Cleared already? Didn’t it take 3 days to clear the last one?
Early tests can be negative. Not enough virus for detection or some such. Dr. Brantly’s first test was negative too. It was 72 hr. test which came back positive.
This has been a problem in Africa, where the people were released due to false negatives and were free to infect others.
From what I gather, the lockdown was triggered by the patient’s recent travel, not due to symptoms.