Guidance

Zika virus risk: algorithm for assessing pregnant women

Flowchart for assessing women who have travelled while pregnant to areas with active Zika virus transmission.

• From: UK Health Security Agency
• Published: 29 January 2016
• Last updated: 1 April 2026
  Show all updates

  1. 1 April 2026

     Updated flowchart has been added: “Assessing pregnant women with a potential risk of Zika virus (ZIKV) acquisition”

  2. 27 February 2019

     Updated algorithm.

  3. 2 August 2017

     Updated to reflect changes in travel and sexual transmission advice and revised Zika virus risk ratings.

  4. 15 August 2016

     Updated (v8)

  5. 5 August 2016

     Revised (v7) in line with changes to diagnostic testing.

  6. 17 June 2016

     Revised definition of active transmission areas (now 3 months).

  7. 26 April 2016

     Updated to version 5, with revised list of symptoms in the notes section.

  8. 11 March 2016

     Updated to version 4, with changes in box one on the algorithm and footnote 3.

  9. 1 March 2016

     Footnotes 3, 4, 5 and 7 were revised.

  10. 1 February 2016

      v2 published 1 February 2016.

  11. 29 January 2016

      First published.

Documents

Algorithm_assessing pregnant women with a potential risk of Zika virus (ZIKV) acquisition

PDF, 415 KB, 2 pages

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Details

This guidance was compiled with the Royal College of Obstetricians and Gynaecologists, the Royal College of Midwives and Health Protection Scotland.