The Vatican says Pope Francis' respiratory tract infection is presenting a "complex clinical picture" that will require further hospitalization.

The Vatican said Monday that Pope Francis’ respiratory tract infection is presenting a “complex clinical picture” that will require further hospitalization.

Pope Francis was hospitalized Friday after a weeklong bout of bronchitis worsened and was receiving drug therapy for a respiratory tract infection, the Vatican said. It was the latest setback to the 88-year-old's pontiff's health that forced him to cancel his agenda through Monday at least.

Pope Francis was hospitalized Friday with a mild fever and a respiratory tract infection, according to the Vatican. His health has forced him to cancel his scheduled events through Monday. Vatican spokesman Matteo Bruni said that the pope is in "good spirits" amid the health issues,

The Vatican says Pope Francis’ respiratory tract infection is presenting a “complex clinical picture” that will require further hospitalization

Pope Francis’ respiratory infection is presenting a “complex clinical picture” that will require further hospitalization, the Vatican said Monday, as concerns grew about the increasingly frail health of the 88-year-old pontiff.

The Vatican says Pope Francis’ respiratory tract infection is presenting a “complex clinical picture” that will require further hospitalization

Vatican authorities said Monday that Pope Francis has a complex infection in his respiratory system and will require more targeted drug treatment. Here's what to know.

What is a polymicrobial respiratory tract infection? Essentially, it means there’s a mix of bacteria, viruses, fungi, or parasites growing in someone’s lungs. "Often times, pe

The pope, 88, was diagnosed with a polymicrobial infection after he was hospitalized in Rome on Friday for bronchitis.

The Vatican says Pope Francis slept well during a quiet first night in the hospital after being admitted with a respiratory tract infection.