Question

Brain fever is caused by
(a)Rhinovirus
(b)HTLV
(c)HIV
(d)Japanese encephalitis virus

Answer 1

Hint: Viruses are parasitic organisms that alter the genetic material of the host organisms to reproduce and increase the number of progenies. The virus that causes brain fever also has the same mechanism results as inflammation and meningitis.

Complete answer:
The infection in the brain known as Japanese encephalitis is due to the infection of the Japanese encephalitis virus. Brain fever infections do not show major symptoms, but some mild symptoms show inflammation of the brain by infected brain cells. In severe infection, symptoms are headache, nausea, occasional fever, intellectual disorders.

Additional Information: Rhinoviruses: These viruses are the reason for the flu and the common cold. They change their surface receptors occasionally which creates a problem for the immune system to recognize them.
HTLV: this group of viruses is a part of human which are capable of forming cancer in T cells known as the adult T-cell leukemia and demyelinating disorder known as HTLV-1
HIV: HIV stands for the human immune virus which causes Acquired ImmunoDeficiency Syndrome (AIDS).
So, the correct option is ‘Japanese encephalitis virus’.

Note: -Azidothymidine is an antiretroviral drug used to stop and treat AIDS. AIDS stands for Acquired Immunodeficiency syndrome and this drug is used to slow down the development of AIDS in patients infected with HIV.
-The B cells of the immune system recognize the viruses by the surface receptors present on the viruses. Through rapid mutation, rhinoviruses change this receptor which causes a common cold every time, and the body can't recognize it.
-As of now, there is no effective cure for HIV, which means the person who is infected with HIV has to carry it for their whole life, but with proper care HIV can be controlled, and the spreading of HIV to another person can be stopped.