CDC Flip-Flops on Coronavirus Testing Guidelines

New CDC guidelines for asymptomatic coronavirus testing caused an uproar this week. The advice was that people who’ve been exposed to the coronavirus but don’t have symptoms shouldn’t get tested. But then, in an unusual clarification, the CDC walked that back. Meanwhile, the FDA gave “emergency use authorization” to a rapid antigen test that costs only $5. Also this week, Governor Gavin Newsom signed a deal with a diagnostics lab to more than double test processing capacity in California. We’ll explain what these developments mean and which could help open schools and bring our economy back to life.

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