Non-O157 Shiga toxigenic E. coli (STEC)

Non-O157 Shiga toxigenic E. coli (STEC)

Research on the Record with Reynold Bergen

There are between 50,000 and 100,000 different serotypes (strains) of E. coli. Most are harmless, some may be beneficial, but some produce a very dangerous Shiga toxin. Shiga toxigenic E. coli (STEC) can cause vomiting, diarrhea and abdominal pain in people. E. coli O157:H7 is the most well-known STEC, but it is not the only […] Read more



(Peggy Greb photo courtesy ARS/USDA)

Leafy greens eyed in E. coli outbreak

Federal health officials suspect leafy greens as a possible culprit in sickening 12 people in Canada, mainly in Alberta, with E. coli poisoning. The Public Health Agency of Canada on Wednesday said it’s considering a “possible link” to greens, such as lettuce, spinach, chard, kale or arugula, in 12 cases of E. coli O157:H7 poisoning […] Read more


cattle in a feedlot

Wider buffer zone from feedlots recommended

The current U.S. recommended buffer zone between cattle feedlots and vegetables may be too narrow, say scientists writing in the journal Applied and Environmental Microbiology. “The high percentages of leafy greens contaminated with E. coli suggest great risk for planting fresh produce 180 m (590 feet) or less from a feedlot,” the investigators write. That […] Read more

Vet Advice: Will we ever learn?

Our family moved recently. During the tedium of moving and editing files, a copy of an article I wrote 10 years ago fell from a bundle of papers. “Ginny’s Sick” stared at me from the floor and brought back a flood of memories: a grandchild in Stollery Children’s Hospital on the end of a transfusion […] Read more