Peer-reviewed veterinary case report
Why apply ecological laws to epidemiology?
- Journal:
- Trends in parasitology
- Year:
- 2008
- Authors:
- Morand, Serge & Krasnov, Boris
- Affiliation:
- Institut des Sciences de l'Evolution · France
Abstract
Using ecological laws, or rules, is a useful strategy for epidemiological observations. The application of Taylor's power law to epidemiology and evolutionary ecology of parasites is exemplified here. Taylor's power law takes the form of s2=amb, where s2 is the variance in population abundance, m is the mean abundance of the population, a represents a constant parameter and b represents an index of spatial heterogeneity. Although Taylor's power law reflects the aggregation of parasite (or pathogen) individuals among host population, the values of b could reflect regulation processes in host-parasite systems. Illustrations are given showing how b value is linked to various epidemiological situations: pathogen emergence, the impact of vaccination or the level of host immune defence.
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Search related cases →Original publication: https://pubmed.ncbi.nlm.nih.gov/18514576/