PORTLAND, Ore. — A new technology offers advance warning of the ability of a virus to infect humans. The technique could help stem the spread of bird flu, according to the inventors of glycan microarray technology. The Consortium for Functional Glycomics, a project of the National Institute of Health's National Institute of General Medical Sciences, is making the technology widely available to researchers for free. The microarray can pinpoint pathogens in a few hours that can infect humans. "Its like any other medical microarray, but instead of depositing little spots of DNA, we put down carbohydrates called glycans which virus...