In 2025, a genetically unique hybrid STEC/STEC strain was the cause of a foodborne illness outbreak that affected exclusively adults, with 90 percent of patients developing hemolytic uremic syndrome (HUS) and three deaths occurring.
During its investigation of an ongoing Escherichia coli O157:H7 outbreak involving Raw Farm-brand unpasteurized cheddar cheese, FDA detected E. coli in a product sample not matching the current outbreak strain, but instead matching a strain from a different 2025 outbreak.
The company says the recall is being issued “under protest” and “as a path forward,” while continuing to contest the epidemiological evidence provided by FDA.
Nearly all of the ill people interviewed reported consuming Raw Farm-brand raw dairy products. Testing and an onsite inspection of Raw Farm’s operation in California is ongoing. Raw Farm LLC has yet to issue a recall.
“If mandatory authority needs to be strengthened, the Food Safety Caucus stands ready to tackle this issue at FDA’s request,” wrote Congress members in a statement about the ongoing E. coli outbreak involving Raw Farm raw cheese products. Raw Farm has so far refused to recall.
A total of seven patients—four of whom are three years of age or younger—have been sickened in three states. Epidemiologic evidence indicates that RAW FARM-brand unpasteurized cheddar cheese products are the likely vehicle of illness, but product testing is ongoing.
