1. Department of Pathology, University of Texas Medical Branch, Galveston, Texas.
2. Department of Biological Sciences, Texas Tech University, Lubbock, Texas.
3. Orange County Vector Control District, Garden Grove, California.
4. County of Riverside, Department of Environmental Health, Hemet, California.
5. Los Angeles County, Department of Public Health, Baldwin Park, California.
6. County of San Diego, Department of Environmental Health, San Diego, California.
7. San Gabriel Valley Mosquito and Vector Control District, West Covina, California.