What has Pope Francis been diagnosed with, and what does the Vatican's statement reveal about his condition?

According to the Vatican's statement, Pope Francis has been diagnosed with bilateral pneumonia (pneumonia affecting both lungs) following a CT scan of his chest performed in the afternoon. The diagnosis came after he had already spent four nights in the hospital being treated for a respiratory illness. Despite this serious condition, the Vatican reports that the Pope remains in good spirits, although the situation is concerning. This development represents a significant health challenge for the pontiff, who has been dealing with ongoing respiratory issues that have now progressed to affect both of his lungs.