![Mark Buchanan of Roopville, Georgia, is wheeled down a hallway by his wife, Melissa, at the University of Florida Health Shands Hospital in January. Buchanan required a double-lung transplant to save his life after contracting COVID-19.](https://www.gpb.org/sites/default/files/styles/flexheight/public/2021-04/buchananlung_jsj40750.jpg?itok=jmfCwUfU)
Caption
Mark Buchanan of Roopville, Georgia, is wheeled down a hallway by his wife, Melissa, at the University of Florida Health Shands Hospital in January. Buchanan required a double-lung transplant to save his life after contracting COVID-19.
Credit: Jesse S. Jones/University of Florida Health