Guidance

Zika virus: epidemiology and cases diagnosed in the UK

Historical and current epidemiology of Zika virus infections, including cases in UK travellers.

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Zika virus was first isolated from a monkey in the Zika forest in Uganda in 1947. Since 2015, it has been introduced into many countries in South and Central America, the Caribbean, and Oceania (Melanesia, Micronesia and Polynesia).

Published 11 December 2015
Last updated 17 November 2017 + show all updates
  1. Updated UK case numbers.
  2. Updated to reflect changes in travel and sexual transmission advice and revised Zika virus risk ratings.
  3. Updated UK case numbers.
  4. Updated UK case numbers.
  5. Updated number of cases diagnosed in UK.
  6. Updated UK case numbers.
  7. Updated UK case numbers
  8. Updated with latest UK case numbers.
  9. Updated with latest UK case numbers.
  10. Updated with latest UK case numbers.
  11. Updated with latest number of UK imported cases
  12. Updated following latest WHO Emergency Committee meeting.
  13. Updated with latest number of UK imported cases.
  14. Updated with latest number of UK imported cases.
  15. Updated UK imported case numbers.
  16. Number of Zika cases diagnosed in the UK updated as of 5 October 2016
  17. Updated UK imported case numbers
  18. Updated UK imported case numbers.
  19. Updated UK imported cases numbers, and statement from WHO Zika Emergency Committee.
  20. Updated numbers of UK imported cases.
  21. Updated UK imported case numbers.
  22. Updated with UK imported case numbers, including those diagnosed by serology.
  23. Updated UK imported cases and included table to show country of travel.
  24. Updated UK cases.
  25. Update to UK diagnosed cases.
  26. Clarification of areas within Oceania.
  27. First published.