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TraX mpox data report: Report period 10 Oct 2022 to 21 May 2023

This report summarises data collected during the first eight months of the TraX Study. Data are collected weekly on mpox vaccine uptake, infection, and sexual behaviours among people considered at high risk of mpox infection in Australia.

Key findings
  • During this reporting period (10 October 2022 to 21 May 2023), 2868 people across Australia participated in the TraX study. Most participants were from New South Wales (83.9%).
  • The monthly testing for mpox remained consistently low at around 1.0%.
  • At study entry, 22.2% of participants reported being unvaccinated against mpox, 50.1% had received one vaccination, and 27.7% had received two mpox vaccinations.
  • As of 21 May 2023, the proportion of people who reported being unvaccinated against mpox had reduced by more than half to 9.5%, leaving 273 participants unvaccinated. The proportion who reported having received only one mpox vaccination also fell to 11.3% and the proportion who had received both mpox vaccinations increased to 79.1%.
  • At study entry, 11 participants reported prior mpox infection.