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Human Health And Disease

Question
CBSEENBI12047597
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Short-lived immunity acquired from mother to foetus across placenta or through mother's milk to the infant is categorised as

  • cellular immunity

  • innate non-specific immunity

  • active immunity

  • passive immunity

Solution

D.

passive immunity

Passive immunity is the one in which the individual acquires pre-formed antibodies from outside and so is the case of the immunity that foetus/ infant/ acquires from mother via placenta or mother's milk.

Cellular immunity is a protective immune process that involves the activation of phagocytes, antigen-sensitized cytotoxic T cells and the release of cytokines and chemokines in response to antigen. 

Innate immunity refers to nonspecific defense mechanisms that come into play immediately or within hours of an antigen's appearance in the body. 

Active immunity is the immunity which results from the production of antibodies by the immune system in response to the presence of an antigen.

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