Which of the following disease results in Paralysis due to viral attack on C.N.S:
Correct answer: D. Polio
- A. Measles
- B. Herpes simplex
- C. Hepatitis
- D. Polio
Explanation
Poliovirus attacks motor neurons in the central nervous system and can cause paralysis. Measles and hepatitis primarily produce other systemic effects, while herpes simplex can affect the nervous system but is not the classic viral cause of paralytic disease in this list.
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About Viruses
Viruses are acellular infectious particles made of genetic material enclosed by a protein capsid, sometimes with a lipid envelope. Their replication depends on a host cell and may follow lytic or lysogenic cycles, so viral structure and reproduction differ fundamentally from those of cellular organisms such as bacteria.
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