The yellowish fluid "colostrum" secreted by mammary glands of the mother during the initial days of lactation has abundant antibodies (IgA) to protect the infant. This type of immunity is called as:
Passive immunity
Active immunity
Acquired immunity
Autoimmunity
'The yellowish fluid colostrum secreted by mother during the initial days of lactation has abundant antibodies (IgA) to protect the infant'. Since ready-made antibodies are directly transferred to the infant, this is explicitly cited as an example of 'passive immunity'
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