1. Department of Biology, McGill University, Montreal, QC, Canada
2. Department of Pathobiological Sciences, University of Wisconsin–Madison, Madison, WI, USA
3. Department of Pathology and Laboratory Medicine, University of Wisconsin–Madison, Madison, WI, USA
4. Department of Anthropology and McGill School of Environment, Montreal, QC, Canada, and Wildlife Conservation Society, NY, USA
5. Makerere University Biological Field Station, Fort Portal, Uganda
6. Wisconsin National Primate Research Center, Madison, WI, USA
7. School of Medicine and Public Health, University of Wisconsin–Madison, Madison, WI, USA