Research – Water safety checks dangerously underestimate pathogen levels, study suggests

Phys Org

Deadly bacteria lurking in drinking water storage tanks could be missed by standard health and safety tests, scientists have warned in a new report.

Cold water storage tanks supplying public drinking water are regularly checked for harmful pathogenic bacteria such as Legionnaires’ disease and E.coli.

However, microbiological analysis by researchers from Brunel University London found that samples taken as standard from the top of the tank are 40% less likely to raise a red flag than samples taken from the opposite end.

One in five samples taken from the top of the tank didn’t trigger the urgent action that samples from the bottom of the same tank showed was needed.

“These results call into question the reliability of present measures used to protect the public from waterborne pathogenic diseases, including Legionella,” said Aji Peter, a Ph.D. student from Brunel’s Institute of Environment, Health and Societies, who carried out the research.

Cold water storage tanks are often found on the roofs or in the basements of public buildings such as schools and hospitals, and can be a source of repeated bacterial contamination.

Current safety regulations require a of water be taken from under the ball valve at the top of the tank for regular microbiological monitoring, although scientists are now calling for the standard safety tests to be changed to look at samples taken from the far end of the tank, where is likely to be warmer and hold more bacteria-feeding sediment.

More information: Aji Peter et al. Present-day monitoring underestimates the risk of exposure to pathogenic bacteria from cold water storage tanks, PLOS ONE (2018). DOI: 10.1371/journal.pone.0195635

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USA – More Rose Acre Farm Shell Eggs Recalled For Possible Salmonella Contamination

Food Poisoning Bulletin Salmonella Eggs Food Poisoning Food Safety

The FDA has posted another notice for recalls of shell eggs for possible Salmonella contamination. There is a multistate Salmonella Braenderup outbreak linked to other recalled eggs produced by Rose Acre Farms that has sickened at least 23 people in 8 states.

Eggs in this new recall, posed on April 16, 2018, have not been associated with any illnesses. The eggs were purchased from Rose Acre Farms and re-packaged at the Cal-Maine Food Inc.’s Dade City, Florida location. The company was notified by Rose Acre Farms about the potential contamination and is issuing the recall out of an abundance of caution.

Cal-Maine is recalling one load, or 23,400 dozen eggs. The eggs have the plant number P-1359D, and will have a Julian date of either 048A or 049A and a best by date of April 2, 2018, or April 3, 2018. The Julian date follows the plant number, for example, P-1359D-048A. The eggs were distributed in Florida. All customers who have received these eggs have been notified of the recall.

USA – Sam’s Club Recalls Taylor Farms Romaine

Food Poison Journal

Sam’s Club sent out a letter to members advising them to throw away the lettuce products listed below as a precautionary measure:

Dear Sam’s Club Member:

We were notified that Taylor Farms, as a result of a Center for Disease Control and Prevention (CDC) public advisory, has initiated a withdrawal on the items listed below due to the potential to be contaminated with E. coli.

USA – Cryptosporidium cases reported in La Crosse County, Wisconsin

Outbreak News Today 


La Crosse County health officials report experiencing an increase in reported Cryptosporidiosis cases. La Crosse County has had 4 cases of cryptosporidiosis during the past 2 weeks according to Carol Drury, RS, Environmental Health Manager with the La Crosse County Health Department.

Four additional cases have been reported statewide associated with exposure from La Crosse County. The Health Department has identified that the cases have occurred among children and adults.

Public Health/Environmental Health staff are working to prevent further spread by contacting infected persons, recommending treatment and hygiene practices per guidelines from the Wisconsin Department of Health Services.

USA – Animal Feed – Salmonella – Boost Me Mighty Meaty Beef Topper Meal Enhancer

Outbreak News Today kswfoodworld salmonella

TruPet, LLC of Milford, OH, is voluntarily recalling a limited amount of Boost Me Mighty Meaty Beef Topper Meal Enhancer because the products have the potential to be contaminated with Salmonella. The recall is limited to 400 cases of the product, as identified below.

The following affected “Boost Me” products were distributed in the continental USA via online retailer and through direct delivery:Affected product can be identified by comparing the following lot number: “Boost Me Mighty Meaty Beef Topper Meal Enhancer” with “lot number #20190531 13815 “.

No products other than the specific product identified above are subject to this voluntary recall.

USA – New Kratom Recalls – Salmonella

Food Poison Journal

All Powdered Kratom from Triangle Pharmanaturals Recalled

Triangle Pharmanaturals, LLC (“Triangle”) of Las Vegas, Nevada is recalling all kratom (mitragyna speciosa) powder products it manufactured, processed, packed, and/or held, between April 4, 2017 to Present.

Food Safety News

A  company in Utah is recalling “NxtGen Botanicals Maeng Da Kratom” labeled bottles of kratom supplements because they has the potential to be contaminated with Salmonella. At least one illness has been reported in connection with this brand of kratom.

The recall notice does not specify what strain of Salmonella federal inspectors found in the NxtGen kratom, but at least 132 people in 38 states have been infected in an ongoing Salmonella outbreak traced to kratom products, according to the Food ad Drug Administration’s latest list of recalled kratom products.

Canada – Updated Food Recall Warning – Culinary Creations Gourmet brand & Denny’s Express brand roast beef-containing sandwiches recalled due to Listeria monocytogenes


Recall details

Ottawa, April 18, 2018 – The food recall warning issued on April 17, 2018 has been updated to include additional product information. This additional information was identified during the Canadian Food Inspection Agency’s (CFIA) food safety investigation.

R.T. Fresh Prepared Foods Inc. is recalling Culinary Creations Gourmet brand & Denny’s Express brand roast beef-containing sandwiches from the marketplace due to possible Listeria monocytogenes contamination. Consumers should not consume the recalled products described below.

The following products were sold through retailers and automatic vending machines in Alberta and Ontario.

Recalled products

Brand Name Common Name Size Code(s) on Product UPC
Culinary Creations Gourmet Beef and Cheese on Onion Bun 190 g Best Before
AL 24
AL 30
MA 01
MA 02
MA 08
MA 17
6 89069 18085 6
Culinary Creations Gourmet Roast Beef Sandwich 155 g Best Before
AL 30
MA 08
MA 16
6 89069 18093 1
Culinary Creations Gourmet Jumbo Beef & Swiss Submarine (halved) 250 g Best Before
AL 30
MA 02
MA 07
MA 08
MA 14
MA 15
MA 17
6 89069 18097 9
Culinary Creations Gourmet Jumbo Beef & Swiss Submarine 250 g Best Before
AL 30
MA 07
MA 15
6 89069 18097 9
Denny’s Express Beef & Swiss Submarine 250 g 0998 7 76393 40003 0