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Pope Francis' medical situation is complex amid pneumonia diagnosis, Vatican says 01:22. Pope Francis has a complex infection in his respiratory system and will require more targeted drug ...

Your respiratory system includes your nose, sinuses, throat, and lungs -- the parts of your body that help you breathe. ... Mycobacterium avium complex (MAC).

Discover why illness causes bad breath through bacterial growth, dehydration, medications and body chemistry changes. Learn ...

LONDON — 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 pope is ...

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 ...

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 pope is suffering ...

LONDON — 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 pope is ...

Pope Francis’ respiratory tract infection is presenting a “complex clinical picture” that will require further hospitalization, the Vatican said Monday as concerns grew about the ...

Pope Francis is currently in hospital suffering from a complex infection in his respiratory system, prompting doctors to administer a more targeted treatment. Officials say the 88-year-old pontiff ...

Rome — Pope Francis' respiratory tract infection is presenting a "complex clinical picture" that will require further hospitalization, the Vatican said Monday as concern grew about the ...

Northwestern Medicine scientists have discovered that mitochondria are not necessary for the proliferation of specialized immune cells in the central nervous system, but do help those cells respond to ...