| survival of duck plague virus in water from lake andes national wildlife refuge, south dakota. | an isolant of duck plague herpesvirus from the lake andes refuge outbreak was seeded in raw and filter-decontaminated water from two locations on the refuge, held at 4 c, and assayed for infectivity intermittently over a period of 2 mo. from an initial level of about 10(5) pfu per ml, infectivity in the filtered samples uniformly dropped to about 10(4) pfu per ml. infectivity in the raw samples declined much more rapidly; infectious virus remaining at the end of 2 mo (ca. 10(1) pfu per ml) was o ... | 1982 | 6296472 |
| perspectives on the diagnosis, epizootiology, and control of the 1973 duck plague epizootic in wild waterfowl at lake andes, south dakota. | an epizootic of duck plague occurred in early 1973 in a population of 163,500 wild waterfowl, primarily mallards (anas platyrhynchos), wintering on lake andes and the nearby missouri river in southeastern south dakota (usa). the diagnosis was based on pathologic lesions and confirmed by virus isolation. control measures included quarantine, attempts to reduce virus contamination of the area, dispersal of waterfowl, and monitoring of wild waterfowl populations for mortality. the epizootic resulte ... | 1997 | 9391953 |