I am very stressed. I am suffering back bone pain. Different types of blood test done but no result. MRI report d10 - d11 infected. Biopsy done one result after two months. Other three report was doubtful for me. Because I am treatment in Orthopaedic Dr. He said doubt it's Tuberculosis. Infection disease Dr. said She can't understand. Before Biopsy blood test was done which test name was "BLOOD BONE VIRUS SCREEN" and report was (Hiv = Negative, Hcv = Negative, Hbv = Negative). Already started tb medicines before 27 days. Sir my some query to you because I am already depressed. 1. Can I sure that I am Hiv negative? 2. What is BLOOD BONE VIRUS SCREEN test? Pl brief me sir?