Staphylococcus: Staphylococcus aureus is a major cause of skin and soft tissue infection (SSTI). Military personnel in congregate settings (e.g., training, deployment) are at increased risk for S. aureus colonization and SSTI. For a 7-month period in 2016, an observational cohort study of S. aureus colonization and SSTI among U.S. Navy submariners was conducted.