Thailand has begun a phase 1 clinical trial to test an H5N1 avian, or bird, influenza vaccine in a needle-free, nasal spray form. This trial is a result of international collaboration with health agencies around the world, including the U.S. Department of Health and Human Services’ Biomedical Advanced Research and Development Authority (BARDA). This is the first step in testing the new vaccine in humans. The study and data analysis is expected to be complete by May 2013.