| Literature DB >> 10030631 |
P I Tarr1, N T Tran, R A Wilson.
Abstract
Escherichia coli O157:H7 was sought systematically in 1,400 samples of retail ground beef in Seattle in a 1-year prospective study. Sorbitol-nonfermenting, lactose-fermenting, indole-positive colonies isolated after enrichment culture were probed for the presence of Shiga toxin genes. Totals of 67,040 sorbitol-nonfermenting and 66,705 sorbitol-fermenting colonies were characterized, but E. coli O157:H7 was not identified. The sensitivity of this technique was usually sufficient to detect E. coli O157:H7 at a concentration below 1 CFU/g of meat. These data demonstrate that retail ground beef in Seattle is neither frequently nor heavily contaminated with E. coli O157:H7.Entities:
Mesh：
Substances：
Year: 1999 PMID： 10030631 DOI： 10.4315/0362-028x-62.2.133
Source DB: PubMed Journal: J Food Prot ISSN： 0362-028X Impact factor: 2.077