Irradiation Could Reduce Food-Borne Illness

Hamburgers, apple cider, petting zoos and even spinach have been blamed for E. coli outbreaks in recent years. It doesn't have to be that way, says Dennis G. Maki, M.D., writing in the New England Journal of Medicine.

Irradiation of high-risk foods after processing could greatly reduce the incidence of all bacterial foodborne disease and save hundreds of lives each year, Maki argues.

"Irradiation kills or markedly reduces counts of food pathogens without impairing the nutritional value of the food or making it toxic, carcinogenic, or radioactive," according to Maki, a professor of medicine at the University of Wisconsin.

Keep reading here.

Safe food

The TCS daily (technology, commerce, society) has an interesting article on making our food safer.

Americans are wondering who will protect us from future outbreaks of contamination and food-borne illness.

First, it's clear we can't rely on growers of fresh produce to protect us 100 percent of the time. Modern farming operations - especially the larger ones -- already employ strict standards and safeguards designed to keep food free of pathogens. And most often they work: Americans' food is not only the least expensive, but also the safest, in the history of humankind.

However, there is a limit to how safe we can make agriculture, given that it is an outdoor activity and subject to all manner of unpredictable challenges. If the goal is to make a field 100 percent safe from contamination, the only solution that guarantees this is to pave it over and build a parking lot on it. But we'd only be trading very rare agricultural mishaps for fender-benders.


Link to article

Salmonella Linked to Restaurant Tomatoes

WASHINGTON — Contaminated fresh tomatoes served in restaurants were the cause of a recent salmonella outbreak that sickened dozens of people in 21 states, health officials said Friday.

The outbreak, now over, sickened at least 183 people, according to the Centers for Disease Control and Prevention. There were no reports of deaths, although 22 people were hospitalized. Interviews with victims, including detailed surveys of what they had eaten and where before falling sick, led investigators to suspect restaurant tomatoes as the cause.

"We have identified tomatoes eaten in restaurants as the cause of this outbreak. We don't have any information that a name or a certain type of restaurant is involved. As far as we can tell, it's across the board,"said Dr. Christopher Braden, a foodborne outbreak and surveillance expert with the CDC.

Read more here

30 people reported sickened at banquet

Detroit health authorities are investigating reports that at least 30 people attending a banquet last week at Detroit’s Roostertail banquet facility got sick afterwards with nausea, vomiting and diarrhea, the state health department confirmed Wednesday.

The reports came from a banquet for 370 people last Thursday, said Lasher.

The state Department of Agriculture, which collaborates with the state health department on food safety issues, alerted the state health department about at least 30 reported cases of food poisoning, Lasher said.

keep reading here

Don't eat poop

1.nov.06
Commentary from the Food Safety Network
Douglas Powell and Ben Chapman
www.foodsafety.ksu.edu

That's the first rule of public health.

And the first company that can assure consumers they aren't eating poop on spinach, lettuce, tomatoes and any other fresh produce, will make millions and capture markets across the country.
The recent outbreak of E. coli O157:H7 on bagged spinach which sickened over 200 and killed four was the tipping point: for farmers dealing with collapsed markets; for retailers who say they are now going to get serious about questioning their suppliers; and, for consumers who now realize that fresh produce is a significant source of foodborne illness and are voting with their wallets and their forks

-- how can they know if the leafy stuff is safe? Or tomatoes? Or cantaloupes, carrots and any other fresh produce?

After decades of refusing to publicly advertise food safety differences -- my spinach is safer than your spinach because these are the things I do on my farm and I can show you the data -- retail and food service chains may finally be forced to do just that.

And the sooner the better.

Fresh fruits and vegetables are good for us; we should eat more. Yet fresh fruits and vegetables are one of, if not the most, significant source of foodborne illness today in North America. Because fresh produce is just that - fresh, and not cooked -- anything that comes into contact is a possible source of contamination.

With an estimated 76 million illnesses and 5,000 deaths in the U.S. each and every year from foodborne illness, that's just too much.

For the 380 people who have been sickened by spinach, lettuce and maybe tomatoes in three separate outbreaks since August, and for a healthy fresh produce business, the farm, now more than ever, must be the first line of defense.

Some in the farm-to-fork food safety system want more of the same:
stronger checks of good agricultural practices on the farm (which have been available but not necessarily followed or enforced since 1998); more research on how dangerous bugs get on or in healthy produce; more vague press releases.

The definition of crazy is doing the same thing and expecting a different result.

After 400 outbreaks of foodborne illness associated with fresh produce in the past 15 years, after 20 outbreaks of deadly E. coli on lettuce and spinach in the past 10 years, and after eights years of happy talk about food safety on the farm, it's time for something new.

Asking for government regulation, like the Western Growers Association did earlier this week, is not the answer. Too much public money is already being spent to fix private sector problems. The fresh produce industry must accept its responsibility to market a safe product.

Successful and safe fresh produce suppliers of the future, and their marketers at grocery stores and restaurants will:

• embrace food safety from farm to fork;
• anticipate that, even with the best plans, food safety outbreaks will happen;
• have a proactive way to publicly state, this is how we do everything we can to reduce risk;
• demonstrate compassion;
• test to verify that food safety procedures are working the way they are supposed to;
• take responsibility and not blame consumers when produce makes them sick; and,
• keep their product out of David Letterman's top 10 list.

Guidelines are a first step, but more than anything, everyone -- from the person harvesting the spinach to the person selling the spinach -- must be compelled to take food safety seriously, even in the absence of an outbreak.

That means changing the culture of food safety; and marketing shapes culture.

American culture is awash in what Molly O'Neil calls food pornography, in which basics such as cooking and eating have been transformed to voyeurism and fantasy (watch the Food Network), describing food with "prose and recipes so removed from real life that they cannot be used except as vicarious experience."

The current culture of food (and food porn) needs to be replaced by a culture of safe food, grounded in microbiology. The blather about natural, local and wholesome food needs to be replaced by advertisements for microbiologically safe food.

The Americans economy is driven by competition and the produce sector should compete for the food dollar in grocery stores and restaurants across the country, using safety as a selling point. The farmers or company that uses the best science to keep poop off the plate, and couples that with employee commitment, will capture the imagination of a hungry public.

May the best food safety system win.

Dr. Douglas Powell is scientific director of the Food Safety Network at Kansas State University and Ben Chapman is a PhD student at the University of Guelph in Canada. They are the authors of, most recently, a book chapter entitled, Implementing On-Farm Food Safety Programs in Fruit and Vegetable Cultivation, in the recently published, Improving the Safety of Fresh Fruit and Vegetables
http://www.woodheadpublishing.com/en/book.aspx?bookID=831
dpowell@ksu.edu
785-317-0560 (cell)
www.foodsafety.ksu.edu

Produce Safety

This is a Power Point (in pdf) about how the spinach E. coli outbreak is only part of a larger problem of safe produce.

E-beam eliminates E. coli in ground beef, researchers say

Low levels of irradiation can reduce pathogen levels, including the potentially deadly E. coli, in carcasses used for ground beef, claim researchers.

A low dose, low penetration electron beam (E-beam) irradiation penetrating 15 millimetres below the surface of a carcass can effectively reduce pathogens, found Agricultural Research Service (ARS) scientists at the Roman L Hruska Meat Animal Research Centre in the US.
Pathogens are most prevalent on the surface of a carcass, but the risk of sub-surface contamination is high in ground beef because it is mixed so thoroughly.

Penetrating meat with E-beams instead of current methods of washing the surface of carcasses could therefore be more effective in reducing pathogens.

Keep reading

Chemists Decode Bacterial 'Conversations' In Effort To Block Deadly Infections

Eavesdropping can sometimes be a good thing.

Researchers are learning how to listen to a wide range of bacterial conversations -- the chemical signals bacteria use to communicate with each other -- in an effort to design new compounds to thwart deadly infections, particularly those involved in the growing problem of antibiotic resistance, according to an article scheduled for the Oct. 23 issue of Chemical & Engineering News, ACS' weekly newsmagazine.

C&EN associate editor Sarah Everts shows that researchers have made significant strides in decoding bacterial conversations, also known as quorum sensing, a phenomenon first discovered in the 1970s by a group of biologists who were exploring bioluminescent bacteria found in squid.

Keep reading

Pregnant Women: Keep Food Safe

When women are pregnant, their risk of developing foodborne illness increases and even a mild case of food poisoning can have serious consequences. Protect yourself and your unborn infant from foodborne illness by practicing good food safety habits.

Pregnant women should take special precautions when shopping for, handling, preparing and storing food since you are more vulnerable to foodborne illness. Do not eat meats, poultry, seafood and eggs that are raw or undercooked. Also, unpasteurized dairy products like raw milk and some imported cheeses can pose safety threats to pregnant women.

Everyone, not just pregnant women, can help prevent food poisoning by taking control of food safety in their homes and by following basic food safety tips:

Keep reading

Omaha Beef Company Recalls Ground Beef Products for Possible E. coli Contamination

Omaha Beef Company, Inc., a Danbury, Conn., firm, is voluntarily recalling approximately 1,680 pounds of ground beef products that may be contaminated with E. coli O157:H7, the U.S. Department of Agriculture's Food Safety and Inspection Service announced yesterday.

The products subject to recall include:


10-pound boxes of "HAMBURGER PATTIES, OMAHA BEEF CO., INC." (Label below)
Five- and 10-pound bags of "HAMBURGER, OMAHA BEEF CO., INC."


Each package bears the establishment number "Est. 2769" inside the USDA mark of inspection, as well as the case code, "101861."

The problem was discovered through routine FSIS microbiological testing. FSIS has received no reports of illnesses associated with consumption of these products.

Read more here

'Stomach flu' can be serious

Doctors call it "acute gastroenteritis."

To many other people, it's "stomach flu" (though real influenza is a respiratory, not digestive, illness).

Whatever you call it, a sudden illness involving diarrhea, vomiting or both is a miserable thing. And occasionally — as demonstrated by the recent deaths linked to E. coli-tainted spinach — it can be a dangerous thing.

But in the words of Chesapeake, Va., gastroenterologist Patricia Raymond: "The GI (gastrointestinal) tract has a limited palette of expression. You vomit, you cramp, you have diarrhea."

So how do you tell a really bad bug from one that is merely unpleasant? How do you tell one that came from food from one you picked up from a doorknob or a baby's diaper? In short, when should you worry?

Usually, doctors say, both worry and detective work are unnecessary: Whether the culprit is viral or bacterial, food-borne or not, you'll most likely recover in a couple of days and won't need medical attention. If you suspect the Thanksgiving stuffing, it's nice to let other family members know. And you should change your cooking habits (or your caterer). But there's rarely a need to send the whole clan in for a battery of tests and treatments.

Read more here

Putting the wash before the cart

For when a wipe won't do, a Green Bay company tackles germ anxiety at the grocery store.

That grocery cart you're putting your food, handbag and toddler into? It's teeming with germs.

Consider the handle. It's been touched by untold numbers of hands that have changed diapers, mopped up runny noses, picked up packages of raw chicken and meat, and been coughed on, sneezed in and drooled on.

Bacteria and viruses such as E.coli, staphylococcus, salmonella and influenza can live on grocery carts, scientists say. Though they caution not to get too panicked about the thought, experts say it is possible to catch something from the carts if conditions are right.

More here

Tracking Outbreaks Five Days a Week

Great article about tracking outbreaks.

"Last month's deadly E. coli outbreak in fresh bagged spinach is beginning to fade from public memory. Spinach is back on supermarket shelves and in salad bars, even as a team of about two dozen California state and federal investigators continue to work around the clock searching for the source of the outbreak.

The all-out intensity of the effort is warranted given that the outbreak has sickened 200 people and killed at least three. It provides a contrast, however, to the system that is supposed to be the front line for detecting outbreaks of foodborne illness--an even bigger issue these days with the potential threat of a terrorist attack on the food supply.

The system that health officials rely on to track outbreaks is called PulseNet. It's a network of public health labs run by the Centers for Disease Control. State and local labs that suspect an outbreak submit information such as the genetic makeup of whatever nasty bug is making the rounds into the network's database. That allows federal health officials to link clusters of illness in different locations across the country."


Keep reading here

The Problems of Raising Produce Free From Illness-Causing Bacteria

As investigators actively seek to identify sources and vehicles responsible for the introduction of E. coli O157:H7 onto California spinach that made its way into the food supply this fall, the Journal of Food Science this month provides up-to-date research on the various ways bacteria can survive on fresh produce.

The study, Interactions Affecting the Proliferation and Control of Human Pathogens on Edible Plants, is included in the October issue of JFS, published by the Institute of Food Technologists, the international, not-for-profit scientific society.

Authored by Ohio State University researchers Dan Aruscavage, Ken Lee, Sally Miller, and Jeffrey LeJeune, the study identifies many challenges. This includes:

- Micro-environmental changes that can enhance or adversely affect survival and proliferation of harmful organisms.
- Surface characteristics of produce that determine whether pathogens adhere to food.
- Protected sites on surfaces and other sites such as plant wounds that may enhance survival and proliferation of pathogens.
- Temperature and UV radiation affect enteric pathogen survival.
- Competition between organisms.

Keep reading here
.