Routine tests of raw beef manufacturing trim for six additional strains of E. coli
will begin, as scheduled, on June 4, the US Department of Agriculture's Food Safety and Inspection Service (FSIS) confirmed.
Trim found to be contaminated with any of the strains will not be allowed into the food supply and will be subject to recall.
The additional strains that will be treated as adulterants beginning June 4 are Shiga-toxin producing E. coli
(STEC) serogroups O26, O45, O103, O111, O121 and O145. FSIS said these serogroups are as dangerous as E. coli
O157:H7 because they can cause severe illness and even death. Young children and the elderly are at highest risk. Illnesses due to E. coli
serogroups other than O157:H7 outnumber those attributed to O157:H7. FSIS declared O157:H7 an adulterant in 1994 following a high-profile illness outbreak in 1993.
Source: US Department of Agriculture's Food Safety and Inspection Service (FSIS)