ROME (AP) — Pope Francis continued to improve from double pneumonia Thursday, the Vatican said, working from his hospital room and going to his private chapel to pray, though doctors said he needs more days of “clinical stability” before they revise their guarded prognosis.

Pope Francis continued to improve from double pneumonia on Thursday, the Vatican reported, as he worked from his hospital room and visited his private chapel to pray. However, doctors stressed that he still needs several more days of clinical stability before they can reconsider their guarded prognosis.

Pope Francis, who is being treated in hospital for double pneumonia, slept well overnight and is resting, the Vatican said in a brief statement on Thursday. The Vatican gave a largely upbeat assessment of his health on Wednesday evening,