CDC FoodCORE Year Eleven Cumulative Metrics Data – Salmonella, Shiga Toxin-producing Escherichia coli (STEC), and Listeria (SSL) plus Shigella and Campylobacter
Data Report Period: January 1, 2021 to December 31, 2021
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.∗
| 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 | 875 (348–1413) n=10 |
224 (82–450) n=10 |
27 (3–76) n=10 |
89 (16–222) n=10 |
373 (24–1211) n=10 |
| 1b. Number of primary isolates/isolate-yielding specimens | 803 (305–1389) n=10 |
193 (49–422) n=10 |
24 (2–66) n=10 |
80 (16–212) n=10 |
363 (24–1174) n=10 |
| 2a. Total number of preliminary positive clinical specimens | 805 (362–1514) n=9 |
366 (122–875) n=10 |
n/a | 115 (33–291) n=9 |
499 (30–1590) n=9 |
| 2b. Number; Percent isolate-yielding preliminary positive clinical specimens | 714 (348–1413) 89% (79%–98%) n=9 |
185 (49–459) 51% (32%–80%) n=10 |
n/a | 57 (15–150) 50% (32%–79%) n=9 |
359 (19–1211) 72% (49%–100%) n=9 |
| 3. Median days from isolation/isolate-yielding specimen collection to receipt at PHL | 4 (3–7) n=10 |
3 (1–7) n=10 |
4 (2–9) n=10 |
3 (1–5) n=9 |
3 (2–4) n=9 |
| 4. Median days from receipt of isolate-yielding specimens at PHL to recovery of isolate | 3 (1–5) n=6 |
4 (2–6) n=6 |
1 (0–3) n=6 |
3 (1–4) n=6 |
3 (2–4) n=6 |
| 5. Percent of primary isolates with serotype information | 99% (93%–100%) n=10 |
81% (43%–100%) n=10 |
n/a | 99% (94%–100%) n=10 |
91% (49%–100%) n=8 |
| 6. Median days from isolate receipt (or recovery) to serotype result | 5 (1–12) n=10 |
4 (0–12) n=9 |
n/a | 4 (1–10) n=9 |
4 (1–12) n=8 |
| 7. Percent of primary isolates with WGS information | 97% (83%–100%) n=10 |
94% (62%–100%) n=10 |
98% (85%–100%) n=10 |
69% (0%–100%) n=10 |
77% (4%–100%) n=10 |
| 8a. Median days from isolate receipt (or recovery) to WGS sequence being shared | 7 (4–16) n=10 |
8 (4–17) n=10 |
7 (4–14) n=10 |
7 (3–9) n=8 |
7 (4–11) n=10 |
| 8b. Median days from isolate receipt (or recovery) at WGS lab to sequence being shared | 7 (3–11) n=10 |
7 (3–17) n=10 |
6 (3–10) n=10 |
6 (2–12) n=9 |
7 (3–11) n=10 |
| 9a. Number of reported laboratory confirmed cases | 712 (291–1321) n=10 |
169 (38–332) n=10 |
21 (2–63) n=10 |
80 (21–253) n=10 |
554 (338–1192) n=9 |
| 9b. Number of reported probable cases | 135 (30–311) n=10 |
173 (44–375) n=10 |
1 (0–3) n=10 |
110 (25–492) n=10 |
637 (200–1601) n=9 |
| 9c. Number of reported suspect cases | 1 (0–4) n=10 |
3 (0–12) n=10 |
1 (0–3) n=10 |
1 (0–3) n=10 |
n/a |
| 10a.1 Percent of confirmed cases with attempted interview | 99% (95%–100%) n=10 |
98% (91%–100%) n=10 |
98% (81%–100%) n=10 |
86% (5%–100%) n=10 |
80% (4%–100%) n=9 |
| 10a.2 Percent of probable/suspect cases with attempted interview | 98% (94%–100%) n=10 |
88% (19%–100%) n=10 |
71% (0%–100%) n=7 |
86% (2%–100%) n=9 |
79% (4%–100%) n=9 |
| 10b. Median days from confirmed/probable/suspect case report to interview attempt | 2 (0–6) n=10 |
2 (0–6) n=10 |
2 (0–5) n=10 |
2 (0–5) n=9 |
2 (1–6) n=9 |
| 10c. Median days from confirmed/probable/suspect case report to completed interview | 3 (0–9) n=10 |
3 (0–9) n=10 |
6 (0–33) n=10 |
3 (1–10) n=9 |
4 (1–12) n=9 |
| 10d. Percent of confirmed cases with complete demographic data | 94% (83%–99%) n=10 |
94% (85%–100%) n=10 |
92% (79%–100%) n=10 |
92% (75%–100%) n=9 |
86% (53%–98%) n=9 |
| 10e. Percent of confirmed cases with exposure history | 80% (64%–91%) n=10 |
86% (71%–96%) n=10 |
82% (45%–100%) n=10 |
75% (55%–96%) n=9 |
82% (42%–100%) n=9 |
| 10e.1 Percent of confirmed cases with full exposure interview | 82% (22%–99%) n=10 |
83% (37%–97%) n=10 |
77% (0%–100%) n=10 |
78% (0%–100%) n=9 |
76% (0%–98%) n=9 |
| 10f. Percent of confirmed cases with serotype information | 93% (80%–98%) n=10 |
84% (42%–100%) n=10 |
n/a | 70% (5%–100%) n=9 |
n/a |
| 10g. Percent of confirmed cases with WGS information | 92% (80%–98%) n=10 |
89% (59%–100%) n=10 |
91% (45%–100%) n=10 |
60% (0%–96%) n=9 |
36% (1%–85%) n=9 |
| 10g.1 Percent of confirmed cases with WGS with exposure history obtained | 85% (66%–100%) n=10 |
84% (69%–94%) n=10 |
81% (58%–100%) n=10 |
67% (0%–92%) n=9 |
80% (46%–100%) n=9 |
| 10h. Reasons for not interviewing cases |  |
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| 10h.1 Number; Percent Lost to Follow-up/Refused Interview | 146 (42–311) 20% (7%–30%) n=10 |
30 (5–89) 15% (7%–35%) n=10 |
4 (0–13) 19% (0%–36%) n=10 |
n/a | n/a |
| 10h.2 Number; Percent Lag Time Too Long | 2 (0–12) 0% (0%–1%) n=9 |
1 (0–4) 0% (0%–2%) n=9 |
0 (0–0) 0% (0%–0%) n=9 |
n/a | n/a |
| 10h.3 Number; Percent Other | 24 (0–159) 3% (0%–19%) n=9 |
3 (0–13) 1% (0%–8%) n=9 |
1 (0–3) 4% (0%–18%) n=9 |
n/a | n/a |
| 11. Number of investigations | 44 (14–80) n=10 |
10 (3–21) n=10 |
3 (0–10) n=10 |
n/a | n/a |
| 12a. Number; Percent of investigations with routine interview of cases | 41 (12–78) 92% (65%–100%) n=10 |
9 (3–21) 94% (75%–100%) n=10 |
3 (0–10) 80% (0%–100%) n=10 |
n/a | n/a |
| 12b. Number; Percent of investigations with supplemental/targeted interviewing of cases | 11 (3–19) 31% (10%–71%) n=10 |
3 (0–8) 29% (0%–67%) n=10 |
1 (0–3) 37% (0%–100%) n=10 |
n/a | n/a |
| 12c. Number; Percent of investigations where an analytic epidemiologic study conducted | 3 (0–11) 13% (0%–79%) n=10 |
1 (0–4) 11% (0%–40%) n=10 |
0 (0–3) 11% (0%–100%) n=10 |
n/a | n/a |
| 13. Number; Percent of investigations with suspect vehicle/source identified | 6 (1–15) 17% (3%–57%) n=10 |
2 (0–6) 24% (0%–50%) n=10 |
1 (0–7) 26% (0%–100%) n=10 |
n/a | n/a |
| 14. Number; Percent of investigations with confirmed vehicle/source identified | 7 (2–20) 16% (3%–35%) n=10 |
1 (0–6) 7% (0%–33%) n=10 |
1 (0–2) 24% (0%–100%) n=10 |
n/a | n/a |
| 15. Number; Percent of investigations with source identified with: | |
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| a. Exclusion of ill person(s) | 3 (0–13) 6% (0%–20%) n=10 |
1 (0–4) 13% (0%–44%) n=10 |
0 (0–0) 0% (0%–0%) n=10 |
n/a | n/a |
| b. Remediation or closure | 2 (0–9) 6% (0%–28%) n=10 |
0 (0–1) 2% (0%–10%) n=10 |
0 (0–1) 4% (0%–25%) n=10 |
n/a | n/a |
| c. Educational campaign | 2 (0–9) 6% (0%–26%) n=10 |
0 (0–3) 3% (0%–25%) n=10 |
0 (0–1) 4% (0%–25%) n=10 |
n/a | n/a |
| d. Media/public messaging | 4 (0–11) 11% (0%–32%) n=10 |
0 (0–1) 2% (0%–10%) n=10 |
1 (0–2) 10% (0%–33%) n=10 |
n/a | n/a |
| e. Regulatory action (recall, hold) | 3 (0–5) 8% (0%–21%) n=10 |
1 (0–4) 5% (0%–33%) n=10 |
0 (0–1) 7% (0%–33%) n=10 |
n/a | n/a |
| 16. Number; Percent of investigations linked to a restaurant/food establishment with EHA | 3 (0–10) 23% (0%–100%) n=10 |
1 (0–3) 24% (0%–100%) n=10 |
0 (0–1) 14% (0%–100%) n=10 |
n/a | n/a |
| 17. Number; Percent of investigations with food/environmental sample collected for testing | 3 (0–9) 8% (0%–26%) n=10 |
1 (0–2) 8% (0%–25%) n=10 |
1 (0–2) 24% (0%–100%) n=10 |
n/a | n/a |
| 18. Number; Percent of investigations where environmental health partners were contacted | 7 (0–16) 21% (0%–47%) n=10 |
2 (0–5) 19% (0%–42%) n=10 |
1 (0–4) 16% (0%–67%) n=10 |
n/a | n/a |
All data are cumulative. Core performance metrics that are required for reporting are in bold.
*FoodCORE centers reported on Year 11 (2021) metrics in 2022. Performance measures where n<10 may be indicative of limitations in reporting due to restricted staff capacity as state and local health departments prioritized activities related to COVID-19 response efforts.