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What England’s new vaccine passport could mean for covid tech’s next act

Almost exactly a year ago, software developers rushed to build technologies that could help stop the pandemic. Back then, the focus was on apps that could track whether you’d been near someone with covid. Today the discussion is about digital vaccine credentials, often called “vaccine passports,” designed to work on your smartphone and show that…

Almost exactly a year ago, software developers rushed to build technologies that could help stop the pandemic. Back then, the focus was on apps that could track whether you’d been near someone with covid. Today the discussion is about digital vaccine credentials, often called “vaccine passports,” designed to work on your smartphone and show that you’ve been inoculated. 

The latest launch came on May 17 in England, with the National Health Service’s new digital credential for crossing borders. Here’s what we know about it: 

  • It’s only for people going out of the UK from England (Scotland, Wales, and Northern Ireland are not yet using the app, although it could expand to them soon).
  • It’s just for crossing borders. Using it at places around town (like pubs) has been suggested by some, but that remains a controversial idea
  • Not many countries accept proof of vaccination as an alternative to quarantining or showing a negative covid test, so those using the app still need to check the rules for their particular destination.
  • It’s an upgrade of an NHS app that connects people to their doctors’ offices and medical records—and not an addition to the NHS’s much-debated contact tracing app.
  • Right now it can only show vaccination status, not other information such as negative test results, although that could be added.
  • People without smartphones can request a letter that verifies they’ve had both doses of the vaccine. 

Experts are already keeping an eye on whether the NHS pass expands beyond its current scope. Imogen Parker of the Ada Lovelace Institute notes that there’s already been resistance to a pass that would need to be shown at places like pubs and shops. “It will be important to monitor whether Monday’s rollout is a prelude to more extensive use,” she says. “But it’s welcome that the government appears to be treading very carefully.”

The NHS app is not the only vaccine credential in development. Around Europe, governments are working on—or have already launched— smartphone-based vaccine passports. That includes the EU itself, which proposed a digital “green certificate” in mid-March. France’s TousAntiCovid contact tracing app was updated last month so that it can show a vaccination certificate or a negative test result, although now other countries need to accept it. Italy’s innovation minister, meanwhile, has said the country might adapt its Immuni exposure notification app to include a vaccine credential, and German officials say they hope to roll one out by the end of June

Outside of Europe, the picture is even more mixed. Israel launched its “green pass” in February, and Singapore’s TraceTogether app can now show proof of vaccination. In the US, officials have said they will not develop a federal app, so various states and private companies are creating a patchwork of approaches. Private and nonprofit initiatives are also working on their own systems and protocols, including Linux Foundation Public Health, the biometric security company CLEAR, various initiatives linked to the travel industry, and more. 

Elizabeth Renieris, a tech and human rights fellow at the Harvard Kennedy School’s Carr Center and a fellow with the Digital Civil Society Lab at Stanford University, says the hype over vaccine passports—both in the US and globally—sounds eerily like the rollout of covid exposure apps last year. She says those apps launched in a rush, and with a slew of unanswered questions about how they could support public health goals in useful ways. 

“There’s a kind of ‘rinse and repeat’ happening,” she says. “We need to think about how technology becomes a proxy for governance. It creates the illusion of having things under control.” She points to what’s happening in India right now: “You have Modi pushing a new app, and all the experts in the country are screaming, ‘We need vaccines.’”

Lessons from last year’s flurry of pandemic tech

It should be said that vaccine credentials and exposure notification apps are technically very different things. Exposure notification apps usually work anonymously and invisibly, using Bluetooth signals between phones. Vaccine passports, in comparison, are digital documents tied to real names and offered up to strangers as evidence that they can be near you without fear of infection. 

But other issues are similar, such as the way they are built, the kinds of entities involved, and the fact that new systems are being rolled out in a high-pressure envir

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