In light of Pope Francis’ pneumonia diagnosis, Dr. Leana Wen explains why older adults are especially at risk for serious ...

The Vatican says Pope Francis’ respiratory tract infection is presenting a “complex clinical picture” that will require ...

The 88-year-old pope was first admitted to the Policlinico Agostino Gemelli hospital on Friday for tests and bronchitis treatment after reports that he had struggled to speak during public appearances ...

However, if left untreated, it can cause a weakened immune system or acquired immune deficiency syndrome (AIDS). Some people may not develop any symptoms after contracting HIV and could remain ...