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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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