west nile virus activity--united states, september 8-14, 2004.during september 8-14, a total of 195 cases of human west nile virus (wnv) illness were reported from 26 states (alabama, arizona, arkansas, california, colorado, florida, georgia, idaho, illinois, iowa, kansas, maryland, minnesota, missouri, nebraska, nevada, new mexico, new york, north dakota, oklahoma, oregon, pennsylvania, south dakota, tennessee, texas, and wisconsin).200415371969
equine cutaneous non-neoplastic nodular and proliferative lesions in the pacific northwest.a retrospective study examined data on cutaneous nodular and proliferative lesions in horses, donkeys and mules submitted to the veterinary diagnostic laboratory at oregon state university in a 3.5-year period. one hundred and sixteen non-neoplastic nodular and proliferative lesions were identified, comprising 18% of all lesions studied and 6.4% of total equine pathology accessions. exuberant granulation tissue, eosinophilic granuloma, fungal granuloma, cysts and habronaemiasis were most common, ...200516359312
type a botulism in horses in the united states: a review of the past ten years (1998-2008).the objective of the current retrospective study was to describe naturally occurring type a botulism in horses in the united states. in the past 10 years, the botulism laboratory at the university of pennsylvania's school of veterinary medicine has identified 3 isolated cases and 8 outbreaks of type a botulism in horses via samples positive for clostridium botulinum type a toxin or spores using the mouse bioassay test. additional information was obtained by review of submission forms and by tele ...201020224073
patterns of maxillofacial injuries related to interaction with horses.studies of trauma patients have described patterns of injuries sustained from unfortunate encounters with large animals. however, the patterns of maxillofacial injuries have yet to be reported. the goal of this investigation was to describe and report on maxillofacial injuries that are associated with interaction with horses.200415170280
surveillance for acute insecticide-related illness associated with mosquito-control efforts--nine states, 1999-2002.ground and aerial applications of insecticides are used to control populations of adult mosquitoes, which spread such diseases as west nile virus--related illness, eastern equine encephalitis, and dengue fever. this report summarizes investigations of illnesses associated with exposures to insecticides used during 1999-2002 to control mosquito populations in nine states (arizona, california, florida, louisiana, michigan, new york, oregon, texas, and washington) (estimated 2000 population: 118 mi ...200312855943
physicians' decisions about patient capacity: the trojan horse of physician-assisted suicide.even if all physicians follow elaborate guidelines in determining patient capacity, their judgments will remain subjective and heavily influenced by their own personal values. capacity guidelines are the trojan horse of physician-assisted suicide, because their appealing and reasonable character conceals the real decision-making power placed in the hands of physicians, who in reality evaluate the patient's quality of life. we should instead concentrate our efforts on a better alternative: qualit ...200012659116
generalized viral illness caused by an intermediate strain of adenovirus (21/h21 + 35).ten isolates of an antigenically intermediate strain of adenovirus were recovered from eight persons who presented febrile upper respiratory illness, pneumonia, or multisystem disease between november 1976 and august 1978. six isolates were recovered from four members of an extended family in which the other nine members all had serologic evidence of infection; the other four isolates were epidemiologically unrelated. the isolates were placed in hemagglutination group ib on the basis of results ...19806245153
characterization of the oregon isolate of neospora hughesi from a horse.neospora hughesi was isolated in cell cultures inoculated with homogenate of spinal cord from a horse in oregon. tachyzoites of this oregon isolate of n. hughesi were maintained continuously by cell culture passage and tachyzoites were infective to immunosuppressed mice. gamma interferon gene knockout (ko) mice injected with tachyzoites developed fatal myocarditis and numerous tachyzoites were seen in lesions. gerbils (meriones unguiculatus) inoculated with tachyzoites developed antibodies (> or ...200111318565
characterization of a sarcocystis neurona isolate (sn6) from a naturally infected horse from isolate of sarcocystis neurona (sn6) was obtained from the spinal cord of a horse from oregon with neurologic signs. the parasite was isolated in cultures of bovine monocytes and equine spleen cells. the parasite divided by endopolygeny and completed at least one asexual cycle in cell cultures in three days. two gamma interferon knockout mice inoculated with cell culture-derived merozoites became ill 35 d later and s. neurona schizonts and merozoites were found in encephalitic lesions. the pa ...199910519218
thoughts on the transmission of sarcocystis neurona. 200010668526
a euschoengastia species (acari: trombiculidae) of possible medical and veterinary importance in oregon. 19734707761
population genetics of great basin feral horses.the genetic make-up of great basin wild (feral) horses was investigated by blood typing studies. blood samples of 975 feral horses from seven trap sites in nevada and oregon were tested by serological and electrophoretic techniques for genetic markers at 19 polymorphic loci. the average number of variants for the seven feral populations [72.1 +/- 3.2 (sem), range 62-85] was not significantly different from that of 16 domestic breeds (75.0 +/- 11.5, range 58-105). the expected average frequency o ...19947943986
survey of equine cutaneous neoplasia in the pacific northwest.a retrospective study examined data regarding equine cutaneous and mucocutaneous neoplasms submitted to the veterinary diagnostic laboratory at oregon state university in a 3.5-year period. a total of 536 neoplasms were identified, accounting for 30% of the total equine pathology submissions. sarcoid, squamous cell carcinoma, melanocytic tumors, papillomas, and mast cell tumors were the most common neoplasms, constituting 87.5% of all cutaneous neoplasms. sarcoids represented 51.4% of all neopla ...200616566271
multiple sources of escherichia coli o157 in feedlots and dairy farms in the northwestern usa.samples from cattle, other domestic and wild animals, flies, feeds, and water-troughs were collected from 12 cattle farms and tested for escherichia coli o157. e. coli o157 was isolated from bovine fecal samples on all 12 farms with a within herd prevalence ranging from 1.1% to 6.1%. e. coli o157 was also found in 1 of 90 (1.1%) equine fecal samples, 2 of 65 (3.1%) canine fecal samples, 1 of 200 pooled bird samples (0.5%), 2 of 60 pooled fly samples (3.3%), and 10 of 320 (3.1%) water-trough samp ...19989638776
hematologic and blood chemical characteristics of feral horses from three management areas.blood was collected from 486 feral horses of mixed sex and age classes captured from three wild horse management areas in nevada and oregon from december 1985 to february 1986. males were significantly outnumbered by females in the flanigan area, but both sexes were represented in approximately equal numbers in the wassuk and beaty's butte areas. hematology and chemistry values averaged 16.4 +/- 0.11, 46.3 +/- 0.28, 9.9 +/- 0.07, 6.9 +/- 0.10, 47.1 +/- 0.24, 16.6 +/- 0.09, 35.2 +/- 0.09, 10.4 +/ ...19883373630
isolation of salem virus, a novel equine paramyxovirus, and assessment of its etiologic role in a disease outbreak.salem virus (salv) is a recently identified equine virus belonging to the family paramyxoviridae. the only known isolate was obtained from a horse that was involved in a disease outbreak of undetermined nature and the circumstances of its isolation suggested an etiologic role. however, the experimental infection of a colostrum-deprived foal failed to reproduce the disease; only mild neutropenia and temperature elevation were recorded. an additional attempt to establish an etiological relationshi ...200212052331
seroprevalence of antibodies to sarcocystis neurona in horses residing in determine seroprevalence of antibodies to sarcocystis neurona in neurologically normal horses residing in 4 regions of oregon and to describe the effects of age, gender, breed, and housing on seroprevalence within each region.19979040840
clinical application of dmso by veterinarians in oregon & washington. 1976817434
west nile virus activity--united states, november 3-8, 2004.during november 3-8, a total of 41 cases of human west nile virus (wnv) illness were reported from seven states (california, maryland, minnesota, new mexico, oregon, tennessee, and texas).200415538322
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