Short lived immunity acquired from mother to foetus across placenta or through mother's milk to the infant is categorised as :
A
Active immunity
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B
Passive immunity
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C
Cellular immunity
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D
Innate non-specific immunity
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Solution
The correct option is B Passive immunity Short-lived immunity acquired from mother to fetus across the placenta or through mother's milk to the infant is defined as passive immunity. Active immunity is the immunity which results from the production of antibodies by the immune system in response to the presence of an antigen. Cellular immunity is a protective immune response that involves the activation of phagocytes, antigen-sensitized cytotoxic T cells and the release of cytokines and chemokines in response to antigen. Innate non-specific immunity is the initial immune reaction against foreign antigens via non-specific antibodies and immune cells.