| serologic evidence of exposure of wild mammals to flaviviruses in the central and eastern united states. | serosurveys were conducted to obtain flavivirus and west nile virus (wnv) seroprevalence data from mammals. sera from 513 small- and medium-sized mammals collected during late summer and fall 2003 from colorado, louisiana, new york, ohio, and pennsylvania were screened for flavivirus-specific antibodies. sera samples containing antibody to flaviviruses were screened for wnv-specific antibodies by epitope-blocking enzyme-linked immunosorbent assays and confirmed with plaque reduction neutralizati ... | 2005 | 15891139 |
| serologic evidence of west nile virus exposure in north american mesopredators. | sera from 936 mammalian mesopredators (virginia opossums, gray foxes, striped skunks, hooded skunks, raccoons, a bobcat, and a red fox) were collected during 2003 and 2004 in california, arizona, texas, louisiana, ohio, and wyoming and screened for flavivirus-specific antibodies by an epitope-blocking enzyme-linked immunosorbent assay (blocking elisa). serum samples positive for antibodies against flaviviruses were screened for west nile virus (wnv)-specific antibodies by blocking elisa and sele ... | 2007 | 17255248 |
| salmonella enterica isolated from wildlife at two ohio rehabilitation centers. | between may and september 2004, fecal samples from various wildlife species admitted to two rehabilitation centers in ohio were cultured for salmonella enterica and escherichia coli o157:h7. eight of 71 (11%) samples, including specimens from three opossums (didelphis virginiana), two gray squirrels (sciurus carolinensis), a woodchuck (marmota monax), a harris hawk (parabuteo unicinctus), and a screech owl (otus asio) tested positive for salmonella serovars braenderup, senftenberg, oranienburg, ... | 2007 | 17939349 |
| seasonal energetics of opossums (didelphis virginiana) in ohio. | 1. female opossums acclimatized to each of the four seasons were not significantly different (p greater than 0.05) in oxygen consumption at a ta of 0 degrees c; the overall average was 0.66 +/- 0.1 ml o2/g-hr. 2. body weight decreased by 27% from autumn to spring; pelage density increased in winter, but thermal conductance changed very little between seasons. 3. respirometry revealed no evidence of thermoregulatory adjustments in opossums acclimatized to winter in ohio. | 1988 | 2901314 |