Young people, self-identified right-wingers, adults who distrust government and Australians from non-English-speaking backgrounds are among the groups least likely to have received a third or fourth dose of a COVID-19 vaccine, a new study has found.

The survey by the Australian National University’s Centre for Social Research and Methods also found Australians with lower levels of education and household income were “significantly less likely” to have received a third or fourth COVID-19 vaccine dose.