How are Catholics around the world responding to Pope Francis’s health update? Pope Francis, the 88-year-old leader of the Catholic Church, is fighting a serious health battle as he remains hospitalized in Rome.

The 88-year-old, who had part of one lung removed as a young man, experienced two acute respiratory crises on Monday.

Pope Francis suffered two episodes of "acute respiratory insufficiency" on Monday, the Vatican said, in another setback for the 88-year-old pontiff as he continues to battle double pneumonia. Francis has been in Rome's Gemelli Hospital since February 14,