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OftenBen · 1481 days ago · link · · parent · post: Questions About Accuracy of Coronavirus Tests Sow Worry :Experts believe nearly one in three infected patients are nevertheless getting negative test results
It's a viral illness. Testing for viral illness requires a detectable amount of viral load. It doesnt matter if the test is valid or not when a person can have a sub clinical viral load and still be shedding infectious particles.