Vaccine passports that prove a person's Covid-19 immunisation status are expected to be available from December for New Zealanders who want to travel abroad. In Australia, the government is working to have a vaccine passport system in place within the next few weeks as the country looks to resume international jet-setting.
However, with the Delta variant becoming dominant around the world and fully vaccinated people becoming infected with Covid-19, questions are being raised about the effectiveness of the vaccines and whether vaccine passports are actually worthwhile.
Professor Kim Mulholland is a Professorial Fellow at the University of Melbourne Department of Paediatrics, and Professor of Child Health and Vaccinology at London School of Hygiene and Tropical Medicine. He is also a member of the World Health Organisation's Strategic Advisory Group of Experts on Immunization (SAGE), which advises the WHO on overall vaccine policies and strategies.