CDC FoodCORE Year Four Cumulative Metrics - Salmonella, Shiga Toxin-producing Escherichia coli, and Listeria (SSL)
Data Report Period: January 1, 2014 to December 31, 2014
| Performance Metrics: (See SSL Metrics for complete language and definitions) |
Salmonella Measures Mean (Range) |
STEC Measures Mean (Range) |
Listeria Measures Mean (Range) |
SSL Measures Mean of Individual Means |
|---|---|---|---|---|
| 1a. Total number of isolates and isolate-yielding specimens1 | 777.7 (225 – 1422) | 196.6 (73 – 863) | 20.4 (10 – 53) | 331.6 |
| 1b. Number of primary isolates/isolate-yielding specimens | 704.7 (183 – 1321) | 110.6 (32 – 227) | 18.1 (9 – 47) | 277.8 |
| 2a. Total number of STEC clinical specimens or samples received at PHL | N/A | 236.4 (83 – 749) | N/A | N/A |
| 2b. Number; Percent isolate-yielding STEC specimens or samples | N/A | 104 (12 – 184); 50.6% (14% – 76%) |
N/A | N/A |
| 3. Median days from isolation/isolate-yielding specimen collection to receipt at PHL1 | 4.9 days (3 – 7 days) | 3.9 days (3 – 5 days) | 5.5 days (3 – 8 days) | 4.8 days |
| 4. Median days from receipt of isolate-yielding specimens at PHL to recovery of isolate | 2.4 days (0 – 6 days) | 3.1 days (0 – 8 days) | 1.2 days (0 – 2 days) | 2.2 days |
| 5. Percent of primary isolates with serotype information1 | 98.7% (94 – 100%) | 88.9% (66 – 100%) | N/A | 93.8% |
| 6. Median days from isolate receipt (recovery) at PHL to serotype result1 | 3.2 days (2 – 6 days) | 3.9 days (2 – 6 days) | N/A | 3.6 days |
| 7. Percent of primary isolates with PFGE information1 | 95.8% (87 – 100%) | 95% (85 – 100%) | 88.9% (0 – 100%) | 93.2% |
| 8a. Median days from isolate receipt (recovery) at PHL to PulseNet upload1 | 5.5 days (3 – 17 days) | 5.1 days (2 – 15 days) | 3 days (2 – 5 days) | 4.5 days |
| 8b. Median days from isolate receipt (or recovery) to receipt at PFGE lab | 2.3 days (1 – 5) | 2.8 days (0 – 5 days) | 1.5 days (1 – 2 days) | 2.2 days |
| 9. Number of laboratory confirmed cases reported to epidemiology staff1 | 726.1 (181 – 1392) | 118 (11 – 222) | 15.7 (9 – 37) | 286.6 |
| 10a. Percent of cases with attempted interview1 | 98.9% (97 – 100%) | 98% (92 – 100%) | 99.1% (94 – 100%) | 98.6% |
| 10b. Median days from case report to interview attempt | 0.8 days (0 – 2 days) | 1 days (0 – 2 days) | 0.9 days (0 – 2 days) | 0.9 days |
| 10c. Percent of cases with complete demographic data | 89.8% (77 – 97%) | 89.7% (69 – 100%) | 95.2% (76 – 100%) | 91.6% |
| 10d. Percent of cases with exposure history1 | 87.3% (74 – 93%) | 90.1% (85 – 100%) | 85.3% (40 – 100%) | 87.6% |
| 10d-i. Percent of SSL cases with full shotgun or case exposure completed | 77.3% (42 – 91%) | 80.5% (37 – 94%) | 81.8% (0 – 100%) | 79.9% |
| 10e. Percent of cases with serotype information | 96.5% (91 – 100%) | 92.6% (69 – 100%) | N/A | 94.6% |
| 10f. Percent of cases with PFGE information | 93.8% (82 – 100%) | 91.8% (76 – 100%) | 82.4% (0 – 100%) | 89.3% |
| 10f-i. Percent of cases with PFGE with complete epi data1 | 75% (53 – 88%) | 77.4% (65 – 90%) | 72.9% (0 – 93%) | 75.1% |
| 10g. Reasons for not interviewing cases | 717 (7.3%) have reason for not interviewing | 62 (6.0%) have reason for not interviewing | 15 (1.5%) have reason for not interviewing | 794 (4.9%) have reason for not interviewing |
| 10g-i. Lost to Follow-up: Number; Percent | 84.2 (18 – 333); 45.4% (9-93%) | 5.8 (0 – 12); 31.3% (0 – 100%) | 0.8 (0 – 1); 14.8% (0 – 50%) | 30.3; 30.5% Sum = 544 |
| 10g-ii. Refused: Number; Percent | 10.4 (3 – 25); 10.6% (1 – 25%) | 1.7 (0 – 5); 12% (0 – 43%) | 0.2 (0 – 1); 8.3% (0 – 33%) | 4.1; 10.3% Sum = 86 |
| 10g-iii. Time lag too long: Number(Percent) | 3 (0 – 13); 1.1% (0 – 4%) | 0.2 (0 – 1); 0.1% (0 – 1%) | 0 (0 – 0); 0% (0 – 0%) | 1.1; 0.4% Sum = 19 |
| 10g-iv. Other: Number; Percent | 17.3 (1 – 47); 23.6% (1 – 94%) | 2 (0 – 9); 23.3% (0 – 82%) | 1.7 (0 – 4); 69.1% (0 – 100%) | 7.0; 38.7% Sum = 145 |
| 11. Number of clusters | 63.8 (16 – 117) | 8.6 (0 – 22) | 1.6 (0 – 8) | 24.7 |
| 12a. Number; Percent of clusters with routine interview of cases1 | 55.7 (5 – 117); 84.2% (31 – 100%) | 9 (4 – 22); 93.6% (56 – 100%) | 3 (1 – 8); 90% (50 – 100%) | 22.6; 89.3% |
| 12b. Number; Percent of clusters with supplemental/targeted interviewing of cases | 13.7 (3 – 33); 24.1% (3 – 66%) | 3.5 (0 – 10); 31.5% (0 – 56%) | 2 (1 – 4); 73.2% (50 – 100%) | 6.4; 42.9% |
| 12c. Number; Percent of clusters where an analytic epidemiologic study conducted (>10 Salmonella or STEC cases, >5 Listeria cases)1 | 2 (0 – 7); 4.5% (0 – 20%) | 0.7 (0 – 2); 6.9% (0 – 33%) | 0.4 (0 – 1); 9.2% (0 – 33%) | 1.0; 6.9% |
| 13. Number; Percent of clusters with suspect vehicle/source identified1 | 5.8 (0 – 17); 8.1% (0 – 17%) | 2 (0 – 9); 15.4% (0 – 50%) | 0.2 (0 – 1); 10% (0 – 50%) | 2.7; 11.2% |
| 14. Number; Percent of clusters with confirmed vehicle/source identified1 | 3.9 (0 – 9); 7.5% (0 – 26%) | 1.9 (0 – 6); 14.6% (0 – 33%) | 1 (0 – 2); 45.8% (0 – 100%) | 2.3; 22.6% |
| 15. Number; Percent of clusters with identifa. Exclusion of ill person(s)ied vehicle/source with: | ||||
| a. Exclusion of ill person(s) | 1.6 (0 – 8); 11% (0 – 47%) | 3.4 (0 – 15); 25% (0 – 100%) | 0 (0 – 0); 0% (0 – 0%) | 1.7; 12.0% |
| b. Remediation or closure | 0.9 (0 – 4); 6% (0 – 25%) | 2 (0 – 8); 15.4% (0 – 53%) | 0.3 (0 – 1); 33.3% (0 – 100%) | 1.1; 18.2% |
| c. Educational campaign | 1.4 (0 – 5); 14.3% (0 – 63%) | 2 (0 – 6); 16.3% (0 – 40%) | 0 (0 – 0); 0% (0 – 0%) | 1.1; 10.2% |
| d. Media/public messaging | 1.6 (0 – 6); 18.8% (0 – 75%) | 2 (0 – 7); 16% (0 – 47%) | 0.7 (0 – 2); 22% (0 – 66%) | 1.4; 18.9% |
| e. Regulatory action (recall, hold) | 0.9 (0 – 4); 9.4% (0 – 50%) | 1.2 (0 – 3); 10.6% (0 – 33%) | 1 (0 – 2); 33% (0 – 66%) | 1.0; 17.7% |
| 16. Number; Percent of clusters linked to a restaurant/food establishment with EHA1 | 4.4 (0 – 15); 20.2% (0 – 75%) | 2.3 (0 – 7); 26.2% (0 – 87%) | 0.4 (0 – 1); 9.2% (0 – 33%) | 2.4; 18.5% |
| 17. Number; Percent of clusters with food/environmental sample collected for testing1 | 4 (1 – 13); 7.3% (1 – 21%) | 2 (0 – 6); 11% (0 – 33%) | 0.4 (0 – 1); 9.2% (0 – 33%) | 2.1; 9.2% |
| 18. Number; Percent of clusters where EH, Ag, regulatory, or food safety program staff contacted1 | 19 (2 – 109); 25.2% (6 – 100%) | 3.9 (0 – 11); 24.3% (0 – 61%) | 1.4 (0 – 2); 60% (0 – 100%) | 8.1; 36.5% |
| 19. Number; Percent of outbreaks with NORS form completed1 | 16.5 (1 – 109); 65.9% (3 – 100%) | 4.1 (1 – 14); 84.1% (11 – 100%) | 1.5 (1 – 2); 56.5% (13 – 100%) | 7.4; 68.8% |
1 Minimum reporting requirement for FoodCORE Centers
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Page last reviewed: April 12, 2019