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:
- AAutoimmunity
- BPassive immunity
- CActive immunity
- DAcquired immunity
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What is an interferon?
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View SolutionPassive immunity is obtained through the introduction of which of the following?
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View SolutionExcept for the skin,other physical barriers that also help to prevent the entry of microorganisms are:
$I.$ Mucus coating of the epithelium lining the respiratory tract
$II.$ Gastrointestinal tract
$III.$ Urogenital tract
Choose the correct option.
$I.$ Mucus coating of the epithelium lining the respiratory tract
$II.$ Gastrointestinal tract
$III.$ Urogenital tract
Choose the correct option.
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View Solution$B$-lymphocytes produce an army of proteins in response to pathogens entering our body to fight them. These proteins are called.........
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View Solution$A$ - The vaccines generate memory $B$ and $T$ cells. $R$ - In vaccination,activated pathogens are introduced into the body.
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