Feb 26, 2014
Lisa, what do you think of a test done eight weeks after the exposure (very low risk), if the test used looks for both antigen and antibody (ag/ab)? Is it good enough to definetely exclude hiv infection?
Response from Dr. Hightow-Weidman
Hello there A fourth generation test that looks for HIV ag and ab would be highly accurate by 8 weeks. A negative np24 antigen test accompanied by a negative HIV antibody test at 90 days or beyond would be considered conclusive for the absence of HIV infection. take care, DR W
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