1. U.S. Geological Survey, National Fish Health Research Laboratory11649 Leetown RoadKearneysvilleWest Virginia25430USA
2. U.S. Fish and Wildlife Service, Fish Health CenterPost Office Box 155LamarPennsylvania16848USA
3. West Virginia Division of Natural Resources1 Depot StreetRomneyWest Virginia26757USA
4. Virginia Department of Game and Inland Fisheries517 Lee HighwayVeronaVirginia24482USA
5. Maryland Department of Natural ResourcesFisheries Service10932 Putman RoadThurmontMaryland21788USA
6. U.S. Geological Survey, National Water Quality Research LaboratoryBox 25046, Mail Stop 407DenverColorado80225USA
7. Shenandoah RiverkeeperPost Office Box 405BoyceVirginia22620USA