by Cathy Parkes December 18, 2019 Updated: May 05, 2021
Types of immunity: Active natural: Body produces antibodies in response to exposure to a live pathogen. Active artificial: Body produces antibodies in response to a vaccine. Passive natural: Antibodies are passed from the mom to her baby through the placenta and breastmilk. Passive artificial: Immunoglobuins are administered to an individual after exposure to a pathogen.
To learn more about the different types of immunity, check out our post on immune system.
Incidence vs. Prevalence:
Incidence is the number of NEW cases of disease/injury in a population during a period of time.
Prevalence is the number of ALL cases (new and pre-existing) of disease/injury in a population during a period of time