Vatican authorities said Monday that Pope Francis is suffering from a “polymicrobial respiratory tract infection.” Experts talk about what that means.

LONDON (AP) — Vatican authorities said Monday that Pope Francis has a complex infection in his respiratory system and will require more targeted drug treatment. Officials said the 88-year-old ...

LONDON (AP) — Vatican authorities said Monday that Pope Francis has a complex infection in his respiratory system and will require more targeted drug treatment. Officials said the 88-year-old ...