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1.
J Wildl Dis ; 47(3): 612-7, 2011 Jul.
Article in English | MEDLINE | ID: mdl-21719825

ABSTRACT

Upon re-examination of preserved larval chiggers collected from spadefoot toads (Spea bombifrons and Spea multiplicata) in the Southern High Plains of Texas, USA, and identified previously as Hannemania sp., we found them to be Eutrombicula alfreddugesi. A review of previous reports of Eutrombicula spp. chiggers on amphibian hosts provides context for current findings. All members of the genus Hannemania are specialized larval parasites of amphibians, whereas larval E. alfreddugesi are generalist parasites of a wide variety of terrestrial vertebrate hosts that infrequently includes amphibians. Spadefoot toads are previously undocumented hosts for E. alfreddugesi, and observed infestations were unusually prevalent and intense for this chigger on an amphibian host.


Subject(s)
Anura/parasitology , Trombiculiasis/veterinary , Trombiculidae , Animals , Host-Parasite Interactions , Larva , Prevalence , Species Specificity , Texas/epidemiology , Trombiculiasis/epidemiology
2.
J Wildl Dis ; 43(1): 142-4, 2007 Jan.
Article in English | MEDLINE | ID: mdl-17347405

ABSTRACT

Between November 2000 and November 2005, approximately 200 mule deer (Odocoileus hemionus hemionus) and white-tailed deer (Odocoileus virginianus) from western Nebraska were extensively examined for the presence of Elaeophora schneideri, Wehr and Dikmans, 1935; three adult E. schneideri were detected from three mule deer. This represents the first documented occurrence of E. schneideri from wild deer in Nebraska.


Subject(s)
Deer/parasitology , Filariasis/veterinary , Animals , Animals, Wild/parasitology , Disease Reservoirs/veterinary , Filariasis/epidemiology , Filarioidea/isolation & purification , Male , Nebraska/epidemiology
3.
J Wildl Dis ; 36(2): 370-3, 2000 Apr.
Article in English | MEDLINE | ID: mdl-10813621

ABSTRACT

One hundred seventy-eight white-tailed deer (Odocoileus virginianus) and 275 mule deer (Odocoileus hemionus) collected from locker plants in the western 2/3 of Nebraska (USA) in November 1997 were examined for the meningeal worm (Parelaphostrongylus tenuis). Parelaphostrongylus tenuis was identified in 17 (10%) of 168 white-tailed deer and in one (<1%) of 273 mule deer. This is the first naturally occurring infection of P. tenuis recorded in a mule deer.


Subject(s)
Deer/parasitology , Metastrongyloidea/isolation & purification , Strongylida Infections/veterinary , Animals , Brain/parasitology , Brain/pathology , Dura Mater/parasitology , Dura Mater/pathology , Female , Male , Nebraska/epidemiology , Strongylida Infections/epidemiology , Strongylida Infections/parasitology
4.
J Wildl Dis ; 35(1): 101-4, 1999 Jan.
Article in English | MEDLINE | ID: mdl-10073356

ABSTRACT

The meningeal worm (Parelaphostrongylus tenuis) was found in 22 (7%) of 300 white-tailed deer (Odocoileus virginianus) (257 adults, 43 fawns) examined from Nebraska (USA) during November 1996. None of 53 mule deer (Odocoileus hemionus) (47 adults and 6 fawns) examined were infected. Twenty-two white-tailed deer from 18 counties in eastern Nebraska were infected with Parelaphostrongylus tenuis. This is the first record of P. tenuis in white-tailed deer from this state.


Subject(s)
Brain/parasitology , Deer/parasitology , Metastrongyloidea/isolation & purification , Strongylida Infections/veterinary , Animals , Animals, Wild , Female , Male , Nebraska/epidemiology , Strongylida Infections/epidemiology
5.
J Wildl Dis ; 35(1): 105-7, 1999 Jan.
Article in English | MEDLINE | ID: mdl-10073357

ABSTRACT

Lymph nodes from 271 white-tailed deer (Odocoileus virginianus) and mule deer (Odocoileus hemionus) in Nebraska (USA) were examined microscopically for tuberculoid lesions. Lymph nodes lesions in at least one node were found in 12 deer. Lesions were examined with Zeihl-Neelson acid fast stains and by polymerase chain reactions using M. bovis specific probes. No evidence of tuberculosis was found. The small granulomatous lesions were likely caused by other bacteria.


Subject(s)
Deer , Lymph Nodes/pathology , Mycobacterium bovis/isolation & purification , Mycobacterium tuberculosis/isolation & purification , Tuberculosis/veterinary , Animals , Animals, Wild , Lymph Nodes/microbiology , Nebraska/epidemiology , Tuberculosis/epidemiology
6.
J Wildl Dis ; 24(2): 378-9, 1988 Apr.
Article in English | MEDLINE | ID: mdl-3373650

ABSTRACT

During a routine examination of a female Cooper's hawk (Accipiter cooperii) nematodes were found in the thoracic air sacs. A total of 12 females and nine males were recovered and identified as Serratospiculoides amaculata. This is the first record of this parasite found in a raptor, other than a falcon, in North America.


Subject(s)
Birds/parasitology , Nematoda/isolation & purification , Air Sacs/parasitology , Animals , Female , Male
7.
J Wildl Dis ; 23(4): 680-2, 1987 Oct.
Article in English | MEDLINE | ID: mdl-3682096

ABSTRACT

Natural infections of Streptocara crassicauda and Streptocara incognita were diagnosed in four mallards (Anas platyrhynchos) from Red Rock Lakes National Refuge, Beaverhead County, Montana. Lesions at the junctions of the gizzard and proventriculus were associated with the nematodes, and resulted in debilitation, emaciation and death.


Subject(s)
Bird Diseases/parasitology , Ducks , Gizzard, Avian/parasitology , Nematode Infections/veterinary , Animals , Bird Diseases/pathology , Gizzard, Avian/pathology , Montana , Nematode Infections/pathology , Spiruroidea
8.
J Am Vet Med Assoc ; 189(9): 1047-9, 1986 Nov 01.
Article in English | MEDLINE | ID: mdl-3505925

ABSTRACT

The ability of Trichinella spiralis larvae to survive at subfreezing temperatures encysted in the musculature of wild carnivorous mammals was assessed by evaluating motility and infectivity (to rodents) of trichinae at various intervals after storage in frozen skeletal muscle. Fifty to 60% of the larvae in grizzly bear meat were alive after storage for 27 months at -6.5 to -20 C, and 30% to 50% were still alive at 34 months. However, none survived for 38 months, on the basis of infectivity in mice and larval motility. Trichinella larvae survived up to 4 months in frozen (-6.5 to -20 C) wolverine tissue. Viable larvae were not recovered from mountain lion or fisher muscle frozen for 1 month. The effect of postslaughter processing on Trichinella larvae encysted in bear meat was evaluated by use of a similar bioassay procedure. Viability of larvae recovered from black bear meat that had been processed into ham or jerky was not affected by dry curing with a commercial salt mixture. Trichinae from both preparations induced infections in mice (58 to 90 larvae/g of tissue). However, a combination of curing and smoking was consistently lethal to encysted larvae. Viable trichinae were not recovered from ground bear meat preparations (pepperoni, salami, or sausage) processed according to commercial standards.


Subject(s)
Food Preservation , Meat , Trichinella/physiology , Animals , Animals, Wild , Carnivora , Freezing , Meat Products , Mice , Peromyscus
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