The symptoms of common cold are:
A. Affect the nose and respiratory passages but not the lungs
B. Affect the alveoli of the lungs
C. Nasal congestion and discharge
D. Fever, chills, sore throat, hoarseness and headache
Choose the correct answer from the options given below:
Answer & explanation
Correct answer: option 3
The correct answer is Option (3) → A and C only
The common cold is caused by rhino viruses. It is one of the most infectious diseases of humans. It spreads through droplets from the cough or sneeze of an infected person, or through objects such as pens, books and cups.
A. Affect the nose and respiratory passages but not the lungs — Correct. Rhino viruses infect the nose and the respiratory passage, but not the lungs.
B. Affect the alveoli of the lungs — Incorrect. Infection of the alveoli (the air sacs of the lungs) is seen in pneumonia, which is caused by bacteria such as Streptococcus pneumoniae and Haemophilus influenzae.
C. Nasal congestion and discharge — Correct. A blocked and running nose is the main symptom of the common cold.
D. Fever, chills, sore throat, hoarseness and headache — Incorrect. This list mixes two diseases. Fever and chills are symptoms of pneumonia. The common cold is marked by nasal congestion and discharge, sore throat, hoarseness, cough, headache and tiredness, which usually last for 3-7 days.
NCERT Extract:
Common Diseases in Humans – …
