i had symptoms Swollen lymph nodes,Diarrhea,Weight loss(20 paund in one month), unexplained fatigue, white tuonge. get test for antiybody after the the smptoms start by 5 week became neg. my risk is oral unprotact sex. i want for how long take the antybody to be faund in blood by the test after the symptoms start. i test like 16 week after i had the sex. thanks