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A member asked:
How reliable is hiv dna pcr at 16 days?
2 doctors weighed in across 2 answers
We usually use the word reliable when we mean specificity in testing. If the HIV DNA PCR is positive, the specificity (reliability) is almost 100% at 16 days. However, if you mean reliable by detecting the disease (sensitivity) the sensitivity is around 90% at 16 days after exposure but almost 100% after 90 days.
Answered 1/20/2022
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A negative result 16 days after exposure would not rule out HIV infection. Visit this site for information on this topic: HIV test window periods https://www.cdc.gov/hiv/basics/hiv-testing/test-types.html
Answered 1/20/2022
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