IMMUNOLOGY

HYPERSENSITIVITY

VACCINATION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
There are more than 200 strains of viruses that cause the common cold.
A
True
B
False
C
Either A or B
D
None of the above
Explanation: 

Detailed explanation-1: -Influenza (flu) and the common cold are both contagious respiratory illnesses, but they are caused by different viruses. Flu is caused by influenza viruses only, whereas the common cold can be caused by a number of different viruses, including rhinoviruses, parainfluenza, and seasonal coronaviruses.

Detailed explanation-2: -Although many types of viruses can cause a common cold, rhinoviruses are the most common cause. A cold virus enters your body through your mouth, eyes or nose. The virus can spread through droplets in the air when someone who is sick coughs, sneezes or talks.

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