HIV Infection Progression Quiz

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Questions and Answers

Which disease caused by Mycobacterium avium or Mycobacterium kansasii was identified in AIDS patients in Italy?

  • Cryptococcosis
  • Cytomegalovirus
  • Tuberculosis
  • Non-classical mycobacteriosis (correct)

What disease, known since the beginning of the 20th century, is not a frequent sarcoma but has a rapid evolution in AIDS patients?

  • Kaposi’s sarcoma (correct)
  • Isopsoriasis
  • Herpes simplex virus
  • Lymphoma

Which disease among young women is one of the main indicators to identify an AIDS patient nowadays?

  • Toxoplasmosis
  • Interstital pneumonia
  • Invasive cervical cancer (correct)
  • Lymphoma

What specific disease was cited by the professor in the movie 'Philadelphia' with Tom Hanks as an example of a problem faced by an AIDS patient?

<p>Kaposi’s sarcoma (B)</p> Signup and view all the answers

What is a crucial aspect to consider in understanding the origin of the HIV infection in a patient?

<p>Sexual history of the patient (C)</p> Signup and view all the answers

What was the outcome of the debate between NIH and Pasteur institute regarding the discovery of the virus?

<p>Both institutions were allowed to use the virus for branding. (C)</p> Signup and view all the answers

What factor contributed to the significant financial interest in the discovery of the virus?

<p>Potential applications of the virus for diagnostic tests. (D)</p> Signup and view all the answers

How is the classification of HIV infection based according to CD4 levels?

<p>It is classified into stages 1, 2, 3 based on CD4 levels and clinical findings. (B)</p> Signup and view all the answers

What CD4 level range indicates a higher risk of developing AIDS-defining diseases?

<p>Below 200 CD4 cells per unit volume of blood. (B)</p> Signup and view all the answers

Which pathology was listed as having one etiological agent causing death in the world?

<p>AIDS (C)</p> Signup and view all the answers

What is the usual clinical course of HIV infection immediately after an acute infection?

<p>Asymptomatic or mild symptoms with a CD4 drop to 600-700 and increased plasma viremia (C)</p> Signup and view all the answers

Which of the following viruses is NOT included in the viral diseases discussed by Professor Parisi in his program?

<p>HSV-1 (D)</p> Signup and view all the answers

What impact does the availability of drugs have on the study of the clinical course of HIV infection?

<p>It allows for a more accurate understanding of the disease progression (D)</p> Signup and view all the answers

During acute HIV infection, what happens to CD4 levels and plasma viremia within a few weeks?

<p>Plasma viremia drops to a plateau while CD4 levels increase (C)</p> Signup and view all the answers

What is the significance of a higher plateau of plasma viremia in predicting the evolution of the HIV infection?

<p>Predicts a faster evolution of the disease (D)</p> Signup and view all the answers

Which population group is particularly vulnerable to infections that can occur during pregnancy according to the program outlined by Professor Parisi?

<p>Pregnant women (C)</p> Signup and view all the answers

Why does a person diagnosed with HIV with certain infections become classified as an AIDS patient according to the text?

<p>They have infections characteristic of advanced HIV (C)</p> Signup and view all the answers

In what context did the historical excursus provided in the text begin?

<p>With 5 young men in Los Angeles presenting pneumonia-like symptoms (A)</p> Signup and view all the answers

What distinguishes the classification of HIV infection from AIDS according to the text?

<p>Type of opportunistic infections (C)</p> Signup and view all the answers

Why are patients who successfully reduce their HIV plasma viremia and increase CD4 count still classified as AIDS patients according to the text?

<p>They had opportunistic infections characteristic of AIDS (D)</p> Signup and view all the answers

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Study Notes

  • Discovery of the virus: HTLV-3 was discovered by Montagnier, leading to a debate with Gallo from NIH, eventually both institutions were allowed to use the virus for research.
  • Impact of AIDS: AIDS became the first pathology with a single etiological cause leading to death worldwide, surpassing diseases like malaria and tuberculosis.
  • HIV classification: HIV infection was classified based on CD4 levels and clinical findings, with CD4 levels under 200 defining an AIDS patient.
  • AIDS-related diseases in Italy: Toxoplasmosis, candidiasis, cryptococcosis, mycobacteriosis, cytomegalovirus, herpes simplex virus, PML, and Kaposi’s sarcoma were identified as AIDS-related diseases in Italy.
  • Update on AIDS-related diseases: Diseases like isopsoriasis, non-Hodgkin lymphoma, interstitial pneumonia, classical tuberculosis, and cervical cancer were later added to the list of AIDS-related diseases.
  • HIV transmission: The plateau of plasma viremia predicts disease progression, with higher viremia levels indicating faster disease evolution.
  • Natural history of HIV infection: After acute infection, CD4 levels drop and plasma viremia increases, leading to an asymptomatic phase before progressing to AIDS with specific symptoms and opportunistic diseases.

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