31.   The other test detects viral antigen, which is a part of the virus that induces the body to produce antibodies against it.

32.   The PSA test detects a rise in the level of an antigen, or protein, produced by the prostate.

33.   The question, he said, is whether the screening tests are detecting cancers.

34.   The standard test detects antibodies that the immune system produces in response to HIV infection, and has been enormously successful in preventing transfusion-associated AIDS.

35.   The standard HIV test detects proteins known as antibodies that are usually formed about six weeks after the virus enters the body.

36.   The test detects the presence of Heliobacter Pylori, a bacteria believed to be the primary cause of peptic ulcers, raw areas in the gastrointestinal tract.

37.   The tests can detect cancer, but the treatment can bring side effects like impotence and incontinence.

38.   The test can detect as little as one organism of chlamydia, the most common sexually transmitted disease in the U.S., the Gen-Probe said.

39.   The test can theoretically detect a single microbe in a sample.

40.   The test detects the presence of Heliobacter Pylori, a bacteria believed to be the primary cause of peptic ulcers, holes in the lining of the stomach.