A recurring E. coli O157:H7 strain linked to leafy greens outbreaks has been identified, according to the Centers for Disease Control and Prevention (CDC). The report was issued in the CDC's Dispatch for September 2023. Researchers found that this strain emerged in late 2015. The strain is emerging, reoccurring, or persistent (REP strain) and has caused illness over an extended time period. E. coli O157H7 causes about 63,000 domestically acquired foodborne illnesses in the United States every year, and causes 20 deaths. This illness causes symptoms including severe abdominal cramps and bloody diarrhea. A complication of this infection, called hemolytic uremic syndrome, can develop in children under the age of five, which is a ty-pe of kidney failure. Healthy cattle are the … [Read more...]
Canada Issues Temporary Requirements for US Romaine
Canada issues temporary requirements for romaine lettuce imported from the United States after several E. coli O157:H7 outbreaks were linked to that food. The lettuce is imported from the California Salinas Valley counties of Santa Cruz, Santa Clara, San Benito, and Monterey. Safe Food For Canadians (SFC) license conditions have been implemented for the romaine lettuce originating from the United States between September 28 and December 20, 2023. That includes romaine lettuce and salad mixes containing romaine. Importers must declare that the product does not originate from those areas, or submit an attestation form and Certificates of Analysis for each shipment to demonstrate that the lettuce does not contain detectable levels of E. coli O157:H7. These conditions are in addition … [Read more...]
Persistent Strain of E. coli O157:H7 in United States, Says CDC
The CDC says that there is a persistent strain of E. coli O157:H7 in the United States that has caused illnesses and outbreaks. Illnesses caused by this strain, REPEXH01, occur year round but are less common in the winter. This strain has sickened people through contaminated food and contaminated recreational water. Persistent is a term used by the CDC to describe strains that have caused illnesses for years. Even though the number of illnesses may change over time, they continue to cause sickness. And these strains are sometimes linked to more than one course, making them more difficult to control. The strain is "relatively" diverse genetically, within 21 allele differences of one another. That is more diverse than pathogens that cause typical multistep foodborne illnesses … [Read more...]
History of Romaine E. coli O157:H7 Outbreaks is Long
With the recent Wendy's E. coli romaine lettuce outbreak in the news, how many of these types of outbreaks have been linked to romaine lettuce in the past? Quite a few. This is a look back at the history of romaine E. coli O157:H7 outbreaks. During the pandemic in the years 2020 to 2021, there were many E. coli outbreaks that were not solved, although a few were allegedly linked to romaine. They include three outbreaks in 2020. It was unusual that last year there were no E. coli O157:H outbreaks linked to romaine, since that history is lengthy. However, there were five food poisoning outbreaks linked to packaged leafy greens in 2021, but not specifically E. coli O157:H7. Recent Romaine E. coli O157:H7 Outbreaks The first is the ongoing E. coli O157:H7 outbreak that may be linked … [Read more...]
