CDC FoodCORE Year Five Cumulative Metrics - Salmonella, Shiga Toxin-producing Escherichia coli, and Listeria (SSL)
Data Report Period: January 1, 2015 to December 31, 2015
| Performance Metrics: (See associated document 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 specimens | 984 (486 – 1555) | 229.9 (92 – 468) | 19.9 (2 – 45) | 411.0 |
| 1b. Number of primary isolates/isolate-yielding specimens | 891.3 (438 – 1528) | 152.7 (15 – 268) | 17.9 (2 – 43) | 354.0 |
| 2a. Total number of STEC clinical specimens or samples received at PHL | N/A | 332.9 (111 – 822) | N/A | N/A |
| 2b. Number; Percent isolate-yielding STEC specimens or samples | N/A | 181.8 (28 – 468); 57.3% (34% – 83%) |
N/A | N/A |
| 3. Median days from isolation/isolate-yielding specimen collection to receipt at PHL | 4.8 days (3 – 7 days) | 3.7 days (2 – 5 days) | 5.1 days (2 – 8 days) | 4.6 days |
| 4. Median days from receipt of isolate-yielding specimens at PHL to recovery of isolate | 2.3 days (0 – 6 days) | 3.1 days (1 – 5 days) | 1.2 days (0 – 3 days) | 2.4 days |
| 5. Percent of primary isolates with serotype information | 97.8% (88 – 100%) | 86.7% (71 – 100%) | N/A | 96.1% |
| 6. Median days from isolate receipt (recovery) at PHL to serotype result | 3.0 days (1 – 5 days) | 3.6 days (0 – 6 days) | N/A | 3.1 days |
| 7. Percent of primary isolates with PFGE information | 96.8% (86 – 100%) | 96.9% (84 – 100%) | 83.5% (0 – 100%) | 96.6% |
| 8a. Median days from isolate receipt (recovery) at PHL to PulseNet upload | 4.9 days (2 – 10 days) | 4.5 days (2 – 8 days) | 2.9 days (1 – 4 days) | 4.8 days |
| 8b. Median days from isolate receipt (or recovery) to receipt at PFGE lab | 1.7 days (0 – 3) | 2.1 days (0 – 4 days) | 1.3 days (1 – 3 days) | 1.8 days |
| 9. Number of laboratory confirmed cases reported to epidemiology staff | 863.2 (437 – 1521) | 168.6 (36 – 246) | 17.2 (3 – 33) | 349.7 |
| 10a. Percent of cases with attempted interview | 99.3% (97 – 100%) | 99% (94 – 100%) | 98.7% (92 – 100%) | 99.2% |
| 10b. Median days from case report to interview attempt | 1.1 days (0 – 4 days) | 1.3 days (0 – 4 days) | 0.9 days (0 – 2 days) | 1.1 days |
| 10c. Percent of cases with complete demographic data | 91.8% (76 – 100%) | 92.4% (80 – 100%) | 96.2% (72 – 100%) | 92.0% |
| 10d. Percent of cases with exposure history | 85.8% (72 – 91%) | 91.5% (85 – 99%) | 92.8% (78 – 100%) | 86.8% |
| 10d-i. Percent of SSL cases with full shotgun or case exposure completed | 77.0% (27 – 89%) | 75.4% (29 – 89%) | 76.1% (0 – 100%) | 76.7% |
| 10e. Percent of cases with serotype information | 96.5% (92 – 100%) | 92.1% (71 – 100%) | N/A | 95.8% |
| 10f. Percent of cases with PFGE information | 92.5% (83 – 98%) | 90.5% (67 – 98%) | 77.2% (0 – 100%) | 91.9% |
| 10f-i. Percent of cases with PFGE with complete epi data | 79.3% (66 – 90%) | 81.1% (67 – 94%) | 76.2% (0 – 100%) | 79.5% |
| 10g. Reasons for not interviewing cases | ||||
| 10g-i. Lost to Follow-up: Number; Percent | 81.5 (36 – 196); 59.1% (8-85%) | 8.9 (1 – 26); 36.1% (50 – 88%) | 1.5 (0 – 5); 30.3% (0 – 71%) | 68.5; 54.9% |
| 10g-ii. Refused: Number; Percent | 18.4 (3 – 45); 13.5% (2 – 45%) | 2.9 (1 – 5); 17.4% (2 – 42%) | 0.7 (0 – 2); 22.3% (0 – 67%) | 15.6; 14.3% |
| 10g-iii. Time lag too long: Number(Percent) | 2.9 (0 – 17); 1.4% (0 – 7%) | 0.2 (0 – 1); 0.1% (0 – 5%) | 0 (0 – 0); 0% (0 – 0%) | 2.4; 1.3% |
| 10g-iv. Other: Number; Percent | 21.6 (3 – 57); 18.3% (0 – 40%) | 5.2 (1 – 19); 23.3% (0 – 50%) | 1.3 (1 – 2); 53% (29 – 100%) | 18.6; 19.7% |
| 11. Number of clusters | 64.2 (15 – 102) | 12.1 (2 – 26) | 1.8 (0 – 6) | 26.1 |
| 12a. Number; Percent of clusters with routine interview of cases | 56.5 (14 – 102); 87.0% (50 – 100%) | 11 (2 – 26); 92.2% (53- 100%) | 2.1(0 – 6); 75% (0 – 100%) | 23.2; 87.5% |
| 12b. Number; Percent of clusters with supplemental/targeted interviewing of cases | 15.0 (5 – 41); 26.8% (8 – 71%) | 4.7 (1 – 20); 36.6% (10 – 77%) | 0.7(0 – 2); 30.5% (0 – 100%) | 6.8; 28.4% |
| 12c. Number; Percent of clusters where an analytic epidemiologic study conducted (>10 Salmonella or STEC cases, >5 Listeria cases) | 2.1 (0 – 8); 3.6% (0 – 8%) | 1.3 (0 – 6); 6.7% (0 – 23%) | 0.1 (0 – 1); 2.4% (0 – 17%) | 1.2; 4.0% |
| 13. Number; Percent of clusters with suspect vehicle/source identified | 5.2(0 – 11); 9.7% (0 – 39%) | 2.2 (0 – 10); 22.2% (0 – 100%) | 0.4 (0 – 1); 16.7% (0 – 50%) | 2.6; 11.8% |
| 14. Number; Percent of clusters with confirmed vehicle/source identified | 5.5 (0 – 12); 8.5% (0 – 20%) | 1.8 (0 – 9); 11.4% (0 – 35%) | 0.1 (0 – 1); 2.4% (0 – 17%) | 2.5; 8.8% |
| 15. Number; Percent of clusters with identified vehicle/source with: | ||||
| a. Exclusion of ill person(s) | 1.9 (0 – 8); 7.9% (0 – 39%) | 3.4 (0 – 15); 35.3% (0 – 79%) | 0 (0 – 0); 0% (0 – 0%) | 1.8; 12.0% |
| b. Remediation or closure | 2.8 (1 – 11); 13.9% (1 – 50%) | 3.1 (0 – 10); 26.4% (0 – 53%) | 1 (0 – 2); 50% (0 – 100%) | 2.3; 16.7% |
| c. Educational campaign | 2.1 (0 – 5); 21.3% (0 – 71%) | 1.7 (0 – 8); 16.3% (0 – 50%) | 0 (0 – 0); 0% (0 – 0%) | 1.3; 20.0% |
| d. Media/public messaging | 3.1 (1 – 7); 21.9% (10 – 86%) | 1.4 (0 – 5); 23.4% (0 – 50%) | 1 (0 – 2); 50% (0 – 100%) | 1.8; 22.8% |
| e. Regulatory action (recall, hold) | 3.6 (2 – 6); 21.6% (5 – 36%) | 1.0 (0 – 3); 16.3% (0 – 50%) | 1 (0 – 2); 50% (0 – 100%) | 1.9; 21.4% |
| 16. Number; Percent of clusters linked to a restaurant/food establishment with EHA | 5.3 (0 – 13); 38.5% (0 – 100%) | 2.6 (0 – 9); 41.3% (0 – 100%) | 0.1 (0 – 1); 7.1% (0 – 50%) | 2.7; 38.2% |
| 17. Number; Percent of clusters with food/environmental sample collected for testing | 3.9 (1 – 9); 7.0% (1 – 14%) | 1.2 (0 – 3); 15.8% (0 – 50%) | 0.3 (0 – 1); 14.3% (0 – 50%) | 1.8; 8.5% |
| 18. Number; Percent of clusters where EH, Ag, regulatory, or food safety program staff contacted | 17.3 (2 – 93); 24.1% (9 – 100%) | 3.3 (1 – 9); 35.0% (10 – 100%) | 0.9 (0 – 2); 40.4% (0 – 100%) | 7.2; 26.1% |
| 19. Number; Percent of outbreaks with NORS form completed | 17.8 (3 – 93); 75.6% (6 – 100%) | 3.9 (1 – 9); 85.1% (6 – 100%) | 1.3 (1 – 2); 77.7% (33 – 100%) | 7.7; 77.1% |
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Page last reviewed: April 12, 2019