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

Pope Francis is being treated with supplemental oxygen to assist him with breathing, the Vatican said Tuesday, a day after he ...

Pope Francis suffered two episodes of acute respiratory failure Monday, the Vatican said, a fresh setback in the worst health ...

ROME and LONDON -- Pope Francis suffered two episodes of "acute respiratory failure" on Monday, the Vatican said. The ...

Pope Francis suffered two episodes of acute respiratory insufficiency and went back on a ventilator as he remains ...

Forensic pathologist Dr. Michael Baden shared his theory on the "unusual" circumstances that may have led to the deaths of ...

The pope, 88, suffered two episodes of "acute respiratory failure" on Monday. ROME and LONDON -- Pope Francis "slept all night" following Monday's medical intervention amid two episodes of "acute ...

Pope Francis is alert after suffering two episodes of "acute respiratory failure" on Monday afternoon, the Vatican has said.

Pope Francis, hospitalized for more than two weeks with pneumonia in both lungs, suffered two acute respiratory failures, requiring intervention, the Vatican says.

Pope Francis suffered two episodes of “acute respiratory insufficiency” on Monday, according to a statement from the Vatican, as the Catholic Church leader continues to fight ...

ROME -- Pope Francis' condition appeared on Tuesday morning to stabilize after Monday's medical intervention amid two episodes of "acute respiratory failure," Vatican sources told ABC News.

The Holy Father was admitted to Rome’s Gemelli Hospital on Feb. 14 and has since been treated for respiratory infections, ...