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...]
