Wow. Potentially huge. https://twitter.com/verge/status/1248656731711905794

Just today, I wrote about why Bluetooth-based contact tracing is a flawed solution.
- Hard to get population-wide adoption. Singapore managed to get 12%.
- BLE data collection is not granular to the level of 6 feet. Can lead to many false positives. https://www.theverge.com/interface/2020/4/10/21215267/covid-19-contact-tracing-apps-bluetooth-coronavirus-flaws-public-health

It could also reduce likelihood of state agencies to invest in what we know works: hiring human beings to get out on the street and make phone calls.

I’m open to the idea of this being effective. I hope it is. But public health experts have been extremely skeptical.

From Duke: "Cell phone-based apps recording proximity events between individuals are unlikely to have adequate discriminating ability or adoption to achieve public health utility, while introducing serious privacy, security, and logistical concerns."
https://healthpolicy.duke.edu/sites/default/files/atoms/files/covid-19_surveillance_roadmap_final.pdf

@drTomFrieden and @Farzad_MD, I’m very curious to get your thoughts on the Apple/Google collaboration!