On July 24, 2024, John tested positive for Listeria, while in the ICU. John’s sample was genetically linked, by Whole Genome Sequencing, to a cluster of Listeria associated with potatoes from Mexico.
Figure: SNP-tree of sequences of REP strain uploaded to the public sequence repository at
NCBI as of July 2025
On July 16
On July 24, 2024, John tested positive for Listeria, while in the ICU. John’s sample was genetically linked, by Whole Genome Sequencing, to a cluster of Listeria associated with potatoes from Mexico.
Figure: SNP-tree of sequences of REP strain uploaded to the public sequence repository at
NCBI.
On July 16, 2024, John was admitted
We have seen a rash of Listeria and Salmonella outbreaks over the last months (in addition to outbreaks that get little or no mention – hint E. coli), but I have found a disturbing pattern – victims of the outbreaks are not being told what product caused their illness or a family member’s death
The CDC reported as of June 18, 2025, a total of, 17 people infected with the outbreak strain of Listeria have been reported from 13 states: Florida 1, Illinois 1, Indiana 1, Louisiana 2, Michigan 2, Minnesota 1, Missouri 1, Nevada 1, North Carolina 1, Ohio 1, South Carolina 1, Texas 3 and Virginia 1.
Listeria is a gram-positive, rod-shaped bacterium that is ubiquitous and can grow under either anaerobic (without oxygen) or aerobic (with oxygen) conditions.
A. The Prevalence of Listeria in Food and the Environment
Listeriosis is one of the most important bacterial infections worldwide that arises mainly from the consumption of contaminated food.[1] The disease
FSIS and public health partners are investigating an outbreak of Lm that currently includes 17 ill people in 13 states. As of June 17, 2025, there have been three reported deaths and one fetal loss associated with this outbreak.
FreshRealm establishments in San Clemente, Calif., Montezuma, Ga., and Indianapolis, Ind., are recalling chicken fettuccine alfredo
A total of 42 people infected with the outbreak strain of Listeria monocytogenes were reported from 21 states – Alabama, California, Colorado, Connecticut, Florida, Illinois, Indiana, Maryland, Michigan, Minnesota, Missouri, North Carolina, Nevada, New York, Ohio, Oklahoma, Pennsylvania, Tennessee, Texas, Washington, and West Virginia.
Illnesses started on dates ranging from August 17, 2018, to March
With the CDC and FDA reported on a Listeria outbreak over the weekend and others still being investigated, what do consumers need know.
Listeria is a gram-positive, rod-shaped bacterium that is ubiquitous and can grow under either anaerobic (without oxygen) or aerobic (with oxygen) conditions.
A. The Prevalence of Listeria in Food and the Environment
Sandwiches sold in California, Arizona, Nevada and Washington.
As of May 9, 2025, a total of 10 people infected with the outbreak strain of Listeria have been reported from two states. Sick people’s samples were collected on dates ranging from December 3, 2023, to September 9, 2024. Of 10 people with information available, all 10
Despite depletion of their ranks at FDA, investigations are still being posted on the FDA”s Outbreak Table.
Investigations can be a long and winding road.
