Question

as a child, you received an mmr immunization against measles, mumps, and rubella. what kind of immunity do you have against these diseases?
a natural active
b artificial active
c natural passive
d artificial passive

Explanation:

To determine the type of immunity, we analyze each option:

• Natural active immunity comes from natural infection. Since MMR is a vaccine (not natural infection), A is incorrect.
• Artificial active immunity is acquired through vaccines (like MMR), which stimulate the immune system to produce antibodies. This matches the scenario.
• Natural passive immunity is from maternal antibodies (e.g., breast milk), so C is incorrect.
• Artificial passive immunity involves receiving pre - formed antibodies (e.g., immunoglobulin therapy), not a vaccine, so D is incorrect.

Answer:

B. Artificial active