The correct answer is: The viral genome mutates very quickly.
This rapid mutation makes it challenging to create a vaccine that remains effective against the various strains of viruses that cause the common cold.
Why is it difficult to create a vaccine against a common cold? (1 point)
It is impossible to create a vaccine against illnesses caused by proviruses.
Vaccines are only effective against bacterial infections.
Vaccines are unnecessary because antibiotics are an effective treatment.
The viral genome mutates very quickly.
1 answer