| woodchuck hepatitis virus in natural woodchuck populations. | woodchuck hepatitis virus (whv) was discovered in serum samples from captive woodchucks (marmota monax) at the penrose research laboratory in december, 1977. whv belongs to the same class of viruses as hepatitis b virus (hbv), the cause of serum hepatitis in man. both appear to be associated with chronic hepatitis and hepatocellular carcinoma in their respective hosts. woodchucks were trapped and blood samples collected to determine the prevalence of whv in natural woodchuck populations. sera fr ... | 1981 | 7241716 |
| toxoplasma gondii antibodies in woodchucks (marmota monax) from pennsylvania. | serum samples from 545 woodchucks marmota monax from 22 counties in pennsylvania were examined for antibodies to toxoplasma gondii by the modified direct agglutination test. fifty-one woodchucks (9.4%) had antibodies to t. gondii, with 10% at dilutions of 1:25, 2% at dilutions of 1:50, and 4% at dilutions of 1:500. this is the first report of t. gondii antibodies in woodchucks. | 1995 | 7876971 |
| heterogeneity of the woodchuck hepatitis virus genome in a chronically infected woodchuck. | the nucleotide sequence of an isolate of woodchuck hepatitis virus (whv) from the serum of a woodchuck trapped in new york state (whvny) was compared with the sequences of previously published isolates. the nucleotide sequence of whvny was closest to that of an isolate originating from new jersey: the two genomes shared a 15 nucleotide in-frame deletion in the region where the presurface and polymerase genes overlap (nucleotides 3260-3274) and differed by 54 point mutations (1.6% of genome). ami ... | 1993 | 8488722 |
| serologic evidence for a novel ehrlichia species in woodchucks (marmota monax) from pennsylvania, usa. | | 2003 | 12860605 |
| cerebrospinal nematodosis in pennsylvania groundhogs (marmota monax). | | 1964 | 14266874 |
| serologic survey of woodchuck hepatitis virus in north carolina woodchucks (marmota monax). | the prevalence of woodchuck hepatitis virus (whv) in wild populations of woodchucks is understudied and therefore unclear. although infection is common in the southeastern region of pennsylvania and surrounding states, it is virtually absent in new york and new england. sera were collected from wild woodchucks from orange county, north carolina and tested for the presence of markers of current or previous infection with whv. of the 24 woodchucks tested, there were three animals (12.5%) with whv ... | 2008 | 18634221 |
| effect of body mass on hibernation strategies of woodchucks (marmota monax). | the benefits of mammalian hibernation have been well documented. however, the physiological and ecological costs of torpor have been emphasized only recently as part of a hibernation-optimization hypothesis. this hypothesis predicts that hibernators with greater availability of energy minimize costs of torpor by less frequent utilization of torpor and by maintaining higher body temperatures (t(b)) during torpor. in order to further examine the relationship between body mass and other parameters ... | 2014 | 24345658 |