> The only difference with > COVID was the scale, not > the methodology. There was a lot of novel contact tracing methodology during COVID-19, e.g. co

> The only difference with > COVID was the scale, not > the methodology. There was a lot of novel contact tracing methodology during COVID-19, e.g. contact tracing though Bluetooth "contacts": https://covid19.apple.com/contacttracing https://covid19.apple.com/contacttracing