Pope Francis has again fallen ill. The Vatican announced on Saturday that the 87-year-old had cancelled all audiences planned for the day due to a “mild flu.” The health of the pope, who has been in office since 2013, has been problematic for some time. In recent months, the head of more than 1.4 billion Catholics worldwide has suffered from inflammation of the respiratory tract on several occasions. Last year, the pontiff was hospitalized twice in a clinic in Rome, including for abdominal surgery. He often uses a wheelchair during public appearances due to a knee condition. On Saturday next w…