What it will take to get to mass asymptomatic screening for COVID-19

Making widespread COVID-19 screening a priority for public health will require a broad and abundant basket of testing technologies, and a coordinated plan for how to use and pay for them.

The first barrier is having enough tests. But even as more manufacturers ramp up production of more types of tests, confusion about whether and how asymptomatic testing is recommended, regulated and paid for will limit their reach...