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Majority of Positive Coronavirus Cases on U.S. Aircraft Carrier are Symptom-Free
PJ via Instapundit
...Maybe we should be asking just how good these tests are? As many as 1 in 3 nasal swab tests have been a false positive or a false negative. In a pandemic, that's not very helpful.

...Is it bad testing? Are some people more or less immune to the effects of the virus? Is there something in the virus itself that needs to be "turned on" in order to sicken its host?

Despite thousands of researchers working night and day to find the answer to these and other questions, it may be months or years before we know enough about the coronavirus to combat it effectively. In the meantime, all we can do is be careful and try to stay out of its way. You would expect that some kind of modified social distancing policy and quarantining sick people would continue until a vaccine is developed or we understand enough to render the virus ineffective.
Posted by: g(r)omgoru 2020-04-17
http://www.rantburg.com/poparticle.php?ID=569026