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Reason for delayed raction?/accuracy of 6 months test

Mar 15, 2001

I have read on many sites, including this one, that although the vast majority of people can expect an accurate result for an HIV test 6 months after possible exposure, some people do not produce anti bodies later than this. Why is this? Is it due to them having weaker immune systems already, and that this causes the body to take longer to respond. How confident can I be that a negative anti body test will be accurate 6 months after?

Response from Dr. Holodniy

We have heard of many urban legends on this site and others about delayed antibody production. The real data is hard to come by. To my knowledge, if these patients exist, their immune systems have not been studied.

difference between RNA and DNA detection
PCR and RNA and others

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