CDC FoodCORE Year One Cumulative Metrics Data – Salmonella, Shiga Toxin-producing Escherichia coli, and Listeria (SSL)
Report Period: October 1, 2010 to September 30, 2011
| Performance Metrics: (See the SSL Metrics web page for current language and definitions) |
Salmonella Measures Mean (Range) |
STEC Measures Mean (Range) |
Listeria Measures Mean (Range) |
|---|---|---|---|
| 1a. Total number of isolates and isolate-yielding specimens | 1181 (394 – 2066) | 131 (15 – 284) | 13 (5 – 28) |
| 1b. Number of primary isolates/isolate-yielding specimens | 1097 (366 – 1804) | 112 (15 – 272) | 12 (5 – 26) |
| 2a. Total number of STEC clinical specimens or samples received at PHL | N/A | 238 (73 – 693) | N/A |
| 2b. Number; Percent isolate-yielding STEC specimens or samples | N/A | No cumulative data available1 | N/A |
| 3. Median days from isolation /isolate-yielding specimen collection to receipt at PHL | 7 days (5 – 10 days) | 5 days (3 – 8 days) | 7 days (4 – 10 days) |
| 4. Median days from receipt of isolate-yielding specimens at PHL to recovery of isolate | 2 days (1 – 3 days) | 3 days (1 – 5 days) | 3 days (1 – 4 days) |
| 5. Percent of primary isolates with serotype information | 99% (93 – 100%) | 88% (66 – 100%) | N/A |
| 6. Median days from isolate receipt (or recovery) at PHL to serotype result | 6 days (3 – 8 days) | 11 days (1 – 42 days) | N/A |
| 7. Percent of primary isolates with PFGE information | 92% (52 – 100%) | 98% (90 – 100%) | 100% (100 – 100%) |
| 8. Median days from isolate receipt (or recovery) at PHL to PFGE upload to PulseNet | 7 days (2 – 20 days) | 5 days (2 – 9 days) | 4 days (2 – 10 days) |
| 9. Number of laboratory confirmed cases reported to epidemiology staff | 1006 (285 – 1818) | 117 (11 – 271) | 13 (5 – 27) |
| 10a. Percent of cases with attempted interview | 93% (71 – 100%) | 97% (89 – 100%) | 97% (83 – 100%) |
| 10b. Median days from case report to interview attempt | 0.6 days (0 – 2 days) | 1 days (0 – 2 days) | 1 days (0 – 2 days) |
| 10c. Percent of cases with complete demographic data | 87% (71 – 100%) | 87% (64 – 100%) | 91% (80 – 100%) |
| 10d. Percent of cases with exposure history | 72% (36 – 89%) | 77% (64 – 86%) | 84% (67 – 100%) |
| 10d-i. Percent of SSL cases with full shotgun or case exposure completed | No cumulative data available1 | No cumulative data available1 | No cumulative data available1 |
| 10e. Percent of cases with serotype information | 95% (88 – 100%) | 73% (52 – 100%) | N/A |
| 10f. Percent of cases with PFGE information | 85% (42 – 100%) | 87% (55 – 100%) | 92% (80 – 100%) |
| 10f-i. Percent of cases with PFGE with complete epi data | 58% (34 – 82%) | 66% (37 – 90%) | 59% (0 – 79%) |
| 10g. Reasons for not interviewing cases | |||
| 10g-i. Lost to Follow-up: Number; Percent | 38 (4 – 85); 7% (2 – 15%) | 2 (0 – 5); 6% (0 – 13%) | 0.5 (0 – 1); 11% (0 – 33%) |
| 10g-ii. Refused: Number; Percent | 16 (0 – 24); 8% (0 – 13%) | 2 (0 – 6); 5% (0 – 16%) | 0 (0 – 0); 0% (0 – 0%) |
| 10g-iii. Time lag too long: Number(Percent) | No cumulative data available1 | 5 (0 – 14); 9% (0 – 25%) | 0.3 (0 – 1); 3% (0 – 11%) |
| 10g-iv. Other: Number; Percent | 136 (117 – 172); 54% (7 – 86%) | 11 (0 – 26); 23% (0 – 68%) | 1 (0 – 2); 44% (0 – 100%) |
| 11. Number of clusters | 64 (16 – 99) | 8 (0 – 30) | 0.7 (0 – 2) |
| 11a. Median and range of cluster size(primary cases only) | No cumulative data available1 | No cumulative data available1 | No cumulative data available1 |
| 12. Number; Percent of clusters with cases in multiple states | 35 (13 – 72); 50% (15 – 73%) | 3 (0 – 9); 34% (0 – 100%) | 1 (0 – 2); 67% (0 – 100%) |
| 13a. Number; Percent of clusters with routine interview of cases | 69 (34 – 98); 96% (86 – 100%) | 9 (2 – 30); 100% (100 – 100%) | 2 (1 – 2); 100% (100 – 100%) |
| 13b. Number; Percent of clusters with supplemental/targeted interviewing of cases | 17 (3 – 45); 27% (11 – 64%) | 5 (0 – 12); 48% (0 – 100%) | No cumulative data available1 |
| 13c. Number; Percent of clusters where an analytic epidemiologic study conducted (>10 Salmonella cases) | 9 (0 – 44); 33% (0 – 100%) | 0.5 (0 – 2); 25% (0 – 100%) | 0.7 (0 – 2); 33% (0 – 100%) |
| 13d. Median duration ( in days) of epidemiologic investigation, from cluster notification to end of investigation/close-out | 26 days (18 – 30) | No cumulative data available1 | No cumulative data available1 |
| 14. Number; Percent of clusters with suspect vehicle/source identified | 11 (3 – 44); 16% (4 – 45%) | 2 (0 – 5); 36% (0 – 100%) | 0.7 (0 – 2); 33% (0 – 100%) |
| 15. Number; Percent of clusters with confirmed vehicle/source identified | 4 (1 – 9); 6% (1 – 13%) | 2 (0 – 5); 27% (0 – 100%) | 1 (0 – 2); 67% (0 – 100%) |
| 16a. Number; Percent of clusters with identified vehicle/source with control measure taken | 12 (0 – 44); 29% (0 – 63%) | 3 (0 – 7); 63% (0 – 100%) | No cumulative data available1 |
| 16b. Number; Percent of clusters with identified vehicle/source with public health action taken | 9 (0 – 44); 22% (0 – 50%) | 2 (1 – 4); 54% (33 – 100%) | 1 (0 – 2); 67% (0 – 100%) |
| 17. Number; Percent of clusters linked to a restaurant/food establishment with EHA | 2 (0 – 4); 15% (0 – 80%) | 0.7 (0 – 3); 20% (0 – 100%) | 0 (0 – 0); 0% (0 – 0%) |
| 18. Number; Percent of clusters with food/environmental sample collected for testing | 2 (0 – 7); 3% (0 – 9%) | 2 (0 – 5); 9% (0 – 36%) | 1 (0 – 2); 67% (0 – 100%) |
| 19. Number; Percent of clusters where EH, Ag, regulatory, or food safety program staff contacted | 23 (0 – 86); 35% (0 – 100%) | 11 (0 – 50); 36% (0 – 100%) | 1 (0 – 2); 67% (0 – 100%) |
| 20. Number; Percent of outbreaks with NORS form completed | 12 (1 – 48); 37% (3 – 94%) | 4 (1 – 9); 55% (24 – 100%) | No cumulative data available1 |
| 20a. Number; Percent of outbreaks with supplemental form completed | No cumulative data available1 | No cumulative data available1 | No cumulative data available1 |
1Cumulative data for this metric were not reported from 3 or more centers