CDC FoodCORE Year Four Cumulative Metrics – Norovirus, Other Etiology, and Unknown Etiology (NOU)

Data Report Period: January 1, 2014 to December 31, 2014  

Performance Metrics:
(See NOU Metrics for complete language and definition)
Norovirus Measures
Mean (Range)
Other Etiology Measures
Mean (Range)
Unknown Etiology Measures
Mean (Range)
NOU Measures
Mean of Individual Means
1a. Number of investigations1 91.5 (9 – 255) n = 915 15.7 (4 – 44) n = 157 20.8 (0 – 79) n = 208 n = 1295
1b. Number of foodborne or point-source investigations1 18.6 (4 – 83) 9.5 (3 – 18) 4.4 (1 – 14) 10.8
1c. Number of person-to-person investigations1 72.9 (2 – 238) 6.2 (0 – 26) 18.2 (0 – 73) 32.4
2a. Number; Percent of investigations with clinical specimens collected and submitted to PHL from ≥2 people 43 (3 – 157); 54.4% (9 – 100%) 9.5 (0 – 22); 68.7% (38 – 100%) 5.9 (0 – 35); 23.6% (0 – 45%) 19.5; 48.9%
2b. Number; Percent of investigations where clinical specimens were tested for GI viruses at PHL1 43.7 (3 – 157);
72.9% (11 – 100%)
3.8 (0 – 17); 32% (0 – 100%) 6 (0 – 35); 51.4% (0 – 100%) 17.8; 52.1%
2b-i. Number; Percent of investigations where specimens were tested for norovirus by RT-PCR1 43.7 (3 – 157);
75.6% (11 – 100%)
N/A N/A N/A
2b-i-1. Number; Percent of norovirus investigations with ≥1 positive specimens with sequencing & upload to CaliciNet1 42.6 (0 – 126); 61.3% (0 – 100%) N/A N/A N/A
2b-i-1a. Median days from first norovirus detection via RT-PCR to upload to CaliciNet1 7.6 days (1 – 26 days) N/A N/A N/A
2b-ii. Number; Percent of investigations where specimens were tested for other viruses 0.2 (0 – 1); 0.2% (0 – 1%) 2.9 (0 – 16); 20.9% (0 – 94%) 3.4 (0 – 20); 11.9% (0 – 57%) 2.2; 11%
2c. Number; Percent of investigations where clinical specimens were tested for pathogenic bacteria or their toxins, antigens, or antibodies1 13.3 (0 – 70); 31.3% (0 – 89%) 6.7 (1 – 19); 55.7% (17 – 100%) 1.2 (0 – 4); 35.4% (0 – 100%) 7.1; 40.8%
2c-i. Number; Percent of investigations where clinical specimens were tested using culture-based diagnostics at PHL 22.4 (5 – 70); 58.8% (20 – 100%) 6.9 (1 – 18); 58.1% (17 – 100%) 2 (1 – 4); 68.6% (14 – 100%) 10.4; 61.8%
2c-ii. Number; Percent of investigations where clinical specimens were tested using non-culture-based diagnostics at PHL 1.4 (0 – 5); 4.2% (0 – 20%) 0.7 (0 – 2); 9.9% (0 – 50%) 0 (0 – 0); 0% (0 – 0%) 0.7; 4.7%
2d. Number; Percent of investigations where clinical specimens were tested for parasites at PHL 0.1 (0 – 1); 0.4% (0 – 4%) 1.5 (0 – 5); 14.8% (0 – 67%) 0.1 (0 – 1); 0.3% (0 – 3%) 0.6; 5.2%
3a. Number; Percent of investigations with exposure assessments conducted1 13.6 (2 – 56); 79.6% (22 – 100%) 6.1 (1 – 15); 73.4% (7 – 100%) 3.2 (0 – 10); 63.4% (0 – 100%) 7.6; 72.1%
3b. Number; Percent of investigations where an analytic epidemiologic study was conducted1 6.1 (0 – 20); 50.8% (0 – 100%) 2 (0 – 4); 39.2% (0 – 100%) 1.2 (0 – 4); 34.1% (0 – 100%) 3.1; 41.4%
4. Number; Percent of investigations with suspect vehicle/source identified1 3.9 (0 – 14); 28.3% (0 – 89%) 4 (0 – 11); 37.4% (0 – 71%) 1.2 (0 – 3); 36% (0 – 100%) 3.0; 33.9%
5. Number; Percent of investigations with confirmed vehicle/source identified1 2.6 (0 – 12); 21.2% (0 – 80%) 2.9 (0 – 6); 38.6% (0 – 100%) 0.2 (0 – 1); 4.7% (0 – 25%) 1.9; 21.5%
6. Number; Percent of clusters with identified vehicle/source with:
a. Exclusion of ill person(s) 5.4 (0 – 17); 34.3% (0 – 80%) 1.5 (0 – 5); 22.8% (0 – 56%) 0.7 (0 – 2); 23.7% (0 – 100%) 2.5; 26.9%
b. Remediation or closure 4 (0 – 19); 35.3% (0 – 86%) 1.9 (0 – 4); 29.4% (0 – 100%) 0.2 (0 – 1); 5.5% (0 – 33%) 2.0; 23.4%
c. Educational campaign 2.1 (0 – 9); 29.1% (0 – 100%) 1.6 (0 – 4); 26.5% (0 – 80%) 0.3 (0 – 2); 16.7% (0 – 100%) 1.3; 24.1%
d. Media/public messaging 0.9 (0 – 4); 11.4% (0 – 80%) 1.1 (0 – 3); 15% (0 – 50%) 0 (0 – 0); 0% (0 – 0%) 0.7; 8.8%
d. Media/public messaging 0 (0 – 0); 0% (0 – 0%) 1.6 (0 – 7); 16% (0 – 57%) 0.2 (0 – 1); 5.5% (0 – 33%) 0.6; 7.2%
7. Number; Percent of investigations with link to a common location where an on-site environmental health assessment was conducted1 12.9 (0 – 48); 81.5% (0 – 100%) 6 (0 – 15); 68.4% (0 – 100%) 3.2 (0 – 11); 70.3% (0 – 100%) 7.4; 73.4%
8. Number; Percent of investigations where food or environmental sample(s) were collected for testing1 1.6 (0-8); 15.8% (0-80%) 2.2 (0 – 5); 28.5% (0 – 60%) 1.6 (0 – 6); 27.7% (0 – 100%) 1.8; 24%
9. Number; Percent of investigations where environmental health, agriculture, regulatory, or food safety program staff were contacted 15.1 (0 – 47); 84.1% (0 – 100%) 5.6 (1 – 12); 72% (14 – 100%) 3.3 (0 – 8); 67.5% (0 – 100%) 8.0; 74.5%
10. Number; Percent of outbreaks with NORS forms completed1 68.6 (5 – 241);
91.1% (16 – 100%)
13.3 (0 – 40); 78.5% (0 – 100%) 14.7 (2 – 79); 73.9% (35 – 100%) 32.2; 81.2 %

1 Minimum reporting requirement for FoodCORE Centers

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