2018 Cumulative Metrics Data: Salmonella, Shiga Toxin-Producing Escherichia coli, Listeria, Shigella, and Campylobacter [SSL(SC)]

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Data Report Period: January 1, 2018 to December 31, 2018

Table showing 2018 cumulative metrics data
Performance Metrics: (See metrics page for complete language and definitions) Salmonella Measures Mean (Range) STEC1 Measures Mean (Range) Listeria Measures Mean (Range) Shigella Measures2 Mean (Range) Campylobacter Measures2 Mean (Range)
1a. Total number of SSL(SC) isolates and isolate-yielding specimens submitted to or recovered at the Public Health Lab (PHL) 1,348  (55 – 6,844) 215 (17 – 1,061) 21 (0 –101) 172 (2 – 913) 154 (1 – 652)
1b. Number of SSL(SC) primary isolates or isolate-yielding specimens 1,264 (52 – 6,827) 190 (2 – 1,022) 20 (0 – 97) 144 (2 – 913) 126 (0 – 603)
2a. Total number of preliminary positive STEC clinical specimens or samples received at PHL (regardless of if isolate-yielding or not) N/A 356 (12 – 2,034) N/A N/A N/A
2b. Total number and percent of isolate-yielding STEC clinical specimens or samples received at PHL N/A 168 (2 – 1,022); 51.6% (9.1% – 100%) N/A N/A N/A
3a. Percent of SSL(SC) primary isolates with PFGE testing at PHL 96.9% (69.6% – 100%) 93.5% (37.9% – 100%) 42.4% (0% – 100%) 65.4% (0% – 100%) 36.8% (0% – 100%)
3b. OPTIONAL: Percent of SSL(SC) primary isolates with WGS testing at PHL 72.7% (18.2% –100%) 86.3% (31.3% – 100%) 98.6% (83.3% – 100%) 33.5% (0% – 100%) 34.6% (0% – 100%)
4a. Median time from SSL(SC) isolate receipt (or recovery) at PHL or PFGE request to pattern upload to PulseNet 4.1  (2 – 11) days 4.3 (2 – 20.5) days 5.4 (0 – 30) days 5.3 (2 – 16) days 9.0 (2 – 42) days
4b. OPTIONAL: Median time from SSL(SC) isolate receipt (or recovery) at PHL or WGS request to sequence upload to PulseNet 16.8 (7 – 41) days 12.9 (5 – 34) days 5.9 (3 – 8) days 18.3 (2-16) days 13.9 (8-19) days
5a. Total number of SSL(SC) cases reported to public health 1,461  (51 – 7,562) 369 (22 – 2,424) 20 (1 – 87) 408 (3 – 3,424) 1,638 (133 – 9,267)
5ai. OPTIONAL: Percent of SSL(SC) cases with isolates and isolate- yielding specimens submitted to PHL 82.5% (55.0% – 96.4%) 62.6% (18.7% – 100%) 87.1% (67.0% – 125%) 57.1% (8.3% – 100%) 33.5% (<1.0% – 91.1%)
5b. Total number of laboratory confirmed SSL(SC) cases reported to epidemiology staff 1,177 (49 – 6,248) 162 (7 – 1,167) 19 (0 – 87) 224 (3 – 1,312) 784 (73 – 4,445)
5c. Total number of probable SSL(SC) cases reported to epidemiology staff 189.4 (2 – 1,428) 186 (3 –1,120) N/A 127 (0 – 762) 748 (22 – 3,329)
5d. Total number of suspect SSL(SC) cases reported to epidemiology staff N/A 19.6 (0 – 137) N/A N/A N/A
6a. Percent of SSL(SC) cases with attempted interview 91.0% (53.2% – 100%) 95.8% (80.5% – 100%) 96.9% (83.3% – 100%) 83.0% (11.9% – 100%) 82.1% (0% – 100%)
6ai. Percent of laboratory confirmed cases with attempted interview 91.6% (53.8% – 100%) 97.0% (76.7% – 100%) 97.3% (83.3% – 100%) 83.4% (13.8% – 100%) 83.9% (0% – 100%)
6aii. Percent of probable cases with attempted interview 90.1% (45.6% – 100%) 96.0% (86.4% – 100%) N/A 83.1% (10.0% – 100%) 82.6% (0% – 100%)
6aiii. Percent of suspect cases with attempted interview N/A 83.4% (41.7% – 100%) N/A N/A N/A
6b. Median time from SSL(SC) case report to initial interview attempt 2.0 (<1 – 7) days 2.1(<1 – 20) days 2.1 (<1 – 9) days 2.0 (<1 – 5) days 2.2 (<1 – 5) days
6c. Percent of SSL(SC) cases with exposure history obtained 79.8% (42.5% – 99%) 84.3% (46.9% – 100%) 82.5% (50.0% – 100%) 77.2% (15.3% – 100%) 77.9% (35.9% – 100%)
6ci. OPTIONAL: Among SSL(SC) cases with an exposure history, percent with full shotgun or case exposure completed 73.3% (3.6% – 100%) 75.0% (1.8% – 100%) 88.9% (41.8% – 100%) 78.5% (0% – 100%) 73.1% (0% – 100%)
6cii. OPTIONAL: Time from case report to when an exposure history is obtained. 4.1 (2 – 10) days 4.4 (1-14) days 4.3 (1-11) days 5.0 (1-20) days 4.8 (3 -12) days
7. Number of SSL(SC) clusters 40.4 (4– 181) 7.3 (0 –50) 2.7 (0 – 27) 3.4 (0 – 20) 2.9 (0 -20)
8a. OPTIONAL: Total number and percent of SSL(SC) clusters with routine interview of cases3 37.3 (4 – 165); 96.6% (81.0% – 100%) 7.8 (1 – 45); 99.5% (90.0% – 100%) 3.8 (1 – 21); 98.6% (77.8% – 100%) 3.9 (1 – 14); 98.1% (75.0% – 100%) 4 (1 – 20); 100% (100% – 100%)
8b.Total number and percent of SSL(SC) clusters where an analytic epidemiologic study was conducted3 11.3 (0 – 47); 36.6% (0% – 100%) 2 (0 –9); 35.1% (0% – 100%) 0.9 (0 –5); 37.9% (0% – 100%) 0.7(0 – 6); 15.3% (0% – 100%) 0.4 (0 – 2); 17.1% (0% – 100%)
9a. Total number and percent of SSL(SC) clusters with confirmed vehicle/source identified3 9.6 (1 – 239); 32.4% (3.7% – 100%) 1.5 (0 – 5); 38.0% (0% – 100%) 0.4 (0 –1); 21.4% (0% – 100%) 0.7 (0 – 6); 18.3% (0% – 100%) 0.4(0 – 2); 12.1% (0% – 100%)
9b. Total number and percent of SSL(SC) clusters with suspect vehicle/source identified3 5.9 (1-12); 17.7% (5.0%-36.0%) 1.4(0-6); 22.0% (0%-100%) 0.7(0-3); 29.6%(0%-100%) 0.6 (0-4); 14.6%(0%-100%) 0.3(0-1); 20.8% (0% – 100%)
10. Total number and percent of SSL(SC) clusters where food or environmental sample collected for testing3 4.7 (0 – 19); 16.8% (0% – 80.0%) 1 (0 – 5); 17.8% (0% – 100%) 0.9 (0 – 6); 20.8% (0% – 100%) 0.2 (0 – 3); 1.1% (0% – 15.0%) 0.1 (0 – 1); 1.1% (0% – 17.0%)
11. Total number and percent of SSL(SC) clusters where environmental health, agriculture, regulatory, or food safety program staff were contacted3 18.8 (0 – 159); 41.3% (0% – 100%) 4.9 (0 – 45); 63.3% (0% – 100%) 2.8 (0 – 241); 57.7% (0% – 100%) 1.6 (0 – 6); 41.7% (0% – 100%) 0.5 (0 – 1); 29.5% (0% – 100%)
12a.Total number of SSL(SC) outbreaks, excluding multi-state outbreaks 12.3 (0-133) 2.8 (0-43) No Cumulative Data Available 2.2 (0-18) 2.4 (0 – 20)
12b.Total number and percent of SSL(SC) outbreaks, excluding multi-state outbreaks, reported/submitted to NORS 6.4 (1 – 41): 75.5% (4.5% – 100%) 2.3 (0 – 9); 87.8% (0% – 100%) No Cumulative Data Available 3.9 (0 – 14); 82.7% (0% – 100%) 2.9 (0 – 19); 62.7% (0% – 100%)

All data are cumulative. Data are only reported when available from 5 or more sites.

  1. Shiga Toxin-producing Escherichia coli
  2. Reporting is optional for Shigella and Campylobacter
  3. This metric is calculated for only those sites that reported having clusters in Metric 7.

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Page last reviewed: June 4, 2019
Content source: Centers for Disease Control and Prevention, National Center for Emerging and Zoonotic Infectious Diseases (NCEZID), Division of Foodborne, Waterborne, and Environmental Diseases (DFWED)