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Related Concept Videos

Immune Response Against Viral Pathogens01:29

Immune Response Against Viral Pathogens

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The immune system's response to viral infections is a complex and coordinated process involving natural killer (NK) cells, T cell-mediated responses, and antibody-mediated responses.
NK Cells
NK cells are a crucial part of our innate immune system, acting as the first line of defense against viral infections. These cells can recognize and kill infected cells without prior exposure to the virus, effectively slowing down the spread of infection. Additionally, NK cells produce proinflammatory...
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Infection01:20

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When a pathogen enters the body and reproduces, it can cause an infection, damage body cells, and cause illness symptoms that eventually lead to disease. Therefore, its prevention requires breaking the chain of infection.
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Viral Recombination00:57

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Cells are sometimes infected by more than one virus at once. When two viruses disassemble to expose their genomes for replication in the same cell, similar regions of their genomes can pair together and exchange sequences in a process called recombination. Alternatively, viruses with segmented genomes can swap segments in a process called reassortment.
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Intracellular Movement of Viruses and Bacteria01:10

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Intracellular bacteria and viruses often comprise a group of highly infectious pathogens that can cause several diseases. Bacterial pathogens include those belonging to the genus Rickettsia responsible for conditions such as rocky mountain spotted fever and the Mediterranean spotted fever; Chlamydia, a genus responsible for a sexually transmitted disease; Coxiella burnetii, an agent responsible for Q fever. Viral pathogens include vaccinia—a poxvirus, and herpes simplex virus—a...
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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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Correction: Peptine et al. Methicillin-Resistant <i>Staphylococcus aureus</i> (MRSA) and Vancomycin-Resistant Enterococci (VRE) in Nosocomial Infections: A Systematic Review of Resistance, Pathogenesis, and Clinical Management. <i>Microorganisms</i> 2026, <i>14</i>, 428.

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Isolation of Human Lymphatic Endothelial Cells by Multi-parameter Fluorescence-activated Cell Sorting
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Viral Infection and Dissemination Through the Lymphatic System.

Morgan E Brisse1, Heather D Hickman1

  • 1Laboratory of Viral Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20852, USA.

Microorganisms
|February 26, 2025
PubMed
Summary
This summary is machine-generated.

Viruses spread through the body using the lymphatic system, entering lymph nodes (LNs) where macrophages manage infection. Understanding this pathway is key for developing new antiviral therapies and vaccines.

Keywords:
B cell activationNK cellT cell activationantigen presentationcytokinedendritic celllymph nodelymph-borne virusmonocytesinus macrophage

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Area of Science:

  • Virology
  • Immunology
  • Lymphatic System Biology

Background:

  • Viruses often spread via the bloodstream after initial infection.
  • The lymphatic system, including lymph nodes (LNs), is a critical pathway for viral dissemination and control.
  • Viruses can enter lymphatic vessels as free particles or within infected cells.

Purpose of the Study:

  • To review the lymphatic system's role in viral dissemination.
  • To discuss viral infection within lymph nodes and adaptive immunity generation.
  • To explore current knowledge on protection within infected lymph nodes.

Main Methods:

  • Literature review of viral dissemination through the lymphatic system.
  • Analysis of virus-lymphatic interactions, including macrophage roles.
  • Examination of adaptive immunity and protection mechanisms in lymph nodes.

Main Results:

  • Lymph nodes serve as a critical interface for viral spread to the blood.
  • Macrophages in lymph nodes can either eliminate or propagate viruses.
  • The lymphatic system is a target for modulating antiviral responses and vaccine development.

Conclusions:

  • The lymphatic system is integral to viral pathogenesis and host defense.
  • Targeting lymph nodes offers potential for novel antiviral strategies and vaccine optimization.
  • Further understanding of virus-lymphatic interactions can advance next-generation therapies.