PARIS — New results from a large prospective trial give a better idea of how a blood test that can detect multiple cancers performs in a "real-life" setting. "As this technology develops, people must ...

False positives in these types of tests, which identify immune markers rather than the disease-causing bacteria, can happen for a few reasons.

Several conditions can cause a false-positive syphilis test result. However, healthcare professionals often use two different tests to diagnose a person with syphilis. Syphilis is a sexually ...