Category Archives: Research

European Sprouted Seeds Legislation Due July 2013 are the USA to Follow?

Food Poisoning Bulletin Eurofins

The newly proposed produce safety rule of the Food Safety Modernization Act (FSMA) has a section devoted to sprouts because they “present a unique risk.” That’s because the ideal conditions for growing sprouts are also ideal for growing pathogens, as we have seen many times in recent years.

Since 1996, there have been 30  “sproutbreaks” where sprouts contaminated with Salmonella, Listeria, E. coli and other pathogens have caused outbreaks of illness. In 2012, sprouts were recalled for potential contamination at least seven times and caused one of the largest multi-state foodborne illness outbreaks of the year.  The 11-state outbreak which sickened 29 people was linked to sprouts served at a fast food sandwich chain. Also in 2012, Kroger, one of the nation’s largest grocery retailers decided to stop selling sprouts because of the risk they pose.

Some of the new requirements in the proposed rule are: requiring growers to take “measures reasonably necessary to prevent the introduction of hazards into or onto seeds or beans;” requiring that growing, harvesting, packing and holding of sprouts be done in a fully-enclosed building; “require that any food-contact surfaces that come in contact with sprouts, seeds, or beans must be cleaned and sanitized;”  required use  of a scientifically valid to reduce microorganisms before sprouting;  required testing for Listeria; and required record keeping of seed treatments  and environmental  monitoring.

Research – Online Dairy Herd Salmonella Risk Assessment

Dairy Herd Network19243

Salmonellosis  is a pervasive disease that is hard to keep out of a dairy operation.  With help from a new online tool from Pfizer Animal Health, dairy  producers can assess their risk of a Salmonella outbreak. The short self-assessment — found at www.SalmonellaRisk.com/Assessment — helps producers find proactive measures to help lessen the risk of a disastrous outbreak.

Salmonella is on the rise and is a risk to every dairy operation,” says Dr. Gary  Neubauer, senior manager, Dairy  Technical Services, Pfizer Animal Health. “Dairies are operating at a  faster pace than ever before with cattle, feed and people going on and  off the farm every day. It’s important for producers to consider how  much risk they are willing to take on.”

While taking the assessment, producers answer questions about on-farm hygiene, accessibility and animal health practices.  Once completed, the tool provides a personalized Salmonella reduction plan that can be printed or emailed to the herd veterinarian.  Together, producers and veterinarians can use this plan to review  current protocols and management practices, and establish  ways to help reduce risk and build immunity to Salm

Research – Norovirus and Hand Sanitisers

Food Poisoning Bulletinnorovirus-2(1)

In 2011, the Centers for Disease Control and Prevention conducted a study that looked at a substantial increase in novovirus illnesses in northern New England. Researchers looked at long-term care facilities in that area, trying to identify institutional risk factors for norovirus outbreaks. State health departments in Maine, New Hampshire, and Vermont used surveys, collecting information about facility attribvutes, routine staff use of alcohol-based hand sanitizer versus soap and water, facility cleaning practices, and occurrence of acute gastroenteritis outbreaks from December 2006 to Amarcy 2007.

Norovirus outbreaks peak in the winter months, when people are forced to spend more time together. Cruise ships, hospitals, and nursing homes usually suffer outbreaks because of the proximity of patients. The virus is extremely contagious and people can become infected through food and drink, person-to-person, and by touching contaminated surfaces.

The surveys found that of the 91 facilities that responded, 61 reported 73 outbreaks in that time frame. Of those outbreaks, 29 were confirmed norovirus. And facilities where staff were “equally or more likely to use alcohol-based hand sanitizer (ABHS) than soap and water for routine hand hygiene had higher odds of an outbreak than facilities with staff less like to use ABHS.”

Australia New Advice About Listeriosis – Rising Number of Cases

NSW Food Authority

The NSW Food Authority advises those most at risk to avoid the following ready to eat foods:

  • soft cheese such as brie, blue, fetta, camembert and ricotta
  • cold chicken or turkey particularly if sliced or diced – such as used in chicken sandwiches
  • cold meats, pate and meat spreads
  • pre-prepared or packaged salads greens and salads
  • raw seafood such as oysters, sashimi, smoked salmon or oysters (canned oysters are safe)
  • sushi
  • unpasteurised dairy products including raw goat’s milk and Roquefort cheese

“Signs of listeriosis include flu-like symptoms such as fever, muscle aches, nausea and diarrhoea that can sometimes lead to septicemia, meningitis and in some cases, miscarriage in pregnant women,” Dr McAnulty said.

Investigations into listeriosis are complex as it can be difficult to identify the source. Symptoms of illness can take up to 70 days to appear.

Healthy people usually show only mild symptoms. However, in people at risk, early symptoms of listeria infection include fever, headache, tiredness and aches and pains.

Other useful links can be found at the base of the articel in the link above.

Research – Campylobacter in Chicken Factory Workers

Food Safety NewsimagesCAYZ5I84

New analysis of Campylobacter infections among workers at a Virginia poultry plant offers hints about which employees more likely to fall ill from the bacteria.

Government researchers examined health data for plant employees from January 2008 through May 2011 and found that 29 Campylobacter cases had been confirmed during that time period.

Their findings reveal three characteristics of workers who were more likely to be sickened:

  • Recently employed: A full 83 percent of these patients had worked at the plant less than a month before falling ill, suggesting that illness is more common among new employees.
  • Worked in the live-hang area: Those whose job involved hanging live chickens were far more likely to be infected than those working in other parts of the facility. Of those sickened, 62 percent worked in a live-hang area.
  • Resided in diversion centers: Almost all the employees who contracted Campylobacter infections (26 out of 29) lived in state-operated diversion centers. The authors say the high illness rate among this group may be due to the fact that diversion center residents are disproportionately assigned to live-hang areas, where they are more likely to be exposed to the bacteria.

The fact that new employees fell ill more frequently than those who had been there more than a month is consistent with findings from other studies, which have suggested that workers develop immunity to the bacteria during the first few weeks of work.

CDC – Report

HPA – New Strain of Norovirus – Sydney 2012

HPANorovirus

As part of its surveillance for norovirus the Health Protection Agency (HPA) carries out genetic testing of norovirus strains from cases in England and Wales.

Testing carried out when cases started to rise in October revealed a cocktail of different strains that were circulating including Sydney 2012 and another called New Orleans 2009, although no one strain was dominant.

The latest testing of the most recent outbreaks, completed this week, has now shown that Sydney 2012 has overtaken all others to become the dominant strain.

Syndey 2012 was first seen in Australia (and takes its name from the place it was first identified) and has also been seen in France, New Zealand and Japan.

This new strain does not cause more serious illness than others and the methods of managing cases and outbreaks are the same for any strain of norovirus. These measures include washing the hands thoroughly and regularly particularly after using the toilet and before eating.

Dr David Brown, Director of Virology Reference Department at the HPA said, “It is always difficult to predict the norovirus season and this year is no different.

“Noroviruses mutate rapidly and new strains are constantly emerging. At the start of the season it is normal for outbreaks to be caused by a range of different strains. However as the season progresses particular strains are more successful and become dominant. The emergence of a new strain does not mean that it causes more serious illness and managing outbreaks and those will the illness remains the same.

Research – Do Reuseable Grocery Bags Present a Micro Risk?

Social Science Network

Abstract:

Recently, many jurisdictions have implemented bans or imposed taxes upon plastic grocery bags on environmental grounds. San Francisco County was the first major US jurisdiction to enact such a regulation, implementing a ban in 2007. There is evidence, however, that reusable grocery bags, a common substitute for plastic bags, contain potentially harmful bacteria. We examine emergency room admissions related to these bacteria in the wake of the San Francisco ban. We find that ER visits spiked when the ban went into effect. Relative to other counties, ER
admissions increase by at least one fourth, and deaths exhibit a similar increase.

UK – HPA Update on Norovirus Activity

HPANorovirus

Latest figures from the Health Protection Agency (HPA) show there have been 4,140 laboratory confirmed cases of norovirus this season (from week 27 to week 52 2012). The latest figures are 63 per cent higher than the number of cases reported at this point last year, when there were 2,535 cases.

The downward trend in the number of confirmed cases has continued in line with the previous report although this is to be expected following the Christmas and New Year period. We will expect to see the number of cases increase again over the following few weeks.

During the two weeks up to 6 January there were 33 hospital outbreaks reported, compared to 30 in the previous fortnight, bringing the total of outbreaks for the season to 673.

USA – Sprouts and Pathogenic Bacteria

Food Poisoning BulletinEurofins

Raw sprouts have been the cause of several food poisoning outbreaks in the last several years. In 2012, there were many recalls of raw sprouts for bacterial contamination. Several facilities, including Kroger and Jimmy John’s, decided to stop offering sprouts for sale altogether, although Jimmy John’s put the vegetables back on their menu in October 2012.

The Centers for Disease Control and Prevention (CDC) has been warning those in high risk groups to avoid sprouts completely, unless they are thoroughly cooked. And FoodSafety.gov just released information about what you, as a consumer, should know about sprouts.

USA – FDA – Releases Food Safety Rules

Food Safety News

After a year-long delay, two sweeping new food safety rules that will for the first time mandate produce safety standards and preventive controls nationwide will be released today and published to the Federal Register on Monday, according to the U.S. Food and Drug Administration.

“It’s a big deal that these two are coming out because it’s the central framework for prevention,” said Michael Taylor, FDA’s Deputy Comissioner for Foods and Veterinary Medicine, in an interview with Food Safety News. “We’re eager to get to the next phase of the process.”

The two rules were mandated by the Food Safety Modernization Act (FSMA) — a law that aims to shift the U.S. food safety system from being primarily reactive to focusing on prevention — which President Obama signed into law, with broad bipartisan support, exactly two years ago.

Since the law was enacted, the FDA has failed to keep up with the multiple deadlines set by Congress, in large part because the measures proposed by the agency were under review at the White House Office of Management and Budget’s Office of International and Regulatory Affairs for more than a year — a delay many stakeholders blamed on election politics.