and aggressively. They were not required to stop production or issue a recall in the US, but they did. Their response was handled quite well.

The problem here is that a critical program, MDP, could have discovered this contamination sooner. By the time Wawona was able to respond, the potentially contaminated fruit was already in the market and quite likely already consumed. It is safe to assume that MDP would have tested fruit sooner than the Australians simply because of the absence of prolonged international shipping time.

American consumers can be appreciative of the Australians for alerting Wawona to the Listeria contamination in their produce. And we are glad that Wawona responded as quickly as they were able. But there were still 11 days between when the first questionable lot of fruit was shipped and when production was halted. If we want to intercept contaminated produce before it lands on our plates, we need to appropriately fund the local, state and federal programs designed to do so. People may or may not get sick from this fruit, but we don’t want to take that gamble with every recall.

There still have not been any reported cases of Listeria associated with the recalled stone fruits, although it is important to note that Listeria infections can take up to 70 days (yes, 70!) to present symptoms.