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Guidance

Invasive group A streptococcal disease: managing close contacts in community settings

Guidelines for managing close community contacts of cases of invasive group A streptococcal (iGAS) disease, including flow diagrams.

Updates to this page

From:
UK Health Security Agency
Published:
19 March 2008
Last updated:
5 September 2025
Show all updates

  1. Added 'Illustrated factsheet 2. Invasive group A streptococcal infection (iGAS) – information for people who inject drugs or are experiencing homelessness'.

  2. Updated information on risk assessment in nurseries, schools and other childcare settings (section 4.1).

  3. Changed to using diagnosis date (definition included) instead of onset date to define close contacts and the 10-day post-exposure period. Clarified actions required within 10 days of exposure and for the 30-day surveillance period, and that actions should be undertaken for both confirmed and probable cases. Added Clarithromycin as a second line choice for chemoprophylaxis.

  4. Corrected algorithm 4.

  5. Updated guidance.

  6. First published.

Documents

UK guidelines for the management of contacts of invasive group A streptococcus (iGAS) infection in community settings

Ref: UKHSA publication gateway number GOV-14237

PDF, 1.22 MB, 78 pages

This file may not be suitable for users of assistive technology.

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If you use assistive technology (such as a screen reader) and need a version of this document in a more accessible format, please email publications@ukhsa.gov.uk. Please tell us what format you need. It will help us if you say what assistive technology you use.

Accessible text versions of the 4 algorithms

HTML

Factsheet 1. Invasive group A streptococcal infection (iGAS)

Ref: UKHSA publications gateway number GOV-14237

PDF, 121 KB, 2 pages

This file may not be suitable for users of assistive technology.

Request an accessible format
If you use assistive technology (such as a screen reader) and need a version of this document in a more accessible format, please email publications@ukhsa.gov.uk. Please tell us what format you need. It will help us if you say what assistive technology you use.

Factsheet 2. Invasive group A streptococcal infection (iGAS) – information for people who inject drugs

Ref: UKHSA publications gateway number GOV-14237

PDF, 93.2 KB, 2 pages

This file may not be suitable for users of assistive technology.

Request an accessible format
If you use assistive technology (such as a screen reader) and need a version of this document in a more accessible format, please email publications@ukhsa.gov.uk. Please tell us what format you need. It will help us if you say what assistive technology you use.

Illustrated factsheet 2. Invasive group A streptococcal infection (iGAS) – information for people who inject drugs or are experiencing homelessness

Ref: GOV-19404

PDF, 1.19 MB, 2 pages

Details

This publication is to help health professionals manage cases of invasive group A streptococcal (iGAS) disease.

Risk information for close community contacts of cases of iGAS infection is also available.

Previous guidance was published by Public Health England.

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