| bartonella spp. exposure in northern and southern sea otters in alaska and california. | since 2002, an increased number of northern sea otters (enhydra lutris kenyoni) from southcentral alaska have been reported to be dying due to endocarditis and/or septicemia with infection by streptococcus infantarius subsp. coli. bartonella spp. dna was also detected in northern sea otters as part of mortality investigations during this unusual mortality event (ume) in kachemak bay, alaska. to evaluate the extent of exposure to bartonella spp. in sea otters, sera collected from necropsied and l ... | 2014 | 25514118 |
| locally acquired disseminated histoplasmosis in a northern sea otter (enhydra lutris kenyoni) in alaska, usa. | histoplasmosis of local origin has not been reported in humans or wildlife in alaska, and the disease has never been reported in a free-ranging marine mammal. in 2005 a northern sea otter (enhydra lutris kenyoni) was found on kodiak island, alaska, at 57° latitude north, far outside the known distribution of histoplasma capsulatum. the animal died of disseminated histoplasmosis. microorganisms consistent with histoplasma sp. were observed on histopathology, and h. capsulatum was identified by pc ... | 2014 | 24484503 |
| novel bartonella infection in northern and southern sea otters (enhydra lutris kenyoni and enhydra lutris nereis). | since 2002, vegetative valvular endocarditis (vve), septicemia and meningoencephalitis have contributed to an unusual mortality event (ume) of northern sea otters in southcentral alaska. streptococcal organisms were commonly isolated from vegetative lesions and organs from these sea otters. bartonella infection has also been associated with bacteremia and vve in terrestrial mammals, but little is known regarding its pathogenic significance in marine mammals. our study evaluated whether streptoco ... | 2014 | 24629902 |
| novel poxvirus infection in northern and southern sea otters (enhydra lutris kenyoni and enhydra lutris neiris), alaska and california, usa. | small superficially ulcerated skin lesions were observed between october 2009 and september 2011 during captive care of two orphaned sea otter pups: one northern (enhydra lutris kenyoni) in alaska and one southern (enhydra lutris nereis) in california. inclusions consistent with poxviral infection were diagnosed by histopathology in both cases. virions consistent with poxvirus virions were seen on electron microscopy in the northern sea otter, and the virus was successfully propagated in cell cu ... | 2014 | 24807180 |
| coxiella burnetii exposure in northern sea otters enhydra lutris kenyoni. | valvular endocarditis has been well described in northern sea otters enhydra lutris kenyoni of alaska and in many cases no cause has been identified. it is also one of the most common conditions observed in people with chronic coxiella burnetii infection. given the high levels of c. burnetii exposure in marine mammals distributed throughout the same geographic range as the northern sea otter, and the presence of valvular lesions seen in otters, the objective of this study was to determine the le ... | 2015 | 25958809 |
| mustelid herpesvirus-2, a novel herpes infection in northern sea otters (enhydra lutris kenyoni). | oral ulcerations and plaques with epithelial eosinophilic intranuclear inclusions were observed in northern sea otters (enhydra lutris kenyoni) that died or were admitted for rehabilitation after the 1989 exxon valdez oil spill (evos) in alaska, usa. transmission electron microscopy demonstrated the presence of herpesviral virions. additionally, a serologic study from 2004 to 2005 found a high prevalence of exposure to a herpesvirus in live-captured otters. tissues from 29 otters after the evos ... | 2012 | 22247388 |
| assessment of clinical pathology and pathogen exposure in sea otters (enhydra lutris) bordering the threatened population in alaska. | northern sea otter (enhydra lutris kenyoni) abundance has decreased dramatically over portions of southwest alaska, usa, since the mid-1980s, and this stock is currently listed as threatened under the endangered species act. in contrast, adjacent populations in south central alaska, usa, and russia have been stable to increasing during the same period. sea otters bordering the area classified in the recent decline were live-captured during 2004-2006 at bering island, russia, and the kodiak archi ... | 2011 | 21719822 |
| sarcomas in three free-ranging northern sea otters (enhydra lutris kenyoni) in alaska. | three sarcomas were diagnosed in wild northern sea otters (enhydra lutris kenyoni) during the mid- to late 1990s. histologically, the tumors were a chondrosarcoma and two low-grade fibrosarcomas with myofibroblastic cell differentiation. the three sea otters were surviving in the wild and were killed by hunters. | 2012 | 22493127 |