list one key similarity and one key difference between a vaccine and the pathogen it protects against

The virus is considered to be are living item since they have hereditary material dnas or rnas. they can imitate and change. they respond to boosts, for example, radiation, chemicals, and warmth. they have antigenic properties. they are proficient to duplicate with a same hereditary constituent.

Very hard to understand

Ibelieve the answer is c.