Why is it difficult to create a vaccine against a common cold?(1 point)

Question

Responses

Vaccines are only effective against bacterial infections.
Vaccines are only effective against bacterial infections.

It is impossible to create a vaccine against illnesses caused by proviruses.
It is impossible to create a vaccine against illnesses caused by proviruses.

Vaccines are unnecessary because antibiotics are an effective treatment.
Vaccines are unnecessary because antibiotics are an effective treatment.

The viral genome mutates very quickly.

Answer 1

The viral genome mutates very quickly.