Question

Common cold differs from pneumonia in, that

• A. Pneumonia is a communicable disease, whereas, the common cold is a nutritional deficiency disease.
• B. Pneumonia can be prevented by a live attenuated bacterial vaccine, whereas, the common cold has no effective vaccine.
• C. Pneumonia is caused by a virus while the common cold is caused by the bacterium Haemophilus influenzae.
• D. Pneumonia pathogen infects alveoli, whereas, the common cold affects nose and respiratory passage but not the lungs.

Answer 1

The correct option is D Pneumonia pathogen infects alveoli, whereas, the common cold affects nose and respiratory passage but not the lungs.

• The common cold is a viral disease, which is caused by a viral infection of the upper respiratory tract (nose and throat), whereas, pneumonia is an inflammatory condition of the lung affecting primarily the microscopic air sacs known as alveoli.
  
• It is usually caused by infection with viruses or bacteria and less commonly other microorganisms. Typical symptoms include a cough, chest pain, fever, and difficulty breathing.
  Hence, Option D is correct.