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Which of the following virus causes 'Chickenpox'?

AVariola Virus

BVaricella zoster

CHerpes simplex virus

DNone of the above

Answer:

B. Varicella zoster

Read Explanation:

Chickenpox is an infection caused by the varicella-zoster virus. It causes an itchy rash with small, fluid-filled blisters. Chickenpox is highly contagious to people who haven't had the disease or been vaccinated against it.


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The communicable disease that has been fully controlled by a national programme is :

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