Skip to main content

Advertisement

Table 3 Clinical characteristics of NoV and bacterial outbreaks. Catalonia, 15 October 2004 – 30 October 2005

From: Epidemiology of foodborne Norovirus outbreaks in Catalonia, Spain

  NoV outbreaks Bacterial outbreaks p value
No. outbreaks 30 86  
No. cases 741 1018  
Size of outbreak (median and range) 8.5 (2–174) 5.0 (2–123) 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
  1. a Mann-Whitney U; b χ2