| modest genetic differentiation among north american populations of sarcocystis neurona may reflect expansion in its geographic range. | sarcocystis neurona is an important cause of neurological disease in horses (equine protozoal myeloencephalitis, epm) and sea otters in the united states. in addition, epm-like disease has been diagnosed in several other land and marine mammals. opossums are its only definitive hosts. little genetic diversity among isolates of s. neurona from different hosts has been reported. here, we used 11 microsatellites to characterize s. neurona dna isolated from natural infections in 22 sea otters (enhyd ... | 2008 | 18243561 |
| characterization of toxoplasma gondii from raccoons (procyon lotor), coyotes (canis latrans), and striped skunks (mephitis mephitis) in wisconsin identified several atypical genotypes. | during 2005-2006, sera and tissues from raccoons (procyon lotor), coyotes (canis latrans), and skunks (mephitis mephitis) from the state of wisconsin were tested for toxoplasma gondii infection. antibodies to t. gondii were found in 32 of 54 (59.2%) raccoons, 18 of 35 (51.4%) coyotes, and 5 of 7 (71.4%) skunks using the modified agglutination test and a cut-off titer of 1:20. pooled tissues (brains, hearts, and tongues) from 30 raccoons, 15 coyotes, and 1 skunk were bioassayed for t. gondii infe ... | 2007 | 18314705 |
| trichinella murrelli in scavenging mammals from south-central wisconsin, usa. | tissues and serum from 59 raccoons (procyon lotor), 42 coyotes (canis latrans), and seven striped skunks (mephitis mephitis) collected in dane and iowa counties, wisconsin, usa, between october 2005 and march 2006 were microscopically and serologically examined for the presence of trichinella spp. encapsulated larvae were found on compression slides prepared from tongue tissues from a few animals. complete tissue digestion of tongues revealed that 19% of the raccoons, 26% of the coyotes, and non ... | 2008 | 18689648 |
| increased recognition of powassan encephalitis in the united states, 1999-2005. | powassan virus (powv) disease is a rare human disease caused by a tick-borne encephalitis group flavivirus maintained in a transmission cycle between ixodes cookei and other ixodid ticks and small and medium-sized mammals. during 1958-1998, only 27 powv disease cases (mostly powassan encephalitis) were reported from eastern canada and the northeastern united states (average, 0.7 cases per year). during 1999-2005, nine cases (described herein) of serologically confirmed powv disease were reported ... | 2008 | 18959500 |