Table 1.
Clinical details of cases (n = 74). Norovirus outbreak, Oslo, November 2013
| Clinical details | n | % |
|---|---|---|
| Symptoms | ||
| Nausea | 58 | 78 |
| Vomiting | 51 | 69 |
| Diarrhoea | 50 | 68 |
| Feeling unwell | 47 | 64 |
| Headache | 40 | 54 |
| Abdominal pain | 38 | 51 |
| Muscular pain | 31 | 42 |
| Fever | 23 | 31 |
| Duration of illness | ||
| <6 h | 0 | 0 |
| 6–12 h | 3 | 10 |
| 13–24 h | 25 | 81 |
| ⩾2 days* | 3 | 10 |
| GP visit | 2 | 3 |
| Norovirus in stool sample | 5† | 100 |
| Hospitalization | 0 | 0 |
* Three people reported still being sick at the time they answered the questionnaire 10 days after the meeting.
†
Only five cases provided a stool sample.