A good read for thinking about some Ethical concerns relating to the project
https://www.brookings.edu/techstream/inaccurate-and-insecure-why-contact-tracing-apps-could-be-a-disaster/
In particular, as we engineer to reduce False Positives & False Negatives, we should be sensitive to the fact that the factors that cause these are not distributed evenly within the population.
Poorer, already-disadvantaged communities may naturally be more prone to false positives & false negatives. We should target efforts to improve rates for those communities, and not just pick “low hanging fruit” that may tend to improve the rates for more privileged communities.
An article published in the BMJ by UK epidemiologists on the ethics of contact tracing apps. Doesn’t ay much - mostly just justifies them on the basis that the reduction in COVID harm far outweighs most privacy concerns.
May be a useful reference, though.
https://jme.bmj.com/content/medethics/early/2020/05/05/medethics-2020-106314.full.pdf