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Related Concept Videos

Immunological Memory01:23

Immunological Memory

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Immunological memory, a pivotal pillar of the adaptive immune system, is responsible for the body's ability to remember and respond more swiftly and effectively to previously encountered pathogens. This remarkable feature is what makes vaccines so effective in preventing diseases.
What is Immunological Memory?
Immunological memory is an integral function of the immune system that allows it to recognize and react more rapidly and effectively to pathogens previously encountered. This feature...
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Infection01:20

Infection

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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.
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...
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Stages of Infection01:26

Stages of Infection

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Stages of infection describe what happens to a susceptible host once a pathogen invades the human body. The stages of infection are incubation, prodromal, illness, stage of decline, and convalescence. The incubation stage is the period from exposure to a pathogen until symptoms start. The infected person is unaware of impending illness as the pathogens grow and multiply within the body. The duration may vary depending on the type of infection. The incubation period of measles averages ten to...
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Defense Mechanism Against Infection01:26

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Natural flora, body system defenses, and inflammation are natural barriers of the body against infectious agents regardless of previous exposure. Normal floras of the human body refer to the microbial population that colonizes the skin and mucous membranes.
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Sexually Transmitted Infections01:26

Sexually Transmitted Infections

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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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Factors Affecting the Risk of Infection01:26

Factors Affecting the Risk of Infection

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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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Related Experiment Video

Updated: Jan 31, 2026

A Protein Microarray Assay for Serological Determination of Antigen-specific Antibody Responses Following Clostridium difficile Infection
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A Protein Microarray Assay for Serological Determination of Antigen-specific Antibody Responses Following Clostridium difficile Infection

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Clostridium Difficile Infection: An Immunological Conundrum.

Rene Arredondo-Hernandez1, Patricia Orduña-Estrada1, Yolanda Lopez-Vidal2

  • 1División de Investigación, Facultad de Medicina, Universidad Nacional Autónoma de México, Ciudad de México, México.

Archives of Medical Research
|January 9, 2019
PubMed
Summary
This summary is machine-generated.

Clostridium difficile infection (CDI) poses challenges due to a poor understanding of immune responses. This review explores how immune dysfunction, particularly from antibiotics, impacts CDI severity and complications.

Keywords:
Antimicrobial effects over immunityCDIClostridium difficileIBDInflammatory response trainingInnate immunityIntestinal bowel diseaseMicrobiome

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Culturing and Maintaining Clostridium difficile in an Anaerobic Environment
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A Protein Microarray Assay for Serological Determination of Antigen-specific Antibody Responses Following Clostridium difficile Infection
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A Protocol to Characterize the Morphological Changes of Clostridium difficile in Response to Antibiotic Treatment
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A Protocol to Characterize the Morphological Changes of Clostridium difficile in Response to Antibiotic Treatment

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Area of Science:

  • Immunology
  • Microbiology
  • Gastroenterology

Background:

  • Clostridium difficile infection (CDI) is a significant healthcare challenge, often linked to antibiotic use and chronic inflammatory conditions.
  • The precise mechanisms by which immune responses contribute to CDI incidence and severity remain incompletely understood.
  • There is a parallel rise in CDI and chronic degenerative diseases, suggesting interconnected pathophysiological pathways.

Purpose of the Study:

  • To review the challenges posed by the host immune system during acute Clostridium difficile infection.
  • To identify key signaling pathways between the gut microbiota and inflammatory cells in CDI.
  • To elucidate how Clostridium difficile toxins disrupt immune regulation, leading to tissue damage and persistent infection.

Main Methods:

  • Literature review focusing on immunology, microbiology, and gastroenterology research related to Clostridium difficile infection.
  • Analysis of studies investigating host-pathogen interactions and immune responses in the context of CDI.
  • Synthesis of data on microbiota-host signaling and immune cell behavior during CDI progression.

Main Results:

  • Aberrant immune function, potentially induced by antibiotics, may contribute to inflammatory bowel disease (IBD) and increased CDI incidence/mortality in inflammatory disorders.
  • Clostridium difficile toxins (A and B) appear to mediate their effects through inflammatory pathways.
  • The review identifies common signals in microbiota-inflammatory cell communication and highlights Clostridium difficile's ability to sequester regulatory networks.

Conclusions:

  • A deeper understanding of immunity's role in CDI is crucial for managing this infectious disease.
  • Immune dysregulation, particularly following antibiotic treatment, is implicated in CDI severity and complications.
  • Clostridium difficile actively manipulates host immune responses, hindering its own clearance and causing intestinal tissue damage.