US FDA/CFSAN - On The Safety of Raw Milk
(with a word about pasteurization)
May 12, 2005
Keene et al. (1997)
- reported on a prolonged outbreak of E. coli O157:H7 which was caused by consumption of raw milk sold at Oregon grocery stores.
- It began in December of 1992 and did not end until June of 1994.
- When the culprit dairy was determined, it was discovered that only 4 of the 132 animals in the herd were initially positive for E. coli O157:H7.
- Despite public warnings, new labeling requirements and increased monitoring of the culprit dairy, retail sales and dairy-associated illnesses continued until June of 1994.