There are several different kinds of immunity, each providing resistance in different ways to different pathogens. Which indicates there is a natural immunity?
A) Innate resistance to a specific antigen or toxin
B) Derived from actual exposure to the specific infectious agent
C) When the body produces its own antibodies against an antigen as a result of infection with the pathogen or through a vaccine
D) Temporary resistance that has been donated to the host through transfusions of plasma, proteins, immunoglobulin, or antitoxins
Ans: A
Natural immunity is an innate resistance to a specific antigen or toxin. Acquired immunity is derived from actual exposure to the specific infectious agent. Active acquired immunity is when the body produces its own antibodies against an antigen as a result of infection with the pathogen or through a vaccine. Passive acquired immunity is temporary resistance that has been donated to the host through transfusions of plasma, proteins, immunoglobulin, or antitoxins.
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