Tech’s Coronavirus Workarounds Have Their Limits

Technology has changed the world since the last major outbreak, but the new workarounds only go so far

As the coronavirus threatens to spread across the U.S., federal health authorities expand the criteria for whom should be tested and streamline test-kit approvals. Photo: Jeenah Moon/Bloomberg

28365365体育投注 This is the fourth column in a five-part Heard on the Street series about the market and economic impact of the coronavirus epidemic.

Technology has changed the world since the last major global virus scare, for better and for worse.

Consider the state of things when SARS rocked the global economy in 2003. Cellphones were candy-bar-shaped...