From: Epidemiology of foodborne Norovirus outbreaks in Catalonia, Spain
Ā | NoV outbreaks | Bacterial outbreaks | p value |
---|---|---|---|
No. outbreaks | 30 | 86 | Ā |
No. cases | 741 | 1018 | Ā |
Size of outbreak (median and range) | 8.5 (2ā174) | 5.0 (2ā123) | 0.029a |
Attack rate (median) | 0.66 | 0.70 | 0.091a |
Abdominal pain (%) | 81.5 | 79.6 | 0.34 b |
Vomiting (%) | 59.0 | 39.0 | < 0.001 b |
Diarrhea (%) | 68.5 | 87.0 | < 0.001 b |
Nausea (%) | 62.2 | 41.2 | < 0.001 b |
Fever (%) | 42.0 | 52.4 | < 0.001 b |
Hospitalizations (%) | 0.15 | 8.6 | < 0.001 b |