Pope Francis was a frequent visitor to Rome long before he became pope. Now his favorite shops and artisans are pulling for him as he battles double pneumonia.

POPE FRANCIS REMAINS in a critical condition in hospital in Rome as he battles pneumonia in both lungs, but he had another “peaceful night”, the Vatican said in its latest update. “The pope passed a peaceful night and is resting,” said the Vatican in a morning update on the 13th day of Francis’s stay in Rome’s Gemelli hospital.

What does Pope Francis having "double pneumonia" mean? What should you look for in the elderly? How can you avoid getting pneumonia?