From infectious diseases to primary immunodeficiencies

Jacinta Bustamante1, Shen-Ying Zhang, Horst von Bernuth

  • 1Laboratory of Human Genetics of Infectious Diseases, Institut Nationale de la Santé et de la Recherche Médicale, INSERM U550, 75015 Paris, France.

Summary

Exploring novel genetic causes for unexplained infectious diseases has identified three new primary immunodeficiency groups. Continued genetic investigation of rare infections benefits patients and families.

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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.
There are three main causes of immunodeficiency disorders...
Infection01:20

Infection

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.
The chain begins with pathogens: bacteria, viruses, fungi, prions, or parasites such as protozoa helminths. These can be present on the skin as transient or resident flora, or they can be acquired from the environment. Identifying and treating the type of infection and...
Humoral Immune Responses01:36

Humoral Immune Responses

Overview
Factors Affecting the Risk of Infection01:26

Factors Affecting the Risk of Infection

The hosts' susceptibility to infection depends on several factors. The integrity of the skin and mucous membranes helps protect the body against microbial attacks. When the skin is altered, the chance of infection, limb loss, and even death increases.
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Development of Immunocompetence01:22

Development of Immunocompetence

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Subsequent T...
Infectious Diseases and Their Occurrence01:28

Infectious Diseases and Their Occurrence

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