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Which type of immunity is transferred from a mother to her baby through breast milk?

A.

Active immunity

B.

Innate immunity

C.

Adaptive immunity

D.

Passive immunity

Answer and Explanation

The Correct Answer is D

Explanation: Passive immunity. Passive immunity is acquired when preformed antibodies are transferred from one individual to another. In this case, the mother's antibodies are transferred to her baby through breast milk, providing temporary protection against certain infections.

Incorrect choices:

a. Active immunity is acquired when the immune system is exposed to a pathogen or vaccination, leading to the production of memory cells and long-term protection.

b. Innate immunity is the body's first line of defense against infections and is not transferred from the mother to the baby but rather present from birth.

c. Adaptive immunity is another term for acquired immunity and involves the production of memory cells after exposure to a specific pathogen or vaccination. It is not transferred through breast milk.


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Related Questions

Correct Answer is D

Explanation

Explanation: Memory cells are a type of immune cell that are formed during the body's initial encounter with a pathogen. They "remember" the specific antigen of the pathogen and allow the immune system to respond more rapidly and effectively if the same pathogen is encountered again in the future. Memory cells are responsible for providing long-term immunity.

Incorrect choices:

a. Engulfing pathogens and foreign invaders is the role of phagocytes, such as macrophages and neutrophils.

b. Initiating the inflammatory response is carried out by various immune cells, including mast cells and basophils, as part of the innate immune response.

c. Producing antibodies in response to infection is the primary role of B cells in the immune system.

Correct Answer is C

Explanation

Explanation: Booster doses of vaccines are recommended to reinforce and extend the duration of immunity provided by the initial vaccination. They help the immune system to maintain a higher level of protection against the disease over time.

Incorrect choices:

a. The number of antibodies in the blood is not increased by booster doses; rather, the immune system's memory is reinforced.

b. Booster doses do not decrease the risk of adverse reactions; they are given to maintain immunity.

d. Booster doses do not reduce the number of required vaccine doses; they are additional doses given to maintain immunity over time.

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