Which of the following disease is caused by a virus?

Leprosy

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Polio

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Inherited deafness

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Pneumonia

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Solution

The correct option is B Polio
A disease can be inherited from parents or acquired from the environment. Acquired disease are mostly caused due to microbes. Disease causing microbes are known as pathogens. Virus, bacteria, fungi, etc., are example of pathogens. Polio is caused due to polio virus, leprosy and pneumonia are caused due to bacteria. But, inherited deafness is not caused by any pathoen but it is inherited from parents.

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