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How do infections impact social relationships?

Will Rogers1, Vanessa O Ezenwa1, Gerald G Carter2,3,4

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Summary
This summary is machine-generated.

Parasites alter social behaviors by creating a cost-benefit trade-off. This impacts how infected and uninfected individuals interact across various relationship types and stages.

Keywords:
behavioural ecologyepidemiologyparasitismsickness behavioursocial behavioursocial networks

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Area of Science:

  • Behavioral Ecology
  • Epidemiology
  • Evolutionary Biology

Background:

  • Sociality influences infectious disease dynamics, and vice versa.
  • Parasite transmission is affected by social interaction rates, while infections can modify social behavior.
  • A core feedback loop involves a trade-off between social benefits and parasite-induced costs.

Purpose of the Study:

  • To hypothesize how variations in the cost-benefit trade-off of sociality and parasitism explain differing behavioral responses.
  • To generate testable predictions on parasite impacts across diverse social relationships and developmental stages.
  • To explore the long-term social consequences of acute infections on relationship development.

Main Methods:

  • Hypothetical cost-benefit trade-off framework.
  • Comparative analysis of social relationships (parent-offspring, pair-bond, affiliative, dominance).
  • Behavioral response predictions for infected and uninfected hosts.

Main Results:

  • Behavioral responses to parasitism vary based on the cost-benefit trade-off.
  • Parasite impacts differ across relationship types and stages of development.
  • Social relationship dynamics are influenced by the interplay of social benefits and infection costs.

Conclusions:

  • The cost-benefit trade-off is a key factor in understanding host behavior in the context of infectious diseases.
  • Parasitism can lead to lasting changes in social structures and relationships.
  • Understanding these dynamics is crucial for predicting disease spread and social evolution.