Read Jason Bay, Director at GovtTech Agency, Singapore & product lead for TraceTogether, world’s first Bluetooth contact tracing system. Contact tracing apps help ONLY if part of a MUCH bigger puzzle. 'We use TraceTogether to supplement contact tracing — not replace it.' THREAD

'If you ask me whether any Bluetooth contact tracing system deployed or under development, anywhere in the world, is ready to replace manual contact tracing, I will say without qualification that the answer is, No.'

'There are critical factors (like ventilation — see below; update: or singing!) that a purely automated system will not have access to. You cannot “big data” your way out of a “no data” situation. Period.'

Any attempt to believe otherwise, is an exercise in hubris, and tech triumphalism. There are lives at stake. False positives and false negatives have real-life (and death) consequences. We use TraceTogether to supplement contact tracing — not replace it. https://blog.gds-gov.tech/automated-contact-tracing-is-not-a-coronavirus-panacea-57fb3ce61d98