[cdtwigg]

Propublica has been covering this, the FDA has been throwing up barriers to rapid tests while Europe has been embracing them. One of the barriers is that "users are supposed to be able to execute the test without training " which I suspect is what's leading to the inclusion of optical sensors etc. https://www.propublica.org/article/this-scientist-created-a-...

[londons_explore]

Which is pretty much an impossible goal - the user still needs to be able to follow quite detailed instructions to get the sample, correctly mix in the buffer solution, and dose the correct number of drips. Sure, thats something 99% of people can do, but then 99% of people can see 1 or 2 lines on the test without the help of an app...