Which of the following types of immunity does an infant receive when given the MMR injection?

Artificial, active

Explanation

•Artificially acquired, active immunity results from the use of ingested or injected vaccines, medically altered substances, which stimulate the immune system to produce antibodies.

•Naturally acquired, active immunity occurs when antibodies develop after natural exposure to a pathogen.

•Naturally acquired, passive immunity occurs when antibodies are directly received through the placenta or breast milk. (In passive immunity, the antibodies are given, not developed by that patient.)

•Artificially acquired, passive immunity results when antibodies are artificially delivered to the body such as with blood transfusions. (In passive immunity, the antibodies are given, not developed by that patient.)

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