Victoria is the only state in Australia recording data about ethnicity as part of the COVID-19 vaccination rollout, which some experts argue is vital to understanding the impacts of the pandemic on different communities.

In March, federal authorities told the ABC that data on languages spoken and country of birth would be collected when coronavirus vaccines are given and when people test positive for COVID.

Jaya Dantas, a professor at the Curtin School of Population Health, says ethnicity data provides important information not otherwise captured by language spoken or country of birth.