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प्रश्न
What is the mechanism by which the AIDS virus causes deficiency of immune system of the infected person?
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उत्तर
- After entering the body of an infected person, the AIDS virus enters the macrophage.
- Here, its RNA genome is copied into viral DNA by the reverse transcriptase enzyme, which then integrates into the cell’s DNA and directs the formation of virus particles in the infected cells.
- The macrophage continues to produce the virus and acts as a production factory for HIV.
- HIV enters the helper T-lymphocyte, replicates itself, and produces progeny viruses.
- The progeny viruses present in the blood attack other helper T-lymphocytes.
- This process is repeated again and again, as a result of which the number of T-lymphocytes in the infected person’s body continues to decrease.
- The patient continuously suffers from fever and diarrhoea; weight keeps decreasing, and the patient’s immunity becomes so low that he is unable to fight these types of infections.
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संबंधित प्रश्न
Write a short note on AIDS.
AIDS is caused by ______.
Give the preventive measures of AIDS.
AIDS is not transmitted by contact with a patient’s clothes.
Communicable: AIDS: Non communicable: ______.
What are the various routes by which transmission of human immunodeficiency virus takes place?
Which of the following is correct regarding HIV, hepatitis B, gonorrhoea and trichomoniasis?
Describe the major STDs and their symptoms.
Which pathogen causes gonorrhoea?
All of the following are modes of transmission of HIV, EXCEPT ______.
From the sexually transmitted diseases mentioned below, identify the one which does not specifically affect the sex organs ______.
The common means of transmission of AIDS is ______.
Which of the following STDs are not completely curable?
Which one is not a sexually transmitted disease?
Disease or infections which are transmitted through sexual intercourse are collectively called ______.
Which of the following is not a sexually transmitted disease?
Human Immunodeficiency Virus (HIV) was first isolated by ______.
Which of the following sexually transmitted diseases is NOT completely curable?
‘An HIV patient normally doesn't die of ‘AIDS’, but death is caused due to many other infections.’ Do you agree with the statement? Give explanatory reasons in support of your answer.
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Sapna has been diagnosed with an infection of the reproductive tract caused by bacteria. She experiences burning sensation during urination, pain around her genitalia and observes pus containing discharge. Her doctor tells her that this infection has an incubation period of two to five days but can be cured. |
What is the biological name of the causative agent of the disease Sapna is suffering from?
All STDs do not affect the genital organs. Justify the statement.
The following is well-known abbreviation, which have been used in this chapter. Expand to its full form:
AIDS
The following is well-known abbreviation, which have been used in this chapter. Expand to its full form:
HIV
Chlamydia trachomatis is classified as which type of bacterium based on its cellular characteristics?
Which STI is transmitted through sexual contact and mother-to-newborn transmission during childbirth?
The treatment of syphilis relies primarily on which antibiotic?
Herpes Simplex Virus-2 (HSV-2) is transmitted through which routes?
What are the characteristic symptoms of Hepatitis B infection?
Which antibiotic effectively treats Trichomoniasis and is noted as completely curative?
What does the Hepatitis B vaccine (3-dose course) provide?
