Vatican authorities said Monday that Pope Francis has a complex infection in his respiratory system and will require more targeted drug treatment. Here's what to know.

Pope Francis, 88, is in hospital with a polymicrobial respiratory tract infection.He had bronchitis, which may have led to ...

This can cause pulmonary edema—an excess build-up of fluid in the lungs that reduces oxygen flow, making it harder to breathe. Pulmonary edema causes symptoms such as shortness of breath ...

Advanced melanoma skin cancer means it has spread to another part of the body such as the liver, lungs or bone. Some people may not get symptoms when they have advanced cancer ... This is a network of ...

Tools and resources to help understand and manage a range of lung conditions. Sixth-grader Chloe Fernandez shares her story through her book, PCD Has Nothing On Me! See how WebMD’s 2017 Health ...