Pope Francis has developed pneumonia in both lungs, the Vatican said Tuesday, after new tests showed a further complication in the condition of the 88-year-old pontiff. The AP’s Nicole Winfield explains.

AP Explains: The Vatican says Pope Francis has developed bilateral pneumonia

Pope Francis has developed pneumonia in both lungs, the Vatican said Tuesday, after new tests showed a further complication in the condition of the 88-year-old pontiff. The AP’s Nicole Winfield explains.