CDC FoodCORE Year Eight Cumulative Metrics – Salmonella, Shiga Toxin-producing Escherichia coli, and Listeria (SSL)
Data Report Period: January 1, 2018 to December 31, 2018
Ten state and local health departments participate in FoodCORE. Data are only reported when available from three or more centers; ‘n’ indicates the number of centers reporting each metric. All data are cumulative.
| Performance Metrics: (See FoodCORE website for complete language and definitions) |
Salmonella Mean (Range) | STEC Mean (Range) | Listeria Mean (Range) | Shigella Mean (Range) | Campylobacter Mean (Range) |
|---|---|---|---|---|---|
| 1a. Total number of isolates and isolate-yielding specimens | 1082 (398–1661) n=10 |
239 (79–453) n=10 |
22 (2–51) n=10 |
182 (33–665) n=9 |
475 (70–1287) n=8 |
| 1b. Number of primary isolates/isolate-yielding specimens | 960 (368–1514) n=10 |
219 (46–431) n=10 |
21 (2–49) n=10 |
173 (33–609) n=9 |
461 (70–1246) n=8 |
| 2a. Total number of preliminary positive clinical specimens | 902 (446–1593) n=9 |
445 (171–922) n=10 |
n/a | 194 (63–397) n=8 |
581 (74–1568) n=7 |
| 2b. Number; Percent isolate-yielding preliminary positive clinical specimens | 762 (398–1514)
86% (53%–96%) |
226 (78–430)
52% (22%–73%) |
n/a | 102 (26–187)
52% (29%–82%) |
402 (64–1002)
74% (53%–98%) |
| 3. Median days from isolation/isolate-yielding specimen collection to receipt at PHL | 4 (3–7) n=10 |
3 (2–6) n=10 |
4 (1–6) n=10 |
4 (2–8) n=9 |
4 (3–5) n=8 |
| 4. Median days from receipt of isolate-yielding specimens at PHL to recovery of isolate | 2 (0–4)
n=9 |
4 (2–6)
n=9 |
2 (0–3)
n=8 |
3 (0–5)
n=8 |
2 (0–5)
n=7 |
| 5. Percent of primary isolates with serotype information | 99% (95%–100%) n=10 |
79% (63%–100%) n=10 |
n/a | 100% (98%–100%) n=9 |
77% (7%–100%) n=4 |
| 6. Median days from isolate receipt (or recovery) to serotype result | 4 (2–7) n=10 |
3 (1–6) n=10 |
n/a | 3 (1–5) n=9 |
3 (1–5) n=5 |
| 7a. Percent of primary isolates with PFGE information | 99% (97%–100%) n=10 |
98% (86%–100%) n=10 |
26% (0–100%)* n=4 |
56% (0%–100%) n=9 |
32% (0%–100%)* n=8 |
| 7b. Percent of primary isolates with WGS information | 91% (24%–100%) n=10 |
93% (43%–100%) n=10 |
100% (100%–100%) n=10 |
40% (0%–100%) n=9 |
58% (0%–97%) n=8 |
| 8a. Median days from isolate receipt (or recovery) to PFGE upload to PulseNet | 4 (2–8) n=10 |
5 (2–10) n=10 |
2 (0–4)* n=3 |
10 (4–33) n=7 |
7 (0–17)* n=5 |
| 8b. Median days from isolate receipt (or recovery) to WGS sequence being shared | 12 (7–19) n=8 |
15 (7–25) n=8 |
8 (6–13) n=10 |
14 (6–30) n=7 |
14 (7–21) n=7 |
| 8c. Median days from isolate receipt (or recovery) at PFGE lab to upload to PulseNet | 3 (1–7) n=10 |
3 (1–8) n=10 |
2 (0–4)* n=3 |
6 (2–18) n=7 |
3 (0–6)* n=5 |
| 8d. Median days from isolate receipt (or recovery) at WGS lab to upload to sequence being shared | 9 (3–16) n=8 |
11 (3–22) n=8 |
7 (4–11) n=10 |
12 (3–30) n=7 |
8 (3–12) n=7 |
| 9a. Number of reported laboratory confirmed cases | 880 (339–1446) n=10 |
204 (53–385) n=10 |
16 (2–36) n=10 |
189 (36–637) n=9 |
888 (340–1938) n=9 |
| 9b. Number of reported probable cases | 97 (20–161) n=10 |
167 (59–349) n=10 |
n/a | 137 (25–348) n=8 |
525 (184–1429) n=8 |
| 9c. Number of reported suspect cases | 2 (0–17) n=9 |
6 (0–30) n=10 |
n/a | 1 (0–4) n=7 |
n/a |
| 10a.1 Percent of confirmed cases with attempted interview | 98% (89%–100%) n=10 |
94% (69%–100%) n=10 |
97% (83%–100%) n=10 |
84% (0%–100%) n=9 |
74% (0%–100%) n=9 |
| 10a.2 Percent of probable/suspect cases with attempted interview | 96% (77%–100%) n=10 |
95% (73%–100%) n=10 |
n/a | 81% (4%–100%) n=8 |
84% (12%–100%) n=8 |
| 10b.1 Median days from confirmed case report to interview attempt | 1 (0–3) n=9 |
1 (0–4) n=9 |
2 (0–5) n=9 |
1 (0–4) n=8 |
3 (0–8) n=8 |
| 10b.2 Median days from probable/suspect case report to interview attempt | 1 (0–3) n=9 |
1 (0–4) n=9 |
n/a | 1 (0–2) n=8 |
3 (0–13) n=8 |
| 10c.1 Median days from confirmed case report to completed interview | 3 (1–7) n=10 |
3 (1–6) n=10 |
4 (1–12) n=10 |
3 (1–6) n=9 |
4 (1–11) n=9 |
| 10c.2 Median days from probable/suspect case report to completed interview | 2 (1–7) n=10 |
3 (1–8) n=10 |
n/a | 15 (0–123) n=9 |
5 (1–17) n=8 |
| 10d. Percent of confirmed cases with complete demographic data | 93% (81%–100%) n=10 |
93% (77%–100%) n=10 |
97% (88%–100%) n=10 |
90% (69%–98%) n=9 |
76% (0%–99%) n=9 |
| 10e. Percent of confirmed cases with exposure history | 86% (79%–100%) n=10 |
92% (85%–100%) n=10 |
89% (67%–100%) n=10 |
84% (71%–100%) n=9 |
86% (77%–100%) n=9 |
| 10e.1 Percent of confirmed cases with full exposure interview | 89% (81%–96%) n=9 |
88% (76%–99%) n=9 |
94% (64%–100%) n=9 |
78% (0%–100%) n=8 |
76% (0%–99%) n=7 |
| 10f. Percent of confirmed cases with serotype information | 96% (85%–99%) n=10 |
78% (20%–100%) n=10 |
n/a | 80% (0%–100%) n=9 |
n/a |
| 10g. Percent of confirmed cases with PFGE information | 93% (85%–99%) n=10 |
86% (21%–100%) n=10 |
14% (0%–100%)* n=7 |
43% (0%–91%) n=9 |
16% (0%–91%)* n=8 |
| 10g.1 Percent of confirmed cases with PFGE with complete epi data | 84% (76%–94%) n=10 |
84% (56%–100%) n=10 |
n/a* | 89% (69%–100%) n=6 |
69% (0%–100%)* n=5 |
| 10h. Reasons for not interviewing cases | |||||
| 10h.1 Number; Percent Lost to Follow-up | 102 (45–191)
24% (7%–71%) |
16 (2–30)
20% (4%–67%) |
1 (0–3)
6% (0%–18%) |
n/a | n/a |
| 10h.2 Number; Percent Refused interview | 27 (4–77)
7% (1%–29%) |
3 (1–4)
7% (1%–33%) |
1 (0–2)
7% (0%–33%) |
n/a | n/a |
| 10h.3 Number; Percent Lag time too long | 1 (0–2)
0% (0%–1%) |
1 (0–2)
3% (0%–22%) |
0 (0–1)
0% (0%–3%) |
n/a | n/a |
| 10h.4 Number; Percent Other | 20 (0–68)
3% (0%–8%) |
6 (0–30)
2% (0%–13%) |
1 (0–2)
19% (0%–100%) |
n/a | n/a |
| 11. Number of investigations | 71 (26–118) n=10 |
14 (1–29) n=10 |
2 (0–10) n=10 |
n/a | n/a |
| 12a. Number; Percent of investigations with routine interview of cases | 63 (16–116)
86% (32%–100%) |
12 (1–29)
80% (8%–100%) |
3 (0–10)
83% (0%–100%) |
n/a | n/a |
| 12b. Number; Percent of investigations with supplemental/targeted interviewing of cases | 17 (1–38)
29% (1%–76%) |
17 (0–100)
43% (0%–100%) |
1 (0–3)
47% (0%–100%) |
n/a | n/a |
| 12c. Number; Percent of investigations where an analytic epidemiologic study conducted | 3 (0–12)
6% (0%–23%) |
4 (0–25)
13% (0%–60%) |
0 (0–1)
2% (0%–10%) |
n/a | n/a |
| 13. Number; Percent of investigations with suspect vehicle/source identified | 5 (0–24)
9% (0%–27%) |
4 (0–13)
17% (0%–60%) |
0 (0–1)
25% (0%–100%) |
n/a | n/a |
| 14. Number; Percent of investigations with confirmed vehicle/source identified | 10 (0–24)
16% (0%–46%) |
2 (0–7)
18% (0%–50%) |
0 (0–0)
0% (0%–0%) |
n/a | n/a |
| 15. Number; Percent of investigations with source identified with: | |||||
| a. Exclusion of ill person(s) | 4 (0–19)
5% (0%–16%) |
4 (0–25)
17% (0%–100%) |
0 (0–0)
0% (0%–0%) |
n/a | n/a |
| b. Remediation or closure | 2 (0–8)
4% (0%–13%) |
1 (0–5)
8% (0%–25%) |
0 (0–0)
0% (0%–0%) |
n/a | n/a |
| c. Educational campaign | 1 (0–3)
2% (0%–7%) |
1 (0–6)
10% (0%–60%) |
0 (0–0)
0% (0%–0%) |
n/a | n/a |
| d. Media/public messaging | 6 (0–13)
9% (0%–29%) |
2 (0–3)
22% (0%–60%) |
0 (0–0)
0% (0%–0%) |
n/a | n/a |
| e. Regulatory action (recall, hold) | 4 (0–9)
5% (0%–13%) |
1 (0–3)
14% (0%–50%) |
0 (0–0)
0% (0%–0%) |
n/a | n/a |
| 16. Number; Percent of investigations linked to a restaurant/food establishment with EHA | 5 (1–13)
35% (1%–100%) |
3 (0–7)
48% (0%–100%) |
0 (0–1)
17% (0%–100%) |
n/a | n/a |
| 17. Number; Percent of investigations with food/environmental sample collected for testing | 6 (1–22)
11% (1%–49%) |
2 (0–4)
12% (0%–40%) |
0 (0–1)
25% (0%–100%) |
n/a | n/a |
| 18. Number; Percent of investigations where environmental health partners were contacted | 12 (1–27)
19% (1%–60%) |
4 (1–9)
41% (12%–100%) |
1 (0–3)
30% (0%–100%) |
n/a | n/a |
| 19. Number; Percent of outbreaks with NORS form completed | 13 (1–32)
82% (11%–100%) |
4 (0–11)
78% (0%–100%) |
0 (0–1)
17% (0%–100%) |
n/a | n/a |
*CDC PulseNet fully implemented whole genome sequencing (WGS) to replace pulsed-field gel electrophoresis (PFGE) testing as the national, primary subtyping method for Listeria monocytogenes and Campylobacter jejuni/coli on January 15, 2018 and March 15, 2018, respectively. CDC is quickly expanding the use of WGS to state laboratories and scientists will soon be using WGS for other enteric pathogens, such as Shiga toxin-producing Escherichia coli (STEC), Shigella, and Salmonella. FoodCORE centers discontinued reporting of PFGE metrics for Listeria and Campylobacter starting in Year 8 of the program and will discontinue reporting of PFGE metrics for other enteric pathogens in the future.