Which one of the following diseases caused by enveloped RNA virus and spread in epidemic form?
Correct answer: A. Influenza
- A. Influenza
- B. Herpes Simplex
- C. Polio
- D. Smallpox
Explanation
[A] Influenza is RNA based virus and enveloped also[B] Herpes is not caused by Enveloped RNA virus[C] Polio is caused by non-enveloped RNA virus[D] Smallpox not cause by RNA virus but by various virus
This question appeared on the UHS MDCAT 2010 paper, which you can sit online with every answer explained.
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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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