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A member asked:
Is there a possibility that a negative hiv combo test that was negative 5 months after unprotected sex changes to positive with no further exposure? i know the test says 99.99 accurate so i feel like its possible for it to change or miss the virus?
A doctor has provided 1 answer
The sensitivity of a fourth generation HIV test is 99.7% by CDC study. So out of 1,000 tests, there are 3 false negative tests so if your infection is confirmed, you are unfortunately one of the three with false negative result in 1,000 tested subjects.
Answered 6/13/2022
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