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Why are there so few pathogens? Ecology and evolution in pathogen emergence
John M Drake1,2
1Odum School of Ecology and Center for the Ecology of Infectious Diseases, University of Georgia, Athens, Georgia, United States of America.
Few pathogens emerge due to ecological and evolutionary factors. Host availability, geographic exposure, and microbial innovation will shape the future of human diseases.
Area of Science:
- Ecology
- Evolutionary Biology
- Epidemiology
Background:
- Understanding pathogen emergence is crucial for public health.
- The low number of known pathogens compared to microbial diversity presents a paradox.
Purpose of the Study:
- To investigate the ecological and evolutionary factors driving pathogen emergence.
- To predict future trends in human infectious diseases.
Main Methods:
- Ecological modeling
- Evolutionary analysis
- Geographic distribution studies
Main Results:
- Host availability significantly influences pathogen establishment.
- Geographic exposure facilitates pathogen transmission and spread.
- Microbial innovation is a key driver for novel pathogen emergence.
Conclusions:
- Pathogen emergence is shaped by a complex interplay of ecological and evolutionary forces.
- Future human diseases will be influenced by host availability, geographic exposure, and microbial innovation.
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