During the Mass in St. Peter's Square, the giant banner bearing Francis' papal coat of arms fluttered from the loggia of the basilica above. Even while in the hospital, Francis is very much still the pope and in charge of the Catholic Church.
Francis has been using high flows of supplemental oxygen to help him breathe during the day and a noninvasive mechanical ventilation mask at night.
Francis was hospitalized Feb. 14 for what was then just a bad case of bronchitis. The infection progressed into a complex respiratory tract infection and double pneumonia that has sidelined Francis for the longest period of his 12-year papacy and raised questions about the future.