1 Section of Pulmonary, Critical Care, and Sleep Medicine, Department of Internal Medicine and Microbial Pathogenesis, Center of Pulmonary Infection Research and Treatment, Yale University, 300 Cedar Street, TAC S441-D, New Haven, CT 06513, USA. Electronic address: charles.delacruz@yale.edu.
2 676 North St. Clair Street, Arkes 14-045, Chicago, IL 60611, USA; Northwestern University Feinberg School of Medicine, McGaw Pavilion Suite M-300, 240 East Huron, Chicago, IL 60611, USA. Electronic address: r-wunderink@northwestern.edu.