Biology > human-welfare-biotech-and-ecology > Human Health And Disease

Pneumonia pathogen infects alveoli of the lungs, whereas Common cold affects nose and respiratory passage but not the lungs.

Pneumonia cannot be prevented by vaccine, whereas Common cold can be prevented by vaccine.

Pneumonia is caused by a virus, while the Common cold is caused by bacteria.

Pneumonia is a communicable disease, whereas Common cold is a non-communicable disease.