Volume 27, Number 4—April 2021
Dispatch
Rare Norovirus GIV Foodborne Outbreak, Wisconsin, USA
Leslie Barclay
, Tim Davis, and Jan Vinjé
, Tim Davis, and Jan Vinjé
Table 1
Clinical and demographic characteristics of attendees associated with a norovirus GIV foodborne outbreak, Wisconsin, USA*
| Characteristic |
Value |
|---|---|
| Onset of illness | 2016 May 4 |
| Total no. ill | 49 |
| Hospitalized | 0 |
| Died | 0 |
| Duration of illness, d |
2 |
| Primary case-patients | 49 |
| Laboratory confirmed | 3 |
| Probable |
46 |
| Secondary case-patients | 0 |
| Laboratory confirmed | 0 |
| Probable |
0 |
| Sex | |
| M | 13 (26.5) |
| F | 34 (69.4) |
| Unknown |
2 (4.1) |
| Age range, y (median) |
17–77 (47) |
| Age group, y | |
| <1 | 0 (0) |
| 1–4 | 0 (0) |
| 5–9 | 0 (0) |
| 10–19 | 2 (4.1) |
| 20–49 | 24 (49.0) |
| 50–74 | 14 (28.6) |
| >75 | 1 (2.0) |
| Unknown |
8 (16.3) |
| Case-patients with known illness duration | 35 |
| Duration range, d | 1–5 |
| Duration median, d |
2 |
| Case-patients with known incubation period | 49 |
| Incubation range, h | 15–57 |
| Incubation median, h |
38 |
| Symptom | |
| Diarrhea | 44 (89.8) |
| Nausea | 41 (83.7) |
| Fatigue | 41 (83.7) |
| Headache | 35 (71.4) |
| Abdominal pain | 34 (69.4) |
| Chills | 31 (63.3) |
| Vomiting | 30 (61.2) |
| Body ache | 30 (61.2) |
*Values are no. or no. (%) except as indicated. Clinical and demographic characteristics for the 4 food handlers associated with this outbreak are not available.
Page created: January 19, 2021
Page updated: March 18, 2021
Page reviewed: March 18, 2021
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