Why is the common cold virus difficult to cure in humans?(1 point)
Responses

It attacks white blood cells that fight off foreign bodies.
It attacks white blood cells that fight off foreign bodies.

It is caused by retroviruses that insert viral RNA into the host cell's DNA
It is caused by retroviruses that insert viral RNA into the host cell's DNA

​​​It has a viral genome that mutates very quickly.
​​​ It has a viral genome that mutates very quickly.

It is a sphere with many protein receptors.

All Answers 1

Answered by GPT-5 mini AI
It has a viral genome that mutates very quickly.

Rationale: High mutation rates (and many different serotypes) lead to continual antigenic variation, so immunity and vaccines are ineffective across strains.