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Guarding against the most dangerous emerging pathogens

P W Ewald1

  • 1Department of Biology, Amherst College, Amherst, MA 01002-5000, USA. pwewald@amherst.edu

Emerging Infectious Diseases
|October 1, 1996
PubMed
Summary
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Emerging infectious diseases pose a significant global health challenge. Understanding pathogen evolution, particularly virulence trade-offs, helps identify high-risk organisms for targeted control strategies.

Area of Science:

  • Epidemiology
  • Evolutionary Biology
  • Public Health

Background:

  • Emerging infectious diseases present complex control challenges due to the vast number of potential pathogens and diverse geographic emergence sites.
  • The increasing threat of novel infectious agents necessitates advanced strategies for disease prevention and management.

Purpose of the Study:

  • To explore how evolutionary principles can inform the control of emerging infectious diseases.
  • To identify key characteristics of pathogens that facilitate establishment and high virulence in human populations.

Main Methods:

  • Review of current understanding of pathogen evolution and virulence.
  • Analysis of the cost-benefit trade-offs influencing pathogen exploitation of hosts.

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Main Results:

  • Pathogen virulence is influenced by a trade-off between host exploitation costs and benefits.
  • This evolutionary perspective enables the identification of pathogens most likely to achieve high virulence and establish in human populations.

Conclusions:

  • Control programs can strategically focus on pathogens exhibiting specific virulence traits.
  • Applying evolutionary insights to pathogen virulence is crucial for effective emerging infectious disease management.