The Vatican said Pope Francis was back on non-invasive ventilation, in another setback to his battle to fight pneumonia Pope Francis suffered two new breathing attacks on Monday, requiring two separate bronchoscopies,

Pope Francis experienced two respiratory episodes Monday caused by a buildup of mucus, another setback for the Catholic Church leader as he nears his third week of hospitalization. The Holy See Press Office said the breathing setbacks were created by a buildup of mucus in the pope’s lungs and a bronchial spasm (a sudden tightening of airway muscles making breathing difficult).