By ADRIAN GROPPER
As COVID-19 vaccines become widely, if not fairly, available in different regions, both the public and private sector are working to develop vaccine credentials and associated surveillance systems.
Information technology applied to vaccination can be effective, but it can also be oppressive, discriminatory, and counter-productive.
But these systems can be tuned to reflect and address key concerns.
What follows is a list of ten separable concerns, and responsive design strategies. The concept of separation of concerns in technology design offers a path to better health policy. Because each concern hardly interacts with the others, any of them can be left out of the design in order to prioritize more important outcomes. Together, all of them can maximize scientific benefit while enhancing social trust.
- Authenticity
An inspector should be assured that a vaccine certificate was not tampered with and that it was issued to the presenter. This need not imply any privacy risk, or even need a network connection. One such method for authenticating vaccine credentials adds a human-recognizable and machine-readable face photo to a standard 2D barcode. It works with paper as well as mobile phone presentations.
- The digital divide
For this concern, paper credentials have equity and privacy advantages. Equity, because paper is cheap and well understood. Privacy, because there is no expectation that a person must unlock and show a mobile phone. Digitally signed certificates that also include a photo, like #1 above, can be copied for convenience without risk of fraud.
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