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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
‘HAART’ is suggested for the treatment of __________
(A) malaria
(B) cancer
(C) AIDS
(D) high chloesterol level
Write a short note on AIDS.
AIDS is not transmitted by contact with a patient’s clothes.
HIV-
AIDS-
Identify the correct statements from the following.
What is the causative agent of syphilis?
Which pathogen causes gonorrhoea?
AIDS is a sexually transmitted disease caused due to an infection by a ______
What are the benefits of using mechanical barriers during sexual act?
STDs can be considered as self-invited diseases. Comment.
Explain the principle on which the AIDS diagnostic test works.
Give two examples of sexually transmitted diseases.
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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?
The following is well-known abbreviation, which have been used in this chapter. Expand to its full form:
HIV
Which one of the following common sexually transmitted diseases is completely curable when detected early and treated properly?
Which of the following is classified as a Gram-negative bacterium that causes gonorrhoea?
Chlamydia trachomatis is often asymptomatic. Which symptom manifestations can occur when symptoms are present?
Which complication is specifically associated with untreated Chlamydia trachomatis infection?
Herpes Simplex Virus-2 (HSV-2) is transmitted through which routes?
Which antiviral medication is used for genital herpes, and what is its therapeutic action?
Which cell type does HIV primarily target for infection?
What does ART stand for, and what is its role in HIV management?
Which antibiotic effectively treats Trichomoniasis and is noted as completely curative?
Which barrier method reduces but does not completely eliminate the risk of STI transmission?
What does the Hepatitis B vaccine (3-dose course) provide?
