A newly developed saliva-based test could give physicians and emergency-care technicians a quicker and easier way to diagnose heart attacks. The nano-biochip test, developed at the University of Texas at Austin and supported by the National...

A saliva test could help speed up detection of human immmunodeficiency virus, or HIV, Canadian researchers say. The McGill University Health Center study, published in PLoS Medicine, demonstrated the efficacy of rapid saliva tests for all subtypes...