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Related Concept Videos

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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Investigating Pain-Related Avoidance Behavior using a Robotic Arm-Reaching Paradigm
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Infection-avoidance behaviour in humans and other animals.

Valerie A Curtis1

  • 1The Hygiene Centre, London School of Hygiene and Tropical Medicine, Keppel Street, London WC1E 4HT, UK.

Trends in Immunology
|September 27, 2014
PubMed
Summary

Animals avoid parasites through tolerance, resistance, or avoidance. This study proposes a new classification of avoidance behaviors based on infection risk, linking disgust and immune systems.

Keywords:
avoidancebehaviour.disgusthygieneinfectionsanitation

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Area of Science:

  • Behavioral Ecology
  • Parasitology
  • Evolutionary Biology

Background:

  • Parasites pose significant challenges to animal hosts.
  • Hosts employ tolerance, resistance, and avoidance strategies to manage parasite infections.
  • Understanding avoidance behavior is crucial for host-parasite dynamics.

Purpose of the Study:

  • To introduce a novel classification of avoidance behaviors.
  • To categorize avoidance strategies based on epidemiological infection risk.
  • To explore the relationship between the disgust system and the immune system in avoidance.

Main Methods:

  • Classification of avoidance behaviors based on four key risk factors: conspecifics, parasites/vectors, parasite-rich environments, and niche infestation.
  • Exploration of the potential continuum between the disgust adaptive system and the immune system.
  • Analysis of shared signaling pathways, sites of action, and evolutionary history.

Main Results:

  • A proposed new classification framework for animal avoidance behaviors.
  • Identification of four distinct categories of avoidance based on infection risk.
  • Evidence suggesting a continuum between disgust and immune system functions in mediating avoidance.

Conclusions:

  • The proposed classification provides a structured approach to understanding avoidance strategies.
  • Avoidance behavior is a critical component of host defense against parasites.
  • The disgust and immune systems may be interconnected in coordinating host protection.