Last updated: 13 February 2025
15 January 2025 - Version 2.0
  • Section added in recognition of relative difference in severity in relation to stx subtype
  • Higher risk category for children expanded from under 5 years to 5 and under (up to sixth birthday)
  • No public health action beyond enhanced surveillance form ​to be taken on stx negative O157
  • Asymptomatic testing of the whole population in a setting (e.g. an entire nursery class) not routinely recommended
  • New section on health inequalities
15 January 2025 - Version 2.0
  • Section added in recognition of relative difference in severity in relation to stx subtype
  • Higher risk category for children expanded from under 5 years to 5 and under (up to sixth birthday)
  • No public health action beyond enhanced surveillance form ​to be taken on stx negative O157
  • Asymptomatic testing of the whole population in a setting (e.g. an entire nursery class) not routinely recommended
  • New section on health inequalities
10 December 2018 - Version 1.0

First publication

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