1. What does an HIV blood test reveal

A. Whether a person has aids
B. Whether antibodies for the virus are present
C. Whether T cells for the virus are present
D. Whether a person has engaged in risky behavior

2. When is a person considered HIV-positive
A. After having a blood test and diagnosed with AIDS
B. After having been exposed to HIV but not tested
C. After showing symptoms of AIDS but not tested
D. After having a blood test and HIV antibodies are detected