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Related Concept Videos

Retrovirus Life Cycles01:10

Retrovirus Life Cycles

Retroviruses have a single-stranded RNA genome that undergoes a special form of replication. Once the retrovirus has entered the host cell, an enzyme called reverse transcriptase synthesizes double-stranded DNA from the retroviral RNA genome. This DNA copy of the genome is then integrated into the host’s genome inside the nucleus via an enzyme called integrase. Consequently, the retroviral genome is transcribed into RNA whenever the host’s genome is transcribed, allowing the retrovirus to...
Immunodeficiency Diseases01:25

Immunodeficiency Diseases

Immunodeficiency disorders are conditions in which the immune system's ability to fight infectious disease and cancer is compromised or entirely absent. The immune system comprises a complex network of cells, tissues, and organs that work together to protect the body from potentially harmful invaders. When this system is deficient or not functioning properly, it leaves the body susceptible to infections, diseases, or other complications.
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Sexually Transmitted Infections01:26

Sexually Transmitted Infections

Sexually transmitted infections (STIs) are diseases transmitted primarily through unsafe sexual interactions. Bacteria, viruses, or parasites cause them and can result in severe health complications if untreated.ChlamydiaThe bacterium Chlamydia trachomatis is responsible for the disease Chlamydia, the most common STI in the United States. This peculiar pathogen requires human cells to reproduce, residing intracellularly. The initial infection often goes unnoticed because it typically does not...
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Pulmonary Tuberculosis I

Tuberculosis, often called TB, is a contagious illness primarily caused by Mycobacterium tuberculosis. It mainly affects the lung parenchyma but can also impact other body parts.
Causative Organism
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Cryptococcal Meningitis01:27

Cryptococcal Meningitis

Cryptococcal meningitis is a life-threatening opportunistic infection predominantly associated with HIV/AIDS, accounting for over 100,000 deaths annually worldwide. However, it also affects individuals with other forms of immunosuppression, including those undergoing immunosuppressive therapy, organ transplant recipients, patients with innate immunodeficiencies, and individuals with hematological disorders. The infection is caused mainly by Cryptococcus neoformans and Cryptococcus gattii,...
Inhibitors of Virion Maturation and Assembly01:19

Inhibitors of Virion Maturation and Assembly

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Related Experiment Video

Updated: Jun 29, 2026

Peptide-based Identification of Functional Motifs and their Binding Partners
14:28

Peptide-based Identification of Functional Motifs and their Binding Partners

Published on: July 1, 2013

HIV infection and AIDS

W T Shearer1

  • 1Department of Pediatrics, Baylor College of Medicine, Houston, Texas.

Primary Care
|September 12, 1998
PubMed
Summary
This summary is machine-generated.

Human immunodeficiency virus (HIV) infection is difficult to eradicate due to viral reservoirs in CD4+ T cells. Immune system activation is crucial for conquering HIV, with vaccines offering the best hope for prevention.

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Last Updated: Jun 29, 2026

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Area of Science:

  • Immunology
  • Virology
  • Infectious Diseases

Background:

  • Human immunodeficiency virus (HIV) poses a lethal threat through replication in CD4+ T lymphocytes.
  • Current combination antiretroviral therapy (cART) effectively reduces viral load but cannot eradicate the virus.
  • Viral sequestration in long-lived CD4+ T cells and privileged sites hinders complete HIV elimination.

Purpose of the Study:

  • To highlight the challenges in eradicating HIV despite effective viral load suppression.
  • To emphasize the necessity of immune system activation for HIV conquest.
  • To underscore the critical role of vaccines in preventing HIV infection.

Main Methods:

  • Review of current understanding of HIV pathogenesis and treatment limitations.
  • Analysis of viral reservoirs and immune evasion strategies.
  • Discussion of the potential of immune-based interventions.

Main Results:

  • HIV establishes persistent reservoirs, primarily in long-lived CD4+ T cells.
  • Antiretroviral therapy, while effective in controlling replication, does not eliminate these reservoirs.
  • Immune system activation is identified as a key requirement for viral eradication.

Conclusions:

  • Overcoming HIV requires strategies that target viral reservoirs and activate the immune system.
  • Preventive vaccines remain the most promising global strategy for controlling the HIV pandemic.