Journal
PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES
Volume 277, Issue 1694, Pages 2587-2595Publisher
ROYAL SOC
DOI: 10.1098/rspb.2010.0340
Keywords
disease; diversity gradients; global climate; human health
Categories
Funding
- NASA [NNX09AK22G]
- DOE-PER
- DOE-NICCR
- National Science Foundation
- University of California, Santa Barbara
- NASA [114537, NNX09AK22G] Funding Source: Federal RePORTER
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The differences in the richness and prevalence of human pathogens among different geographical locations have ramifying consequences for societies and individuals. The relative contributions of different factors to these patterns, however, have not been fully resolved. We conduct a global analysis of the relative influence of climate, alternative host diversity and spending on disease prevention on modern patterns in the richness and prevalence of human pathogens. Pathogen richness (number of kinds) is largely explained by the number of birds and mammal species in a region. The most diverse countries with respect to birds and mammals are also the most diverse with respect to pathogens. Importantly, for human health, the prevalence of key human pathogens (number of cases) is strongly influenced by disease control efforts. As a consequence, even where disease richness is high, we might still control prevalence, particularly if we spend money in those regions where current spending is low, prevalence is high and populations are large.
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