After unprotected sex I had 4th gen hiv duo test at 6th 8th 10th and 12th week do you consider it as conclusive? Do smoking affect 4th gen test? Hav you ever seen anybody tested negative at 12th week and after few days he turned positive?

Suggestions offered by doctors on Lybrate are of advisory nature i.e., for educational and informational purposes only. Content posted on, created for, or compiled by Lybrate is not intended or designed to replace your doctor's independent judgment about any symptom, condition, or the appropriateness or risks of a procedure or treatment for a given person.