He trained at the University of Alberta, completed post-doctoral studies at the University of Maryland, and held research positions at The Institute for Genome Research and University of Texas Southwestern Medical Center at Dallas. His laboratory focuses on the genome scale evolution, functional genomics and transcriptome analysis of enteric pathogens. Recent studies have focused on pathogen identification using high-throughput sequencing methodologies. He has published over 80 papers in reputed journals and serves on a number of Editorial Boards.