The PAINTS study is a stepped-wedge cluster randomized trial that will compare standard care to an intervention that includes nasal povidone-iodine at each hemodialysis session to determine whether nasal povidone-iodine prevents infections. The nasal povidone-iodine will be donated by 3M. This formulation of nasal povidone-iodine was developed under the Tentative Final Monograph for Health-Care Antiseptic Drug Products 21 CFR Parts 333 and 369 (Docket # 75N-183H), Federal Register Volume 59, Number 116, Friday, June 17, 1994, Proposed Rules. However, the product need not be controlled like a pharmaceutical drug. The product may be stored and controlled similarly to an iodine or alcohol skin preparation product.