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Most food recalls in the U.S. are due to Listeria Food Safety Tech has reported that in 2016 about 550 food products were recalled in the US.  Of the recalled products, 275 were due to microbial contamination. Of the recalls, due to microbial contamination, 65% were due to Listeria monocytogenes. Salmonella accounted for 21% of the recalls, while E. coli accounted for only 3% of the recalls. As we reported, earlier this trend in continuing this year (More Recalls Caused by Fear of Listeria monocytogenes Contamination and In the last few days, (6/14-6/16) there have been several more recalls due to Listeria) with much more recalls due to Listeria. CDC...

Findings of the Papaya Outbreak  An investigation of a multistate outbreak of Salmonella Kiambu has being conducted by the CDC, FDA and public health officials in several states. As of last Friday (7/21/17), 47 individuals from 12 states have been infected with Salmonella Kiambu, the outbreak strain. Whole genomic sequencing (WGS) shows that the Salmonella Kiambu isolated from the infected people is genetically closely related, and therefore, are more likely to share the same source of infection. More than third of the affected people were hospitalized, and one death was reported in New York City. The epidemic chart below shows the number of people who became ill each day. Illnesses that...

Although there was an extremely high number of recalls due to Listeria monocytogenes in the past three months, the majority of the FDA recalls were due to allergens many caused by mislabeling.  Undeclared allergens accounted for about 90% of labeling related recalls. The Food Allergen Labeling and Consumer Protection Act of 2004 requires that packaged food labels include declarations of the eight major food allergens: eggs, milk, wheat, peanuts, soybeans, tree nuts, fish and crustacean shellfish. Allergens are unique in food safety as they are not contaminants like Salmonellaor Listeria, but can be still dangerous to susceptible individuals.  The sole protection for allergic individuals is the...

Nature published in July 2017, an article byGwangseong Kim, Horatiu Vinerean & Angelo Gaitas on a simple novel device to concentrate and detect food pathogens (immunocapturing method). The technique has the potential of being used for both clinical applications and food testing.  System Set-Up The technique employs polymer (polydimethylsiloxane) tubes (1.02 mm in diameter) coated with an antibody. The test sample is circulating through the antibody coated tubes. The re-circulating of liquid media containing the bacteria through the antibody conjugated tubes result in the capturing of the pathogens by the conjugated antibodies. Several tubes can be used with different antibodies in each, thereby allowing the...