Mosquito-borne diseases on the rise again

We have updated our Mosquito-borne disease in New Zealand surveillance report. Here are the key findings.

  • Mosquito-borne disease notifications increased from 46 in 2022 to 122 in 2023, driven mainly by rises in dengue and malaria cases.
  • Asian and Southeast Asian countries were common travel destinations for individuals returning to New Zealand with dengue in 2023. Those with malaria had travelled to Africa and the Pacific.
  • Higher mosquito-borne disease rates were observed for males and Pacific peoples.
  • In 2019–23, the Auckland district had a high mosquito-borne disease rate that was nearly twice the national rate.

Find out more here.