Pope Francis has apparently shown "slight improvement" and is responding well to ongoing oxygen therapy, according to a statement from the Vatican. The 88-year-old pontiff has been in the hospital since Feb. 14, when he was admitted for respiratory issues that were later found to be bilateral pneumonia.Doctors are keeping the pope’s prognosis under wraps as they continue to evaluate his condition.On Thursday, the pope recorded a message thanking those who had been praying for his recovery. The recording was "clearly an effort for him," Vatican sources said, pointing out that the noise from the pope’s oxygen machine could be heard
