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Why does a doctor administer tetanus ant...

Why does a doctor administer tetanus antitoxin and not a tetanus vaccine to a child injured in a roadside accident with a bleeding wound? Explain.

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Tetanus antitoxin contains readymade immunoglobulins which provide immediately required artificial and passive immunity so that the person may show immediate immune response.
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Why does a doctor administer tetanus antitoxin and not a tetanus vaccine of a child injured in a roadside accident with a bleeding wound? Explain.

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