Answer:
Vaccination promotion is necessary because many children and adults are not vaccinated for preventable diseases.
Explanation:
Vaccination consists of the administration of biological preparations, called vaccines, in order to prevent infection or complications due to infectious diseases.
The importance of promoting vaccination is to be able to carry it out in people, children and adults, who have not yet received vaccines. The objective is to prevent these people from acquiring preventable diseases.
The other options are not correct because: