1. The University of the West Indies, St. Augustine, Trinidad and Tobago
2. Virginia-Maryland College of Veterinary Medicine, Virginia Tech, Blacksburg, Virginia, USA
3. Department of Medicine and Epidemiology, University of California Davis School of Veterinary Medicine, Davis, California, USA
4. US Geological Survey, Eastern Ecological Science Center, Kearneysville, West Virginia, USA
5. Lab of Cellular Oncology, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
6. USDA-ARS, National Center for Cool and Cold Water Aquaculture, Kearneysville, West Virginia, USA