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PCR test showing slight reactivity

Jul 25, 2000

I have recently tested positive for HIV. The first test approx 4 wks post exposure was pos, second (western blot) was neg. PCR test was done approx 6 wks. post exposure and it showed one band of reactivity. no cd 4 was done and viral load of 13. Immunologists says that it is still a possibility for a false positive. Is this true?? If so would you please explain.

Response from Dr. Holodniy

There have been a few cases reported in the medical literature which demonstrate false positive viral loads in people who were subsequently found to not be HIV infected. The viral load levels are usually very low (< 500), and antibody tests have been negative. A follow-up antibody test is indicated in such a case.


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