[sci.med.aids] Antibody test accuracy

Walter.Stringer@f45.n120.z1.fidonet.org (Walter Stringer) (02/11/90)

    I have a question for anyone who may have some information.  Although HIV  
infection itself is not tracked, I would assume that a positive reult on the  
HIV antiboby test would indicate infection with the HIV agent.  So although the  
time frame from HIV infection to AIDS is "7-10 years and beyond", I assume that  
the positive antibody test would be the first warning flag.

    My question concerns the possibility of repeated false negatives.  Although  
most people go through the sero-conversion process to make detectable levels of  
antibodies in 4-8 weeks, as I understand it, a small group has been shown to  
take up to three years to show positive on the test.  In view of people taking  
the test prior to getting married, starting a relationship, etc., Iwonder how  
much of a likely problem this would be (if it indicates people who have engaged  
in activities that put them at risk for HIV infection should take repeated  
tests over a three to four year period before considering themselves HIV-free,  
etc.).

    Sincerely,  Walter

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