Immunological memory develops in early childhood to protect us from diseases in

Immunological memory develops in early childhood to protect us from diseases in adulthood. This can be acquired by both active and passive immunity.
Visit the CDC website regarding vaccines at: https://www.cdc.gov/vaccines/schedules/hcp/imz/child-adolescent.html
Select a vaccine to use for your discussion post and answer the following related to your vaccine choice:
Describe the immunity whether active or passive, is it natural or artificial? Why?
What is the routine time frame for the immunity? (i.e. series, booster, catch-up)
What body system could it affect? Why and how? (i.e. stress related response)