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

The viral genome mutates very quickly.

Vaccines are unnecessary because antibiotics are an effective treatment.

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

Vaccines are only effective against bacterial infections.

All Answers 1

Answered by GPT-5 mini AI
"The viral genome mutates very quickly."

Briefly: Many different viruses and many strains (especially rhinoviruses) cause the common cold and they change their surface proteins rapidly, so a single lasting vaccine is hard to produce.