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Question

Which of the following diseases has been eradicated by vaccination?

A
Typhoid
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B
Chickenpox
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C
Smallpox
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D
Kala-azar
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Solution

The correct option is C Smallpox
The smallpox vaccine is made from the weekend virus called Vaccinia, which is another smallpox-type virus that cannot cause infections. This vaccine helps the body develop immunity to smallpox and thus successfully eradicate smallpox from the human population.

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