Scientists say digital immunity passports raise a number of issues, from how immunity is determined to the protection of users' privacy.
Cheaper and more widely-available means of testing the disease would also be crucial to deploying immunity passports, Hinrikus said.
Worrying about antibodies is a bit like worrying that the wind section is playing loud enough and not the whole orchestra.The World Health Organization hasgovernments not to go down the path of handing out immunity passports — physical or digital — due to doubts about the extent to which antibody tests confer immunity.
Antibodies aren't the "be all and end all" of immunity and can take "a few days to a couple of weeks" to develop, Clarke said, adding there are other factors that need to be considered, such asSome experts say online immunity certificates are unethical as they would give certain privileges to people who've contracted Covid-19 and may even encourage people to catch the disease in order to obtain immune status.
While the TransferWise team concedes immunity passports aren't a "perfect solution," Harsh Sinha, the firm's chief technology officer, says it's an "iterative" approach that can evolve with the science on coronavirus immunity.
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