The correct response is:
It has a viral genome that mutates very quickly.
This rapid mutation makes it challenging to develop a vaccine because the virus can change so quickly that a vaccine may become ineffective shortly after it is developed.
Why is it difficult to produce a vaccine for the common cold in humans?(1 point)
Responses
It is a spherical-shaped virus with many protein receptors.
It is a spherical-shaped virus with many protein receptors.
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 attacks white blood cells that fight off foreign bodies.
1 answer