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Testing of Raw Ground Beef Component (RGBC) Samples for E. coli O157:H7 and non-O157 Shiga toxin-producing E. coli (STEC): Year-to-Date Totals

Table 1 presents the results from analysis of raw ground beef component samples for non-O157 STECs. Results are from FSIS routine and follow-up sampling programs. Table 2 presents the results from analysis of raw ground beef component samples for both E. coli O157:H7 and for the non-O157 STECs by each non-O157 STEC serogroup. Information is based upon data in the FSIS electronic data system as of November 16, 2014.

Related Information: All E. coli Tables

Table 1: Results from Analysis of Raw Ground Beef Component Samples for non-O157 STEC

Results from Analysis of Raw Ground Beef Component Samples for non-O157 STEC 1
Raw Ground Beef Components (RGBC) 2
Source As of November 17, 2013 As of November 16, 2014
Number Analyzed Number Positive 3 Percent Positive Number Analyzed Number Positive 3 Percent Positive
Federal Plants 3,286 23 0.70 3,274 27 0.82
Trim Verification
2,372 15 0.63 2,453 13 0.53
Follow-up to Raw Ground Beef (RGB) Positive
239 3 1.26 122 3 2.46
Follow-up to RGBC Positive
656 4 0.61 467 9 1.93
Non-routine Follow-up/Traceback
19 1 5.26 232 2 0.86
Imports 448 1 0.22 502 3 0.60


1 Results are posted according to the sample analysis completion date.

2 FSIS test results for the 6 target non-O157 STECs appear for only samples of beef manufacturing trimmings from cattle slaughtered on-site on or after June 4, 2012. At this time, only beef manufacturing trimmings and not components (such as bench trim, or other components of ground beef such as cheek meat and head meat) are eligible for testing for non-O157 STEC, as well as E. coli O157:H7.

3 The Number Positive column on this table includes all samples that were positive for non-O157 STEC overall and does not reflect the total number of individual positive serogroups listed in the Non-O157 STEC (by serogroup) and E. coli O157:H7 table . This is due to the possibility that one sample may be positive for multiple serogroups.


Table 2. Non-O157 STEC (by serogroup) and E. coli O157:H7

Non-O157 STEC (by serogroup) and E. coli O157:H7 YTD 1
Raw Ground Beef Components (RGBC) 2
Target STEC 3 As of November 16, 2014
Federal Plants Import
Trim Verification
Percent Positive
(Number)
Follow-up to RGB
Positive at Supplier
Percent Positive
(Number)
Follow-up to RGBC Positive
Percent Positive
(Number)
Non-routine Follow-up/ Traceback
Percent Positive
(Number)
Verification/ Follow-up
Percent Positive
(Number)
O157:H7 0.31%
(8/2,568)
0.69%
(1/144)
 0.21%
(1/478)
0.85%
(2/234)
0.18%
(1/557)
 
Total non-O157 STEC 0.53%
(13/2,453)
2.46%
(3/122)
2.14%
(10/467)
0.86%
(2/232)
0.60%
(3/502)
O26
0.12%
(3/2,453)
0.00%
(0/122)
0.64%
(3/467)
0.43%
(1/232)
0.20%
(1/502)
O45
0.00%
(0/2,453)
0.00%
(0/122)
0.43%
(2/467)
0.00%
(0/232)
0.00%
(0/502)
O103
0.33%
(8/2,453)
0.82%
(1/122)
0.86%
(4/467)
0.00%
(0/232)
0.40%
(2/502)
O111
0.08%
(2/2,453)
1.64%
(2/122)
0.21%
(1/467)
0.43%
(1/232)
0.00%
(0/502)
O121
0.00%
(0/2,453)
0.00%
(0/122)
0.00%
(0/467)
0.00%
(0/232)
0.00%
(0/502)
O145
0.00%
(0/2,453)
0.00%
(0/122)
0.00%
(0/467)
0.00%
(0/232)
0.00%
(0/502)


1 Results are posted according to the sample analysis completion date.

2 FSIS test results for the 6 target non-O157 STECs appear for only samples of beef manufacturing trimmings from cattle slaughtered on-site on or after June 4, 2012. At this time, only beef manufacturing trimmings and not components (such as bench trim, or other components of ground beef such as cheek meat and head meat) are eligible for testing for non-O157 STEC, as well as E. coli O157:H7.

3 Positives and Percent Positives on this table include all serogroups tested and do not reflect the total number of individual positive samples on the Individual Positives and the non-O157 STEC YTD tables. This is due to the possibility that one sample may be positive for multiple serogroups.

View the information in Table 2 by Source (beef, veal, etc.)

Last Modified Nov 21, 2014