der doc ... I apologize for the umpteenth time I post a question in this forum, I hope one among this forum can help me to calm my mind, 1. I do HIV ELISA test using VIDAS test equipment and bio merieuox in day 77 and the results are NON reaktive, but there is a unit number Tv = 0.003, so what is the purpose of the unit numbers, 2. whether the test at 77 days (11 weeks) is strong enough to prove that I am HIV negative