Question

Why are we prone to common cold infections?

• A. Because the weather is not the same always
• B. Because the virus has many types based on different coat proteins
• C. Because the survival of viruses is easy in different weather conditions
• D. Because all viruses have the same coat proteins

Answer 1

The correct option is B Because the virus has many types based on different coat proteins

There are 99 known types of Rhinoviruses which differ from each other in the type of coat proteins they produce. This is probably the reason why we are prone to repeated incidents of common cold, on an average 2-3 times a year.