Vaccination against smallpox means the introduction into our body of

Leucocytes obtained from an animal

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Antibodies produced in other animals

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Antibodies

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Actual weakened germs or attenuated smallpox virus

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Solution

The correct option is D Actual weakened germs or attenuated smallpox virus
Smallpox vaccine is produced from the artificially attenuated smallpox virus. The administration of this vaccine ios called as vaccination against smallpox. As on administration of this vaccine, our body develops immunity against the particular virus.
Thus, the correct answer is option D.

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Similar questions

Statement 1: Smallpox vaccination was developed by Edward jenner

Statement 2: It was isolated from a cow suffering from smallpox

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