Why is the common cold virus so difficult to cure in humans?(1 point)
Responses
It is caused by a special type of virus called a retrovirus
It is caused by a special type of virus called a retrovirus
It attacks white blood cells that fight off foreign bodies
It attacks white blood cells that fight off foreign bodies
It possesses a viral genome that mutates very quickly
It possesses a viral genome that mutates very quickly
It is a spherical-shaped virus with many protein receptors