Table 2

Summary of hospitalisation data by pathogen, UK 1993–2008

OrganismHospitalisation in outbreaksHospitalisation in IID1 and IID2 studies
HospitalisedAffectedPer centOutbreaks with dataSourceHospitalisedAffectedPer cent*Source
Bacteria
C. perfringens211200.221Outbreak surveillance2782.6IID1 and IID2
Campylobacter24240.529Outbreak surveillance54411.1IID1 and IID2
E. coli O15719787722.570Outbreak surveillance0233.3IID1 and IID2
ListeriaAll outbreaks occurred in hospitalsNo cases identified
Salmonella41955277.6217Outbreak surveillance41143.5IID1 and IID2
Shigella41532.68Outbreak surveillance0118.3IID1
Protozoa
Cryptosporidium318363.746Outbreak surveillance0502.0IID1 and IID2
Giardia11370.75Outbreak surveillance1342.9%IID1 and IID2
Viruses
 AdenovirusNo outbreaks reported0791.3IID1 and IID2
 Astrovirus2882.37Outbreak surveillance1671.5IID1 and IID2
 Norovirus8012 3330.6342Outbreak surveillance22011.0IID1 and IID2
 SapovirusNo outbreaks reported0771.3IID2
 Rotavirus2012111.759Outbreak surveillance1641.6IID2
  • *Where no hospitalisations were observed, the hospitalised percentage was calculated assuming the next case observed would have been hospitalised (see online supplementary technical appendix).

  • C. perfringen, Clostridium perfringens; E. coli, Escherichia coli; IID, infectious intestinal disease.