1. Department of Microbiology and Immunology; Montana State University; Montana MT USA
2. Department of Ecology and Evolutionary Biology; Princeton University; Princeton NJ USA
3. Institute of Biodiversity, Animal Health and Comparative Medicine; Universtiy of Glasgow; Glasgow UK
4. Environmental Futures Research Institute and Griffith School of Environment; Griffith University; Griffith Qld. Australia
5. Emmett Interdisciplinary Program in Environment and Resources; Stanford University; Stanford CA USA
6. Department of Veterinary Pathology; College of Veterinary Medicine; University of Georgia; Athens GA USA
7. Department of Environmental Sciences; Department of Environmental Health; Rollins School of Public Health; Program In Population; Biology, Ecology and Evolution; Emory University; Athens GA USA
8. School of Mathematics and Statistics; University of Glasgow; Glasgow UK