A Listeria outbreak has 11 people infected with the outbreak strain of Listeria from four states, reported as of Nov 22, 2024. "Sick people's samples were collected from October 24, 2021, to July 31, 2024. Of 11 people with information available, nine have been hospitalized. In California, one pregnant person and their twins were sick and both infants died. Listeria was found in a sample from the mother and from one of the twin infants, but it could not be found in a sample from the other infant. "
"On October 21, 2024, FSIS conducted routine testing and follow-up activities of finished product by Yu Shang Food, Inc. Testing confirmed that the product was contaminated with Listeria. WGS showed that the Listeria in the pork snout product is closely related to bacteria from sick people. This means that people likely got sick from eating foods produced by Yu Shang Food, Inc."
The problem was discovered after FSIS performed routine testing and follow-up activities of finished product produced by Yu Shang Food, Inc. on October 21, 2024, that confirmed the product was positive for Listeria monocytogenes. Additional testing has confirmed that Listeria monocytogenes was detected in product and in environmental samples collected by FSIS. Whole genome sequencing was conducted determine if these samples match the outbreak strain. Working in conjunction with public health partners, FSIS determined that there is a link between the RTE meat and poultry products from Yu Shang Food, Inc. and an illness cluster.
https://www.cdc.gov/listeria/outbreaks/investigation-update-meat-and-poultry-11-24.html
Investigation Update: Listeria Outbreak, Meat and Poultry Products, 2024
November 22, 2024
CDC, public health and regulatory officials in several states, and the U.S. Department of Agriculture's Food Safety and Inspection Service (USDA-FSIS) are collecting different types of data to investigate a multistate outbreak of Listeria monocytogenes infections.