Human Health And Diseases Ques 47

47. Common cold differs from pneumonia in that:

[2012]

(a) Pneumonia is a communicable disease whereas the common cold is a viral infection.

(b) Pneumonia can be prevented by a live attenuated viral vaccine whereas the common cold has no effective vaccine.

(c) Pneumonia is caused by a virus while the common cold is caused by a virus, not a bacterium.

(d) Pneumonia pathogen infects alveoli whereas the common cold affects nose and respiratory passage but not the lungs.

Show Answer

Answer : d

Hints & Solutions

(d) Common cold is the most infectious viral disease caused by rhinoviruses which is transmitted through inhalation of droplets from infected person or through contaminated objects. Pneumonia is a bacterial disease caused by Streptococcus pneumoniae and Haemophillus influenzae. This serious disease of lungs is spread by sputum of the patient.