A member asked:

Determine ag/ab combo hiv test neg after 45 days. would it turn positive at 12 weeks or can i relax? (risk: recept. oral sex with a man, no ejac.)

A doctor has provided 1 answer
Dr. David Rosenthal answered

Specializes in Allergy and Immunology

Relax and get test: Most likely a third generation combined antigen antibody HIV test would detect HIV when performed at 42 days after the exposure, but getting retested at 12 weeks is also advisable to be certain.

Answered 6/10/2014

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