Published 2013 | Version v1
Journal article Restricted

A comparison of bats and rodents as reservoirs of zoonotic viruses: are bats special?

Description

(Uploaded by Plazi for the Bat Literature Project) Bats are the natural reservoirs of a number of high-impact viral zoonoses. We present a quantitative analysis to address the hypothesis that bats are unique in their propensity to host zoonotic viruses based on a comparison with rodents, another important host order. We found that bats indeed host more zoonotic viruses per species than rodents, and we identified life-history and ecological factors that promote zoonotic viral richness. More zoonotic viruses are hosted by species whose distributions overlap with a greater number of other species in the same taxonomic order (sympatry). Specifically in bats, there was evidence for increased zoonotic viral richness in species with smaller litters (one young), greater longevity and more litters per year. Furthermore, our results point to a new hypothesis to explain in part why bats host more zoonotic viruses per species: the stronger effect of sympatry in bats and more viruses shared between bat species suggests that interspecific transmission is more prevalent among bats than among rodents. Although bats host more zoonotic viruses per species, the total number of zoonotic viruses identified in bats (61) was lower than in rodents (68), a result of there being approximately twice the number of rodent species as bat species. Therefore, rodents should still be a serious concern as reservoirs of emerging viruses. These findings shed light on disease emergence and perpetuation mechanisms and may help lead to a predictive framework for identifying future emerging infectious virus reservoirs.

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Additional details

Identifiers

URL
hash://md5/b15155b831b055b12454f10d3438a08f
URN
urn:lsid:zotero.org:groups:5435545:items:3VDS26ZW
DOI
10.1098/rspb.2012.2753

Biodiversity

Class
Mammalia
Kingdom
Animalia
Order
Chiroptera
Phylum
Chordata