Dr. Segre's laboratory utilizes high-throughput sequencing and develops algorithms to study the microbial diversity of human skin in both health and disease states, with a focus on eczema and other microbial-associated infections. Dr. Segre published the first topographical maps of human skin bacterial and fungal diversity. Dr. Segre's laboratory also develops genomic tools to track hospital-acquired infections of multi-drug resistant organisms, including the NIH's recent Klebsiella pneumoniae outbreak.