Innate immunity
Is present before any exposure to pathogens and is effective from the time of birth
Involves nonspecific responses to pathogens
Acquired immunity, also called adaptive immunity
Develops only after exposure to inducing agents such as microbes, toxins, or other foreign substances
Involves a very specific response to pathogens
The Innate Immune system =
a general response to anything other than recognized “self cells”
The Acquird Immune System =
a specific counter-assault against a “known foreign” invader [previously recognized]