Researchers in the Greene Infectious Disease Laboratory at Columbia University Mailman School of Public Health and their colleagues in the WHO Global Laboratory Network have developed a new tool for pathogen surveillance and discovery?he GreeneChip System. The GreeneChip is the first tool to provide comprehensive, differential diagnosis of infectious diseases, including those caused by viruses, bacteria, fungi, or parasites. In addition, it is the first tool that can be used on a wide variety of samples, including tissue, blood, urine, and stool, allowing for the rapid identification of pathogens in a variety of laboratory and clinical settings. >>> Discuss This Story