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Question

How many statements given below are the examples of "Naturally Acquired Passive Immunity".
A. In case of snake bites, the injection which is given to the patients, contain preformed antibodies against the snake venom.
B. The fetus recieves some antibodies from their mother through the placenta during pregnancy
C. Colostrum secreted by mother during the initial day of lactation has abundant antibodies to protect the infant.
D. 'ATS' (Anti-tetanus serum) provides temporary protection in case of injuries and burns

A
One
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B
Two
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C
Three
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D
Four
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Solution

The correct option is B Two
The foetus receives some antibodies from their mother through the placenta during pregnancy and colostrum secreted by mother during the initial days of lactation has abundant antibodies (IgA) to protect the infant. These are the two examples of naturally acquired passive immunity.
So, the correct option is 'two'

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