Examlex
Which of the following is correct?
Active Immunity
Active immunity refers to the immunity that develops after exposure to an antigen as a result of the immune response, which can occur naturally or through vaccination.
AIDS
Acquired immune deficiency syndrome. A secondary immune deficiency that develops as the result of infection by the HIV virus.
Measles
A highly contagious viral disease characterized by fever, cough, and a distinctive rash, affect primarily children.
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