1. Department of Environmental Sciences, Center for Vector Biology and Zoonotic Diseases, The Connecticut Agricultural Experiment Station, New Haven, Connecticut;
2. The Arbovirus Laboratories, Wadsworth Center, New York State Department of Health, Slingerlands, New York;
3. Department of Entomology, Virginia Polytechnic Institute and State University, Blacksburg, Virginia;
4. Department of Biomedical Sciences, State University of New York at Albany School of Public Health, Albany, New York