Which one of the following disease is caused by virus?
A
Malaria
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B
Polio
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C
Plague
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D
Tuberculosis
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Solution
The correct option is D Polio Polio is an infectious disease caused by the poliovirus which attacks the nervous system. Children younger than 5 years old are more likely to contract the virus than another age group. Poliovirus is usually spread from person to person through infected faecal matter entering the mouth. It may also be spread by food or water containing human faeces. Malaria is caused by the Plasmodium parasite. The plague is a serious bacterial infection that is caused by a bacterial strain called Yersinia pestis. Tuberculosis is an infectious disease usually caused by the bacterium Mycobacterium tuberculosis.