Pope Francis presides over his weekly audience despite the flu that caused him to scrap a trip to Dubai, but asks an aide to deliver his reading for him. "We continue with the catechesis but I'm still not well with this flu, my voice isn't good. Monsignor Ciampanelli will be the one reading these notes," he tells the crowd assembled in the Paul VI hall in the Vatican. Francis, who had part of a lung removed when he was younger, was forced Tuesday to cancel his scheduled trip to key UN climate talks, following advice from his doctors. IMAGES AND SOUNDBITES