Pneumonia is a lung infection and/or inflammation of the air sacs of one or both lungs. Bacteria, viruses, and fungi can ...

Crackles, smoke, and the ever-changing colors of a bonfire's flame are unmistakably beautiful. Watching, listening to, and ...

50 – 80 years of age Have a 20 pack-year history of smoking (1 pack a day for 20 years or 2 packs a day for 10 years) Are a current smoker or have quit within the last 15 years If you meet the ...