Even in this time of uncertainty, Mayo Clinic is a place for hope and healing — and we're delivering the care you need. Mayo Clinic follows carefully designed, rigorously enforced safety precautions for anyone who needs face-to-face care. We're safely treating all patients, both in person and through virtual visits, in adherence with federal and state executive orders and guidance. David B. Erasmus, M.D., is a pulmonologist and critical care specialist with the Lung Transplant Program in the Transplant Center at Mayo Clinic in Jacksonville, FL. His primary clinical interests include lung transplantation and interventional bronchoscopy.