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Question

Select the correct option to complete the analogy.
Colostrum : Natural passive immunity :: ATS : _____.

A
Natural passive immunity
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B
Artificial active immunity
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C
Artificial passive immunity
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D
Natural active immunity
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Solution

The correct option is C Artificial passive immunity
Naturally acquired passive immunity occurs during pregnancy, in which certain antibodies are passed from the maternal blood into the fetal bloodstream in the form of IgG. Antibodies are transferred from one person to another through natural means such as in prenatal and postnatal relationships between mother and child.
Colostrum is the first milk which a baby have from mother.

Artificial passive immunity is conferred by the injection of antibodies generated by a different person or animal, or artificially in the laboratory, into an individual. These antibody-containing preparations are termed as 'antisera and are used as a therapeutic treatment when there is a risk of some infections.
Anti tetanus serum is given as prophylaxis to the persons at the risk with infected wound, contaminated wound etc.

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