Inference of cowpox virus transmission rates between wild rodent host classes using space-time interaction |
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Authors: | Carslake David Bennett Malcolm Hazel Sarah Telfer Sandra Begon Michael |
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Affiliation: | School of Biological Sciences, University of Liverpool, L69 7ZB, UK. carslake@cebc.cnrs.fr |
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Abstract: | There have been virtually no studies of 'who acquires infection from whom' in wildlife populations, but patterns of transmission within and between different classes of host are likely to be reflected in the spatiotemporal distribution of infection among those host classes. Here, we use a modified form of K-function analysis to test for space-time interaction among bank voles and wood mice infectious with cowpox virus. There was no evidence for transmission between the two host species, supporting previous evidence that they act as separate reservoirs for cowpox. Among wood mice, results suggested that transmission took place primarily between individuals of the opposite sex, raising the possibility that cowpox is sexually transmitted in this species. Results for bank voles indicated that infected females might be a more important source of infection to either sex than are males. The suggestion of different modes of transmission in the two species is itself consistent with the apparent absence of transmission between species. |
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