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Blood group and false negative?

Jul 19, 1999

I was wondering if the blood group and RH factor could affect the Elisa results giving a false negative. After a low risk exposure (I gave oral sex and he did not ejaculate) I have taken 3 Elisa test at 6 weeks, 3 and 6 months, the three of them negative. Should I have my urine tested for HIV since I have blood group O RH negative and supposely this is not a common blood group, would this be interfering with the Elisa results?

Response from Dr. Holodniy

Blood group will not affect the HIV antibody test. You are negative. MH

Seronegative AIDS

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