1. Department of Environmental Sciences, Emory University , Atlanta, GA 30322 , USA
2. Department of Pathology, Microbiology, and Immunology, School of Veterinary Medicine, University of California , Davis, CA 95616 , USA
3. Department of Global Community Health and Behavioral Sciences, Tulane University School of Public Health and Tropical Medicine , New Orleans, LA 70112 , USA
4. Division of Health Promotion & Behavioral Sciences, School of Public Health, San Diego State University , San Diego, CA 92182 , USA
5. Department of Biology, University of Chicago , Chicago, IL 60637 , USA
6. Department of Biostatistics, Rollins School of Public Health, Emory University , Atlanta, GA 30322 , USA
7. Department of Biology, University of Notre Dame , South Bend, IN 46556 , USA
8. Biomathematics Graduate Program and Department of Mathematics, North Carolina State University , Raleigh, NC 27607 , USA
9. Virology Department, Naval Medical Research Unit-6 , Iquitos 16003 , Peru
10. Department of Entomology and Nematology, University of California , Davis, CA 95616 , USA