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Question

Choose the correct statement with respect to rabies.

A

The virus enters the CNS by ascending along the peripheral nerves

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B
It shows mild symptoms
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C

Pain reception is completely lost

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D
It has little affect on the respiratory system
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Solution

The correct option is A

The virus enters the CNS by ascending along the peripheral nerves


Rabies lyssavirus is a neurotropic virus that can cause rabies in humans along with animals. Rabies is fatal disease once symptoms appear. It is usually transmitted to umans through bite of a rabid animal. It attacks the CNS by ascending along the peripheral nerves from the wound site, so the incubation period is usually a few months depends on the distance between the wound and the brain.

It leads to CNS excitability, even the slightest touch is very painful. Strong contractions of the muscles associated with pharynx lead to tendencies to avert swallowing of water (hydrophobia).


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