Health Education and Promotion, Environmental Health Sciences Program, East Carolina University, Greenville, NC, USA.
Marilyn O. Ruiz
Geographic Information Systems and Spatial Analysis laboratory, College of Veterinary Medicine, University of Illinois at Urbana-Champaign, Urbana, IL, USA.
Rebecca T. Trout Fryxell
Medical and Veterinary Entomology, University of Tennessee, Knoxville, TN, USA.
Christopher J. Vitek
Department of Biology, University of Texas-Pan American, Edinburg, TX, USA.
