Coronavirus live updates: Cheap, rapid tests expand US toolbox, Germany on watch as restrictions eased

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“We need to understand at what rate are these cases occurring,” Dr. Scott Gottlieb says about mysterious coronavirus complications affecting some children.

, said some 40,000 doctors already have the equipment needed to process the tests because it's the same machine that would be used for flu and strep throat.

However, the new test is only about 85% sensitive, Gottlieb said, so test results will still need to be confirmed with another kind of test like the more standard diagnostic PCR test. He added that the test is best used to confirm that symptomatic individuals are in fact infected with the coronavirus and not for screening potentially healthy people.

"But the virtue is, for the first 85 patients, you've now effectively diagnosed them right away in the doctor's office in about five minutes, very inexpensively without having to reflex, without having to send off a PCR-based test," he said. "So this really does expand the ability to test within the doctor's office. And it's another tool, another layer of testing.

The reproduction number is a measure of how many people an infected individual will go on to infect, on average. Health authorities have aimed to keep the number below 1 in order to gradually reduce the number of infections, but in Germany, the number has risen to 1.1, according to the Robert Koch Institute for disease control.

A number above 1 means the number of infections is increasing. Germany started to lift lockdown restrictions around three weeks ago. —

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