Atopic dermatitis (eczema) is a skin inflammation disorder that affects nearly 20% of people. The causes are unknown, but it has been associated with changes in the human skin microbiome. Dr. Julie Segre is Chief of the Translational and Functional Genomics Branch at the NHGRI, in Bethesda, MD. She discusses how NGS is used to study the human skin microbiome and eczema.