Vaccine passports can be a temporary tool that allows travel to re-open. Since several Covid-19 vaccines have been shown not just to protect the person that’s vaccinated, but also to prevent spread, they can help assure a country that visitors who have had a shot are less likely to infect their citizens with the virus.
There are complex arguments – both practical and ethical – around vaccine passports. But this celebrity doctor’s complaint about them seems ignorant of the facts..