Why do you ask?: There's no certainty here because nobody truly knows when risky behavior / exposure has occurred. If your question is really, "I only had one exposure, it's six months ago, and I just tested negative using a nucleic acid test", then my answer is, "Be thankful for good health."
Answered 6/15/2015
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A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
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