“This is like déjà vu all over again” by Yogi Berra is what I was thinking as a read the below article from the REVUE CANADIENNE DE SANTÉ PUBLIQUE as I was researching the FDA’s “60 day rule.”
Lance Honish, BSc, Gerry Predy, MD, Nyall Hislop, BSc, Linda Chui, MSc, Kinga Kowalewska-Grochowska, MD, Larry Trottier, BSc, Cornelia Kreplin, DVM, Ingrid Zazulak, CPHI(C)
Background: A cluster of E. coli O157:H7 hemorrhagic colitis was identified in metro Edmonton, Alberta through notifiable disease surveillance in late 2002.
Methods: Environmental health officers collected food histories and clinical information from cases in the cluster. The provincial public health laboratory conducted pulsed field gel electrophoresis (PFGE) analysis on E. coli O157:H7 isolates from cluster cases. Public health and food regulatory agencies conducted an investigation when a food source (unpasteurized gouda cheese) was implicated.
Results: PFGE analysis revealed an “outbreak” profile in 13 cases. Onset dates for the outbreak cases ranged between October 2002 and February 2003. Two cases, aged 22 months and 4 years, developed hemolytic uremic syndrome as a result of their infection. Consumption of unpasteurized Gouda cheese produced at a local dairy farm was reported by 12 of 13 outbreak cases in the 2 to 8 days prior to illness. E. coli O157:H7 was isolated from 2 of 26 cheese samples manufactured by the implicated producer. The cheese isolates had indistinguishable PFGE profiles as compared with outbreak case isolates. Implicated cheese was found to be contaminated with E. coli O157:H7 104 days after production, despite having met regulated microbiological and aging requirements.
Conclusion: To our knowledge, this is the first confirmed outbreak of E. coli O157:H7 infection in Canada associated with raw milk hard cheese. A review of federal legislation vis-à-vis raw milk hard cheese may be in order.
It is going to make it a bit hard for Bravo to complain that the recent E. coli O157:H7 outbreak was something that could not be anticipated. And, in this 2002-2003 outbreak the Gouda had aged 104 days! Makes the FDA’s “60 day rule” seem more than a bit beside the point.