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Question

Biology Question on human health and disease

Common cold differs from pneumonia in that Pneumonia

A

Is communicable disease while common cold is deficiency disease

B

Can be prevented by live attenuated vaccine while common cold has no effective vaccine

C

Is caused by a virus while common cold is caused by bacterium Haemophilus influenzae

D

Infects alveoli while common cold affects nose and respiratory passage but not the lungs

Answer

Infects alveoli while common cold affects nose and respiratory passage but not the lungs

Explanation

Solution

Common cold or rhinitis is one of the most infectious diseases caused by Rhino viruses. It affects nose and respiratory passage but not lungs. It spreads by droplet infection or contaminated objects. Pneumonia, caused by bacteria Streptococcus pneumoniae and Haemophilus influenzae is a serious disease of lungs, in which fluid collects in the alveoli and bronchioles. The disease spreads by sputum of the patient.