Pope Francis has thanked the hospital and healthcare workers at the Gemelli Hospital in Rome for their care in the Angelus prayer on Sunday, as he remains in hospital receiving treatment for bronchitis.

Pope Francis had another quiet night in Rome's Gemelli Hospital after being admitted on Friday with breathing difficulties due to bronchitis, sources said on Tuesday. The Vatican said on Monday that the pope's therapy had had to change due to the complex clinical picture of his condition.

Pope Francis, who is receiving treatment in hospital for a respiratory tract infection, will not appear in public on Sunday to lead his usual weekly prayer with pilgrims, the Vatican said.