CDC OutbreakNet Enhanced 2022 Cumulative Metrics Data: Salmonella, Shiga Toxin–producing Escherichia coli, Listeria, Shigella, and Campylobacter [SSL(SC)]
Report Period: January 1, 2022 to December 31, 2022
| SSL(SC) Performance Metrics: (See associated document 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) | 1195 (57 – 5,333) | 186 (5 – 443) | 23 (0 – 59) | 76 (3 – 254) | 140 (0 – 1,056) |
| 1b. Number of SSL(SC) primary isolates or isolate-yielding specimens | 1064 (52 – 5,333) | 168 (5 – 726) | 20 (0 – 59) | 96 (1 – 859) | 153 (0 – 1,939) |
| 2a. Total number of preliminary positive SSL(SC) clinical specimens or samples received at PHL (regardless of if isolate-yielding or not) | 472 (4 – 1,459) | 349 (1 – 1,202) | 7 (0 – 45) | 75 (0 – 373) | 95 (0 – 787) |
| 2b. Total number and percent of isolate-yielding SSL(SC) clinical specimens or samples received at PHL | 378 (1 – 1,409); 78% (22% – 100%) | 147 (0 – 496); 44% (0% – 100%) | 10 (0 – 45); 91% (0% – 100%) | 36% (0 – 151); 50% (6% – 100%) | 60 (0 – 309); 62% (0% – 100%) |
| 3b. Percent of SSL(SC) primary isolates with WGS testing at PHL | 93% (62% – 100%) | 87% (7% – 100%) | 88% (0% – 100%) | 63% (0% – 100%) | 52% (0% – 100%) |
| 4a. Time from SSL(SC) isolate receipt (or recovery) or WGS request at PHL to sequence upload to PulseNet4 | 8 (4 – 30) days | 8 ( 4 – 25) days | 6 (3 – 18) days | 8 (0 – 22) days | 6 (0 – 22) days |
| 5a. Total number of SSL(SC) cases reported to public health | 1,324 (6 – 7,053) | 366 (12 – 2,446) | 22 (1 – 72) | 385 (7 – 3,767) | 1,688 (140 – 9,074) |
| 5ai. OPTIONAL: Percent of SSL(SC) cases with isolates and isolate- yielding specimens submitted to PHL | 82% (69% – 94.6%) | 71% (37% – 98%) | 80% (0% – 100%) | 54% (0.1% – 92%) | 33% (0% – 69%) |
| 5b. Total number of laboratory confirmed SSL(SC) cases reported to epidemiology staff | 1068 (6 – 5,869) | 144 (6 – 997) | 20 (0 – 70) | 177 (3 – 1,924) | 648 (85 – 5,610) |
| 5c. Total number of probable SSL(SC) cases reported to epidemiology staff | 255 (4 – 1,261) | 223 (6 – 1,354) | 2 (0 – 7) | 216 (4 – 1,843) | 1,038 (44 – 3,464) |
| 5d. Total number of suspect SSL(SC) cases reported to epidemiology staff | N/A | 27 (0 – 102) | 0.4 (0 – 3) | N/A | N/A |
| 6a. Percent of SSL(SC) cases with attempted interview | 90% (29% – 100%) | 95% (82% – 100%) | 94% (11% – 100%) | 87% (14% – 100%) | 81% (10% – 100%) |
| 6ai. Percent of laboratory confirmed cases with attempted interview | 90% (27% – 100%) | 96% (83% – 100%) | 94% (11% – 100%) | 87% (31% – 100%) | 83% (8% – 100%) |
| 6aii. Percent of probable cases with attempted interview | 92% (35% – 100%) | 96% (86% – 100%) | N/A | 86% (0% – 100%) | 78% (8% – 100%) |
| 6aiii. Percent of suspect cases with attempted interview | N/A | 84% (0% – 100%) | N/A | N/A | N/A |
| 6b. Median time from SSL(SC) case report to initial interview attempt | 2.5 (<0 – 18) days | 2 (<1 – 17) days | 1 (<0 – 6) days | 2 (<0 – 9) days | 3 (<1 – 13) days |
| 6c. Percent of SSL(SC) cases with exposure history obtained | 77% (47% – 100%) | 78% (41% – 100%) | 81% (20% – 100%) | 81% (54% – 100%) | 72% (41% – 100%) |
| 6ci. OPTIONAL: Among SSL(SC) cases with an exposure history, percent with full shotgun or case exposure completed | 69% (14% – 100%) | 78% (15% – 100%) | 74% (0% – 100%) | 62% (0% – 100%) | 63% (0% – 100%) |
| 6cii. OPTIONAL: Time from case report to when an exposure history is obtained. | 4 (1 – 18) days | 3 (1 – 18) days | 3 (1 – 10) days | 2 (1 – 6) days | 3 (1 – 12) days |
| 7. Number of SSL(SC) clusters | 33 (2 – 104) | 7 (0 – 37) | 2 (0 – 12) | 3 (0 – 17) | 1 (0 – 8) |
| 8a. OPTIONAL: Total number and percent of SSL(SC) clusters with routine interview of cases3 | 24 (2 – 77); 97% (82% – 100%) | 7 (1 – 28); 99% (93% – 100%) | 3 (0 – 9); 89% (0% – 100%) | 3 (0 – 6); 88% (0% – 100%) | 2 (1 – 4); 100% |
| 8b.Total number and percent of SSL(SC) clusters where an analytic epidemiologic study was conducted3 | 8 (0 – 56); 37% (0% – 100%) | 2 (0 – 10); 39% (0% – 100%) | 0.7 (0 – 4); 37% (0% – 100%) | 0.8 (0 – 6); 33% (0% – 100%) | 0.5 (0 – 2); 22% (0% – 100%) |
| 9a. Total number and percent of SSL(SC) clusters with confirmed vehicle/source identified3 | 6 (0 – 28); 21% (0% – 100%) | 0.9 (0 – 5); 11% (0% – 67%) | 0.8 (0 – 5); 27% (0% – 100%) | 0.1 (0 – 2); 0.8% (0% – 12%) | 0.5 (0 – 4); 15% (0% – 100%) |
| 9b. OPTIONAL: Total number and percent of SSL(SC) clusters with suspect vehicle/source identified3 | 5 (0 – 18); 18% (0% – 49%) | 2 (0 – 6); 33% (0% – 100%) | 0.7 (0 – 2); 27% (0% – 100%) | 0.8 (0 – 3); 36% (0% – 100%) | 0.8 (0 – 3); 34% (0% – 100%) |
| 10. Total number and percent of SSL(SC) clusters where food or environmental sample collected for testing3 | 4 (0 – 16); 18% (0% – 100%) | 0.4 (0 – 3); 2% (0% – 13%) | 1 (0 – 5); 43% (0% – 100%) | 0; 0% | 0.4 (0 – 2); 11% (0% – 50%) |
| 11. Total number and percent of SSL(SC) clusters where environmental health, agriculture, regulatory, or food safety program staff were contacted3 | 15 (0 – 85); 47% (0% – 100%) | 5 (0 – 29); 54% (0% – 100%) | 2 (0 – 12); 64% (0% – 100%) | 1 (0 – 7); 38% (0% – 100%) | 1.3 (0 – 4); 65.2% (0% – 100%) |
| 12a.Total number of SSL(SC) outbreaks, excluding multi-state outbreaks | 6 (0 – 57) | 2 (0 – 23) | 0.3 (0 – 8) | 0.6 (0 – 3) | 1 (0 – 7) |
| 12b.Total number and percent of SSL(SC) outbreaks, excluding multi-state outbreaks, reported/submitted to NORS | 3 (0 – 15); 82% (0% – 100%) | 2 (0 – 8); 79% (0% – 100%) | No cumulative data available | No cumulative data available | 1 (0 – 7); 78%(0% – 100%) |
All data are cumulative. Data are only reported when available from 5 or more sites.
1Shiga Toxin-producing Escherichia coli
2Reporting is optional for Shigella and Campylobacter
3This metric is calculated for only those sites that reported having clusters in Metric 7
4 This metric is reported through the Epidemiology and Laboratory Capacity for Infectious Disease (ELC) Cooperative Agreement Performance Measures
Version: 10/2023
Download Data