Focusing on Pulmonary Transplantation and Infectious Diseases. BOS Phenotypes and Classification, Exploring the Respiratory Mycobiome, Management of Nontuberculous Mycobacteria in Lung Tx, Pre-transplant Vaccination, Cytomegalovirus Prevention Strategies, and Fecal Transplants in Solid Organ Tx are topics covered in this issue. Special announcement on the International Traveling Scholarships.