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Zika virus (ZIKV): clinical and travel guidance

Travel and clinical advice on Zika: assessing pregnant women following travel; epidemiology; symptoms; transmission.

Zika is a mosquito-borne infection caused by Zika virus, a member of the genus flavivirus and family Flaviviridae. Zika virus was first isolated from a monkey in the Zika forest in Uganda in 1947.

Since 2015, an outbreak of Zika virus infection has been occurring in the Caribbean, Central and South America, Oceania (Melanesia, Micronesia and Polynesia) and some parts of Asia and Africa.

Latest updates

WHO, in conjunction with US Centers for Disease Control and Prevention and European Centre for Disease Prevention and Control, developed a revised Zika country classification scheme which was published in March 2017. PHE and the National Travel Health Network and Centre (NaTHNaC) have reviewed and updated their Zika travel and sexual transmission advice as a result and have made changes to the risk ratings in some countries.

Travellers should use the Country Information Pages (CIPs) on the National Travel Health Network and Centre (NaTHNaC) website for up to date and detailed advice for those travelling to countries or areas affected by Zika virus. The CIPs are also linked to each individual country from the A to Z country list.

For further advice regarding:

Epidemiology and cases diagnosed in the UK

Symptoms and complications

Transmission

  1. Zika virus: transmission

    • Guidance

Preventing infection by sexual transmission

Travel advice

Travel associated risks of Zika have been classified into 3 categories based on the current and potential epidemiological situation in order to ensure that travel advice is appropriate and proportionate.

See also Zika virus and immuncocompromised patients

  1. Zika virus: country specific risk

    • Guidance
  2. Zika virus: travel advice

    • Guidance
  3. Mosquito bite avoidance for travellers

    • Guidance

Zika and pregnancy

Guidance for primary care and clinicians has been jointly developed by PHE, the Royal College of Obstetricians and Gynaecologists and Royal College of Midwives, and Health Protection Scotland.

Zika virus infection may present an increased risk for certain groups of the population, particularly pregnant women. Specific travel advice for women planning pregnancy or who are currently pregnant is available.

Interim advice for health professionals.

Zika virus briefing for midwives.

Neonatologist guidance

Primary care guidance

Guidance for primary care and clinicians has been jointly developed by PHE, Royal College of General Practitioners and the British Medical Association.

Zika virus infection is not a notifiable disease in England.

Immunocompromised patients

Laboratory diagnosis

  1. Zika virus: sample testing advice

    • Guidance

UK risk assessment

If a person acquires Zika abroad and becomes ill on their return to the UK, any public health risk to the wider population is negligible, as the mosquito that transmits the virus is not found in the UK.

  1. HAIRS risk assessment: Zika virus

    • Guidance

UK mosquito surveillance

  1. Mosquito surveillance

    • Guidance
Published 11 December 2015
Last updated 2 August 2017 + show all updates
  1. Updated to reflect changes in travel and sexual transmission advice and revised Zika virus risk ratings.
  2. Updated UK case numbers.
  3. Latest update to UK case numbers
  4. Added statement about Zika virus country classifications.
  5. Update to UK case numbers, and update to laboratory testing advice
  6. Latest update to UK case numbers.
  7. Sexual transmission advice algorithm added.
  8. Latest updates to country specific risks
  9. Latest update to UK case numbers.
  10. Latest update to UK cases.
  11. Latest update to country specific risks
  12. Latest updates to sexual transmission advice, primary care guidance, travel advice, UK case numbers and laboratory diagnosis.
  13. Updated UK imported case totals.
  14. Updated country specific Zika risk.
  15. Updated country specific Zika risk.
  16. Latest update to UK imported case totals.
  17. Updated country specific Zika risk.
  18. Updated country specific Zika risk.
  19. Updated UK imported case totals.
  20. Latest update to country specific risk
  21. Latest update to UK case numbers.
  22. Latest update to sexual transmission advice.
  23. Latest updates to UK cases and country specific risks page.
  24. Latest update to country specific risks page.
  25. Latest update to UK case numbers.
  26. Latest update to country risks page.
  27. Latest update to UK case numbers.
  28. Updated UK imported case numbers.
  29. Updated country risks page.
  30. Updated UK case numbers.
  31. Updates to country specific risks.
  32. Update to Country specific risks page
  33. Latest updates: UK case numbers
  34. Latest update to country specific risks page.
  35. UK imported cases updated.
  36. Added latest update to Zika in pregnancy
  37. Added latest updates to UK imported cases and country specific risks.
  38. Added information on UK mosquito surveillance.
  39. Revised: sample testing advice, guidance in pregnancy, for primary care and neonatologists.
  40. First published.