West Nile Virus and Tropical Arbovirus

There is increasing awareness of the risks associated with the transmission of mosquito borne viruses (arboviruses) via blood transfusions. While the mosquitoes that carry these viruses are not present in New Zealand, the risk of acquiring the infection is linked to being bitten while travelling overseas.

The most important viruses in this group are Chikungunya, Dengue, West Nile Virus and Zika. There is considerable overlap in the geographic risk areas for some of these viruses.

When can I donate?

  • If you have been in good health, you must wait 4 weeks after you leave this country before you give blood in order to prevent the infection being transmitted by transfusion.
  • If you have been diagnosed with Chikungunya, Dengue or Zika infection you must wait 4 months after leaving the country or complete recovery (whichever is the later) before you give blood
  • If you were unwell during your stay in the country or within 4 weeks of leaving the country experienced symptoms such as high fever, headache, joint pain, body pain, conjunctivitis and/or rash, you must wait 4 months after leaving the country or complete recovery (whichever is the later) before you give blood.
  • If you have been diagnosed with Dengue Hemorrhagic Fever (DHF) you must wait 12 months before donating.
  • Please contact us on 0800 GIVE BLOOD (0800 448 325) to book an appointment and ask to speak with a nurse if you have any further questions regarding eligibility.

 

Most people who travel outside New Zealand are still able to donate blood when they return. However, travel to an area where there is a risk of exposure to certain diseases can result in symptomless infection(s) that can be transmitted through blood transfusion.

Go back to the Donating after Travelling tool

Back to top

Subscribe