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Articles 991 - 1020 of 2199

Full-Text Articles in Immunology and Infectious Disease

Pathogenic New Species Of Eimeria From The Pygmy Rabbit, Brachylagus Idahoensis, In Washington And Oregon, With Description Of The Sporulated Oocyst And Intestinal Endogenous Stages, Donald W. Duszynski, Lisa Harrenstien, Lee Couch, Michael M. Garner Jan 2005

Pathogenic New Species Of Eimeria From The Pygmy Rabbit, Brachylagus Idahoensis, In Washington And Oregon, With Description Of The Sporulated Oocyst And Intestinal Endogenous Stages, Donald W. Duszynski, Lisa Harrenstien, Lee Couch, Michael M. Garner

Harold W. Manter Laboratory of Parasitology: Faculty Publications

In January 2003, fecal samples from 13 live pygmy rabbits, Brachylagus idahoensis (Merriam, 1891), were collected at the Oregon Zoo in Portland, Oregon, and sent to the University of New Mexico (UNM), Albuquerque, New Mexico, to be examined for coccidia. In July 2004, 14 more fecal samples were collected and sent to UNM, 6 from some of the same rabbits and 8 from 16 other rabbits (4 were pooled samples from siblings). In addition, tissue sections from 3 dead rabbits (2 from the Oregon Zoo, 1 from Washington State University) also were examined. Two of 4 (50%) pooled fecal samples …

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Phylogenetic Relationships Of Palaeacanthocephala (Acanthocephala) Inferred From Ssu And Lsu Rdna Gene Sequences, Martín García-Varela, Steven A. Nadler Jan 2005

Phylogenetic Relationships Of Palaeacanthocephala (Acanthocephala) Inferred From Ssu And Lsu Rdna Gene Sequences, Martín García-Varela, Steven A. Nadler

Harold W. Manter Laboratory of Parasitology: Faculty Publications

The Palaeacanthocephala is traditionally represented by 2 orders, Echinorhynchida and Polymorphida, with 10 and 3 families, respectively. To test the monophyly of the class, these 2 orders, and certain families, phylogenies were inferred using nuclear small-subunit (SSU) and large-subunit (LSU) ribosomal DNA sequences obtained for 29 species representing 10 families, 2 other classes of acanthocephalans, and 3 rotifer outgroups. Phylogenetic relationships were inferred by analyzing combined SSU and LSU sequences using maximum parsimony (MP) and maximum likelihood (ML) methods. Parsimony and ML trees inferred from combined analysis of these rDNA data strongly supported monophyly of Palaeacanthocephala and provided good resolution …

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Pseudostertagia Bullosa (Nematoda: Trichostrongyloidea) In Artiodactyl Hosts From North America: Redescription And Comments On Systematics, Eric P. Hoberg, A. Abrams Jan 2005

Pseudostertagia Bullosa (Nematoda: Trichostrongyloidea) In Artiodactyl Hosts From North America: Redescription And Comments On Systematics, Eric P. Hoberg, A. Abrams

Harold W. Manter Laboratory of Parasitology: Faculty Publications

A relationship for Pseudostertagia bullosa within the trichostrongyloids has been enigmatic or unresolved. Studies of the synlophe in males and females of P. bullosa revealed a tapering system anterior to the deirids and a pattern of parallel ridges extending to near the caudal extremity in both lateral and median fields. Structurally, the synlophe differs considerably from that seen among the Cooperiinae and exhibits homoplasy with respect to ridge systems among some Ostertagiinae. Other structural characters due to symplesiomorphy, homoplasy or because they represent autapomorphies do not serve to reveal the putative relationships for P. bullosa with other trichostrongyloids. Although somewhat …

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Molecular Phylogenetics And Diagnosis Of Anisakis, Pseudoterranova, And Contracaecum From Northern Pacific Marine Mammals, Steven A. Nadler, Stefano D'Amelio, Murray D. Dailey, Lia Paggi, Sandra Siu, Jusy A. Sakanari Jan 2005

Molecular Phylogenetics And Diagnosis Of Anisakis, Pseudoterranova, And Contracaecum From Northern Pacific Marine Mammals, Steven A. Nadler, Stefano D'Amelio, Murray D. Dailey, Lia Paggi, Sandra Siu, Jusy A. Sakanari

Harold W. Manter Laboratory of Parasitology: Faculty Publications

Individual specimens of Anisakis, Pseudoterranova, and Contracaecum collected from marine mammals inhabiting northern Pacific waters were used for comparative diagnostic and molecular phylogenetic analyses. Forty-eight new sequences were obtained for this study of 14 Anisakis taxa, 8 Pseudoterranova taxa, 4 Contracaecum taxa, and 4 outgroup species. Partial 28S (LSU) and complete internal transcribed spacer (ITS-1, 5.8S, ITS-2) ribosomal DNA was amplified by the polymerase chain reaction and sequenced. Sequences of ITS indicated that Pseudoterranova specimens from Zalophus californianus (California sea lion), Mirounga angustirostris (northern elephant seal), Phoca vitulina (harbor seal), Enhydra lutris (sea otter), and Eumetopias jubatus (Steller’s …

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Development And Pathogenesis Of Parelaphostrongylus Odocoilei (Nematoda: Protostrongylidae) In Experimentally Infected Thinhorn Sheep (Ovis Dalli), Emily J. Jenkins, Eric P. Hoberg, L. Polley Jan 2005

Development And Pathogenesis Of Parelaphostrongylus Odocoilei (Nematoda: Protostrongylidae) In Experimentally Infected Thinhorn Sheep (Ovis Dalli), Emily J. Jenkins, Eric P. Hoberg, L. Polley

Harold W. Manter Laboratory of Parasitology: Faculty Publications

Recently, the protostrongylid nematode Parelaphostrongylus odocoilei has been reported in a new host species, thinhorn sheep (Ovis dalli). For the first time, we completed the life cycle of P. odocoilei in three Stone’s sheep (O. dalli stonei) and two thinhorn hybrids (O. dalli stonei × O. dalli dalli), each infected with 200 third-stage larvae from slugs (Deroceras laeve). The prepatent period ranged from 68 days to 74 days, and shedding of first-stage larvae (L1) peaked at >10,000 L1 per gram of feces between 90 and 110 days postinfection. A total of 75, …

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Family Rhopaliidae Looss, 1899, Valentin V. Radev, Scott Lyell Gardner, Ivan Kanev Jan 2005

Family Rhopaliidae Looss, 1899, Valentin V. Radev, Scott Lyell Gardner, Ivan Kanev

Harold W. Manter Laboratory of Parasitology: Faculty Publications

Members of the family Rhopaliidae Looss, 1899 include digenetic trematodes that are parasites of marsupials in the Nearctic and Neotropical regions. These forms are characterized by having two anteriorly directed proboscides armed with spines and situated bilaterally relative to the oral sucker. The family was first established by Looss (1899) as the Rhopaliadae. Braun (1901b) incorrectly spelled the subfamily name as Rhopaliadinae. These trematodes were further studied and redescribed by Fuhrmann (1928) and Bresslau (1932), while Pratt (1902) appears to have been the first to consider the group to be related to the schinostomes. Viana (1924) emended the spelling of …

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Increasing Interest In Parasitology At The Past Three International Mammalogical Congresses Held In 1997, 2001 And 2005: Mammals, Parasites, Zoonoses And Biodiversity, Scott Lyell Gardner, Mitsuhiko Asakawa, Luis A. Ruedas, Kenichi Takahashi Jan 2005

Increasing Interest In Parasitology At The Past Three International Mammalogical Congresses Held In 1997, 2001 And 2005: Mammals, Parasites, Zoonoses And Biodiversity, Scott Lyell Gardner, Mitsuhiko Asakawa, Luis A. Ruedas, Kenichi Takahashi

Harold W. Manter Laboratory of Parasitology: Faculty Publications

We summarized the data from the past three TTC (now IMC) meetings to examine the potential trends in presentation of parasites of mammals at the meeting. The lists include titles and authors of papers given in symposia, poster sessions, and oral presentations related to diseases, zoonoses, parasites, and causative agents of diseases of sylvatic mammals. Our analysis shows that there has been an increase in the number of papers (from 2.8% in 1997 to 5.1% in 2005) presented at the International Mammalogical Meetings. We also show that there are potentially more than 27,000 species of parasites (broadly defined) currently inhabiting …

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Parasites Of The American White Pelican, Robin M. Overstreet, Stephen S. Curran Jan 2005

Parasites Of The American White Pelican, Robin M. Overstreet, Stephen S. Curran

Harold W. Manter Laboratory of Parasitology: Faculty Publications

Metazoan symbionts, including parasites, infecting the American white pelican (AWP) Pelecanus erythrorhynchos comprise a list of 75 species, 7 of which are new host records. Several new geographic records are also presented, but generally these have a low value because of the migratory nature of the bird. Evidence suggests that some parasites, mostly flies and other arthropods but also nematodes and digeneans, produce detrimental behavioral or pathologic changes in the AWP. Some of the arthropods transmit microbial agents to the pelican. Two digeneans that have the AWP as a definitive host harm and even kill their catfish intermediate host, especially …

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The Pathologic Copepod Phrixocephalus Cincinnatus (Copepoda: Pennellidae) In The Eye Of Arrowtooth Flounder, Atherestes Stomias, And Rex Sole, Glyptocephalus Zachirus, From British Columbia, Reginald B. Blaylock, Robin M. Overstreet, Alexandra B. Morton Jan 2005

The Pathologic Copepod Phrixocephalus Cincinnatus (Copepoda: Pennellidae) In The Eye Of Arrowtooth Flounder, Atherestes Stomias, And Rex Sole, Glyptocephalus Zachirus, From British Columbia, Reginald B. Blaylock, Robin M. Overstreet, Alexandra B. Morton

Harold W. Manter Laboratory of Parasitology: Faculty Publications

We report Phrixocephalus cincinnatus, a pennellid copepod infecting the eyes of flatfishes, from a single specimen of rex sole, Glyptocephalus zachirus, for the first time. In the typical host, the arrowtooth flounder, Atherestes stomias, the parasite occurred commonly in sampled populations from the Broughton Archipelago in British Columbia, infected primarily the right eye of the flounder, and on only one occasion presented more than two parasites per eye. The copepod attached to the choroid layer and ramified throughout the posterior compartment of the eye, resulting in the disruption of the retina and probably impairing host vision. Inflammation …

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Abomasal Parasites In Wild Sympatric Cervids, Red Deer, Cervus Elaphus, And Fallow Deer, Dama Dama, From Three Localities Across Central And Western Spain: Relationship To Host Density And Park Management, Mónica Santín-Durán, José M. Alunda, Eric P. Hoberg, Concepción De La Fuente Dec 2004

Abomasal Parasites In Wild Sympatric Cervids, Red Deer, Cervus Elaphus, And Fallow Deer, Dama Dama, From Three Localities Across Central And Western Spain: Relationship To Host Density And Park Management, Mónica Santín-Durán, José M. Alunda, Eric P. Hoberg, Concepción De La Fuente

Harold W. Manter Laboratory of Parasitology: Faculty Publications

A survey of abomasal parasites in cervids from Central Spain was conducted at three sites, Quintos de Mora (Toledo), Maluéñez de Arriba (Cáceres), and La Herguijuela (Cáceres). Commonly occurring helminths belonged to three polymorphic species of the Ostertagiinae: Spiculopteragia asymmetrica/S. quadrispiculata, Ostertagia leptospicularis/O. kolchida, and O. drozdzi/O. ryjikovi. Trichostrongylus axei was found in very few cases. Ostertagia drozdzi/O. ryjikovi and the minor male morphotype, S. quadrispiculata, are reported for the first time in red deer from Spain. The three ostertagiine species are also reported for the first time …

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Observations On Myiasis By The Calliphorids, Bufolucilia Silvarum And Bufolucilia Elongata, In Wood Frogs, Rana Sylvatica, From Southeastern Wisconsin, Matthew G. Bolek, John J. Janovy Jr. Oct 2004

Observations On Myiasis By The Calliphorids, Bufolucilia Silvarum And Bufolucilia Elongata, In Wood Frogs, Rana Sylvatica, From Southeastern Wisconsin, Matthew G. Bolek, John J. Janovy Jr.

John J. Janovy, Jr. Publications

Larvae of certain species of blowflies (Calliphoridae) can cause myiasis in frogs and toads, but there are few reports from North American amphibians. Of these, most are from toads (bufonids). In this study, we observe primary myiasis in a population of juvenile wood frogs, Rana sylvatica, collected on August 22-23, 2003, from southeastern Wisconsin and compare our observations with previous studies on myiasis from toads. Two (5%) of 39 frogs were infected by the blow fly Bufolucilia silvarum, with an intensity of 28 and 31, whereas 1 (2.5%) of 39 frogs was infected by the blow fly Bufolucilia …

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American Society Of Parasitologists Newsletter, V. 26, No. 3, Fall 2004, Scott Lyell Gardner Oct 2004

American Society Of Parasitologists Newsletter, V. 26, No. 3, Fall 2004, Scott Lyell Gardner

American Society of Parasitologists: Newsletter

An issue of the American Society of Parasitologists' quarterly newsletter, also called the Journal of Parasitology Newsletter.

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Beyond Bloodletting: Fda Gives Leeches A Medical Makeover, Carol Rados Oct 2004

Beyond Bloodletting: Fda Gives Leeches A Medical Makeover, Carol Rados

Harold W. Manter Laboratory of Parasitology: Library Materials

In June 2004, the Food and Drug Administration cleared the first application for leeches (Hirudo medicinalis) to be used in modern medicine as medical devices. By definition, a medical device is an article intended to diagnose, cure, treat, prevent, or mitigate a disease or condition, or to affect a function or structure of the body, that does not achieve its primary effect through a chemical action and is not metabolized.

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New Species Of Cinclotaenia Macy, 1973 (Cyclophyllidea: Dilepididae) From Cinclus Leucocephalus Tschudi (Passeriformes: Cinclidae) In Bolivia, Boyko B. Georgiev, Scott Lyell Gardner Oct 2004

New Species Of Cinclotaenia Macy, 1973 (Cyclophyllidea: Dilepididae) From Cinclus Leucocephalus Tschudi (Passeriformes: Cinclidae) In Bolivia, Boyko B. Georgiev, Scott Lyell Gardner

Harold W. Manter Laboratory of Parasitology: Faculty Publications

Two new species of Cinclotaenia (Cyclophyllidea: Dilepididae) are described from the small intestine of Cinclus leucocephalus (Aves: Passeriformes: Cinclidae) collected in the Yungas region of Bolivia. Cinclotaenia minuta n. sp. is characterized by possessing a minute strobila with a maximum body length of 1.58 mm, consisting of 5–10 proglottids, 19–22 rostellar hooks with lengths from 16 to 17 mm, 12–17 testes per proglottid, and eggs forming packets without filaments. Cinclotaenia boliviensis n. sp. has bandlike strobila with a length up to 26 mm with 67–74 proglittids, 22 rostellar hooks with length 39–42 mm, 43–68 testes, and eggs forming packets possessing …

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Two Species Of Synhimantus (Dispharynx) Railliet, Henry And Sisoff, 1912 (Nematoda: Acuarioidea: Acuariidae), In Passerine Birds From The Área De Conservación Guanacaste, Costa Rica, Luping Zhang, Daniel R. Brooks, Douglas Causey Oct 2004

Two Species Of Synhimantus (Dispharynx) Railliet, Henry And Sisoff, 1912 (Nematoda: Acuarioidea: Acuariidae), In Passerine Birds From The Área De Conservación Guanacaste, Costa Rica, Luping Zhang, Daniel R. Brooks, Douglas Causey

Harold W. Manter Laboratory of Parasitology: Faculty Publications

Members of 2 species of Synhimantus (Dispharynx) live under the lining of the gizzard in passerine birds from the Área de Conservación Guanacaste, Costa Rica. Synhimantus (Dispharynx) nasuta (Rudolphi, 1819) occurs in Thraupis episcopus, Turdus grayi, Caryothraustes poliogaster, Platyrinchus cancrominus, Ramphocaenus melanurus, Vermivora peregrina, and Geothlypis poliocephala. A single male, in Turdus grayi, apparently representing a new species, distinguishable from all other species of Synhimantus (Dispharynx) by having similar shaped left and right spicules, is described but not named.

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Phylogeny For Species Of Haemonchus (Nematoda: Trichostrongyloidea): Considerations Of Their Evolutionary History And Global Biogeography Among Camelidae And Pecora (Artiodactyla), Eric P. Hoberg, J. Ralph Lichtenfels, Lynda M. Gibbons Oct 2004

Phylogeny For Species Of Haemonchus (Nematoda: Trichostrongyloidea): Considerations Of Their Evolutionary History And Global Biogeography Among Camelidae And Pecora (Artiodactyla), Eric P. Hoberg, J. Ralph Lichtenfels, Lynda M. Gibbons

Harold W. Manter Laboratory of Parasitology: Faculty Publications

Phylogenetic analysis of 25 morphological characters among the 12 species of Haemonchus resulted in one most parsimonious tree (60 steps; consistency index 5 0.67, retention index 5 0.80). Monophyly for Haemonchus was diagnosed by three unequivocal synapomorphies, including the asymmetric origin of the dorsal ray, relative size of the ventral rays, and the presence of a barb on each spicule tip. Species of Haemonchus have complex histories with respect to host and geographic associations: (1) origins in Africa with basal diversification in antelopes (H. krugeri, H. lawrencei, H. dinniki, H. horaki), (2) independent events of …

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Waccnes Containing Bovine Herpe Svirus 1 Attenuated By Mutation In Latency-Related Gene, Clinton J. Jones Sep 2004

Waccnes Containing Bovine Herpe Svirus 1 Attenuated By Mutation In Latency-Related Gene, Clinton J. Jones

School of Veterinary and Biomedical Sciences: Faculty Publications

Vaccines for pathogenic Strains of bovine herpesvirus 1 (BHV-1) which are based on attenuated BHV-1 having a mutation in the latency-related gene are provided. Live, attenuated vaccines are also provided which express anti gens from other viral or bacterial pathogens and thus form the basis of a variety of vaccines.

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Review Of Parasites And Diseases Of Wild Birds In Florida By D. J. Forrester And M. G. Spalding; University Press Of Florida, 2003, John J. Janovy Jr. Aug 2004

Review Of Parasites And Diseases Of Wild Birds In Florida By D. J. Forrester And M. G. Spalding; University Press Of Florida, 2003, John J. Janovy Jr.

John J. Janovy, Jr. Publications

Review of Parasites and Diseases of Wild Birds in Florida by D. J. Forrester and M. G. Spalding, publsihed by the University Press of Florida, 2003; ISBN: 0-8130-2560-5.

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A New Species Of Pelecitus (Filarioidea: Onchocercidae) From The Endnagered Tehuantepec Jackrabbit Lepus Flavigularis, F. Agustin Jimenez-Ruiz, Scott Lyell Gardner, Fernando A. Cervantes, Consuelo Lorenzo Aug 2004

A New Species Of Pelecitus (Filarioidea: Onchocercidae) From The Endnagered Tehuantepec Jackrabbit Lepus Flavigularis, F. Agustin Jimenez-Ruiz, Scott Lyell Gardner, Fernando A. Cervantes, Consuelo Lorenzo

Harold W. Manter Laboratory of Parasitology: Faculty Publications

Pelecitus meridionaleporinus n. sp. from the Tehuantepec jackrabbit is described. The new species differs from Pelecitus helicinus (Molin, 1860) in having delicate transverse striations, a salient vulva, and a readily apparent preesophageal ring; P. helicinus has teardrop cells around the vulva, which are lacking in the species presently described. The new species is different from Pelecitus scapiceps (Leidy, 1886) in having the vulva anterior to the esophageal–intestinal junction and wider lateral alae. Pelecitus scapiceps is found in the tarsal bursa of the hind feet of lagomorphs, whereas P. helicinus is found around tendons of legs and feet of birds. Pelecitus …

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American Society Of Parasitologists Newsletter, V. 26, No. 2, Summer 2004, Scott Lyell Gardner Jul 2004

American Society Of Parasitologists Newsletter, V. 26, No. 2, Summer 2004, Scott Lyell Gardner

American Society of Parasitologists: Newsletter

An issue of the American Society of Parasitologists' quarterly newsletter, also called the Journal of Parasitology Newsletter.

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Comments On The Gonotyl Of Proctocaecum Macroclemidis (Tkach And Snyder, 2003) N. Comb. (Digenea: Acanthostomidae: Acanthostominae), With A Key To The Genera Of Acanthostominae And New Phylogenetic Tree For Proctocaecum Baugh, 1957, Daniel R. Brooks Jun 2004

Comments On The Gonotyl Of Proctocaecum Macroclemidis (Tkach And Snyder, 2003) N. Comb. (Digenea: Acanthostomidae: Acanthostominae), With A Key To The Genera Of Acanthostominae And New Phylogenetic Tree For Proctocaecum Baugh, 1957, Daniel R. Brooks

Harold W. Manter Laboratory of Parasitology: Faculty Publications

The species recently described as Acanthostomum macroclemidis possesses the gonotyl in the form of a solid muscular pad uniquely diagnostic for species of Proctocaecum and is accordingly transferred to that genus. An artificial key to the 5 acanthostomine genera, as well as an updated phylogenetic hypothesis for the 10 known species of Proctocaecum, based on 11 characters and including 2 species described since the last phylogenetic analysis, are presented. The single most parsimonious phylogenetic tree with a consistency index of 87.5% suggests that Proctocaecum originated in Africa and spread to North America and South America before the breakup of …

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Torquatoides Trogoni N. Sp. And Excisa Ramphastina N. Sp. (Nematoda: Habronematoidea: Habronematidae) In Birds From The Área De Conservación Guanacaste, Costa Rica, Luping Zhang, Daniel R. Brooks Jun 2004

Torquatoides Trogoni N. Sp. And Excisa Ramphastina N. Sp. (Nematoda: Habronematoidea: Habronematidae) In Birds From The Área De Conservación Guanacaste, Costa Rica, Luping Zhang, Daniel R. Brooks

Harold W. Manter Laboratory of Parasitology: Faculty Publications

Two new species of habronematid nematodes are described in birds from the Area de Conservacion Guanacaste, Costa Rica. Torquatoides trogoni n. sp., in Trogon massena, can be distinguished from T. torquata, T. bengalensis, and T. crotophaga in lacking lateral alae. Among species lacking lateral alae, the new species differs from T. balanocephala in having 14 versus 8-10 cephalic cuticular plaques, 21-22 versus 13-17 pairs of preanal papillae, and a beak-shaped versus U-shaped gubernaculum. The new species differs from T. singhi in body length, in having 21-22 versus 10 pairs of precloacal papillae, longer spicules, and larger eggs. …

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Prevalence Of Parasites In Amphipods Diporeia Spp. From Lakes Michigan And Huron, Usa, Gretchen A. Messick, Robin M. Overstreet, Thomas F. Nalepa, Sue Tyler May 2004

Prevalence Of Parasites In Amphipods Diporeia Spp. From Lakes Michigan And Huron, Usa, Gretchen A. Messick, Robin M. Overstreet, Thomas F. Nalepa, Sue Tyler

Harold W. Manter Laboratory of Parasitology: Faculty Publications

Amphipods of Diporeia spp. have declined considerably during the last decade in the Great Lakes. We examined the possibility that disease may be affecting these populations. A histological survey assessed the parasites in species of Diporeia within Lakes Huron and Michigan, USA, and the host response to some of them and to unknown factors. Amphipods were found to have an intranuclear inclusion body, and were hosts to a rickettsia-like organism, fungi, a haplosporidian, a microsporidian, epibiotic ciliates, a gregarine, a cestode, acanthocephalans and nodule formations. Epibiotic ciliates were most common (37% prevalence of infection), but a microsporidian (3.8%), a rickettsia-like …

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Life Cycle And Paratenesis Of American Gordiids (Nematomorpha: Gordiida), Ben Hanelt, John J. Janovy Jr. Apr 2004

Life Cycle And Paratenesis Of American Gordiids (Nematomorpha: Gordiida), Ben Hanelt, John J. Janovy Jr.

John J. Janovy, Jr. Publications

To complete their life cycle, gordiids must make a transition from aquatic to terrestrial environments. However, epibenthic aquatic larvae and their terrestrial definitive hosts do not overlap in habitat. This has led many investigators to suggest that infections are acquired through the ingestion of insects, which become infected as aquatic larvae with gordiid cysts and subsequently carry gordiids to land. This proposed life cycle was experimentally tested using three common American species of gordiids: Gordius robustus, Paragordius varius, and Chordodes morgani. Cysts of all three species survived the metamorphosis of Tanytarsus sp., a midge. Subsequent infection trials of …

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American Society Of Parasitologists Newsletter, V. 26, No. 1, Spring 2004, Scott Lyell Gardner Apr 2004

American Society Of Parasitologists Newsletter, V. 26, No. 1, Spring 2004, Scott Lyell Gardner

American Society of Parasitologists: Newsletter

An issue of the American Society of Parasitologists' quarterly newsletter, also called the Journal of Parasitology Newsletter.

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“Emerging” Parasitic Infections In Arctic Ungulates, Susan J. Kutz, Eric P. Hoberg, John Nagy, Lydden Polley, Brett Elkin Apr 2004

“Emerging” Parasitic Infections In Arctic Ungulates, Susan J. Kutz, Eric P. Hoberg, John Nagy, Lydden Polley, Brett Elkin

Harold W. Manter Laboratory of Parasitology: Faculty Publications

Important drivers for emergence of infectious disease in wildlife include changes in the environment, shrinking habitats or concentration of wildlife, and movement of people, animals, pathogens, or vectors. In this paper we present three case-studies of emerging parasitic infections and diseases in ungulates in the Canadian north. First we discuss climate warming as an important driver for the emergence of disease associated with Umingmakstrongylus pallikuukensis, a nematode lungworm of muskoxen. Then we examine how Protostrongylus stilesi, the sheep lungworm, emerged (or re-emerged) in muskoxen after re-introduction of this host into its historical range made it sympatric with Dall’s …

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Procyrnea Chabaud, 1958 (Nematoda: Habronematoidea: Habronematidae) In Birds From The Area De Conservación Guanacaste, Costa Rica, Including Descriptions Of 3 New Species, Luping Zhang, Daniel R. Brooks, Douglas Causey Apr 2004

Procyrnea Chabaud, 1958 (Nematoda: Habronematoidea: Habronematidae) In Birds From The Area De Conservación Guanacaste, Costa Rica, Including Descriptions Of 3 New Species, Luping Zhang, Daniel R. Brooks, Douglas Causey

Harold W. Manter Laboratory of Parasitology: Faculty Publications

Four species of Procyrnea were collected in birds from the Área de Conservación Guanacaste, Costa Rica. ,i>Procyrnea brevicaudata,/i> n. sp. in Crypturellus cinnamomeus resembles P. ficheuri, P. murrayi, P. ameerae, P. dollfusi, and P. aptera in lacking lateral alae but differs from all these species in having two longitudinal ridges on the left side of the body, in having a sinistral rather than ventral vulvar opening, and in having dorsally bent rather than straight female tails. Procyrnea mawsonae n. sp., in Buteo magnirostris, is similar to P. strialata in body size and in having …

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Parallopharynx Spp. (Trematoda: Digenea: Plagiorchioidea) In Iguanian Lizards From The Área De Conservación Guanacaste, Guanacaste, Costa Rica, Including Parallopharynx Matternae N. Sp. In Basiliscus Basiliscus (Squamata: Iguania: Corytophanidae), David Zamparo, Daniel R. Brooks, Vasyl Tkach, Beatriz Rodriguez Apr 2004

Parallopharynx Spp. (Trematoda: Digenea: Plagiorchioidea) In Iguanian Lizards From The Área De Conservación Guanacaste, Guanacaste, Costa Rica, Including Parallopharynx Matternae N. Sp. In Basiliscus Basiliscus (Squamata: Iguania: Corytophanidae), David Zamparo, Daniel R. Brooks, Vasyl Tkach, Beatriz Rodriguez

Harold W. Manter Laboratory of Parasitology: Faculty Publications

We report three species of the digenean genus Parallopharynx, one previously undescribed, from the Área de Conservación Guanacaste (ACG) in northwestern Costa Rica. Parallopharynx gonzalezi, which was originally described in Basiliscus sp. and Ctenosaura similis from central Costa Rica, inhabits C. quinquecarinata; P. jonesi, originally described in Anolis lionotus (syn. Norops oxylophus) from Nicaragua, inhabits N. oxylophus, N. biporcatus, and Basiliscus basiliscus; and the new species, which inhabits B. basiliscus. Parallopharynx matternae n. sp. differs from all other members of the genus by having a metraterm extending posteriad from the genital …

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Mapping The Presence Of Wolbachia Pipientis On The Phylogeny Of Filarial Nematodes: Evidence For Symbiont Loss During Evolution, Maurizio Casiraghi, Odile Bain, Ricardo Guerrero, Coralie Martin, Vanessa Pocacqua, Scott Lyell Gardner, Alberto Francheschi, Claudio Bandi Feb 2004

Mapping The Presence Of Wolbachia Pipientis On The Phylogeny Of Filarial Nematodes: Evidence For Symbiont Loss During Evolution, Maurizio Casiraghi, Odile Bain, Ricardo Guerrero, Coralie Martin, Vanessa Pocacqua, Scott Lyell Gardner, Alberto Francheschi, Claudio Bandi

Harold W. Manter Laboratory of Parasitology: Faculty Publications

Wolbachia pipientis is a bacterial endosymbiont associated with arthropods and filarial nematodes. In filarial nematodes, W. pipientis has been shown to play an important role in the biology of the host and in the immuno-pathology of filariasis. Several species of filariae, including the most important parasites of humans and animals (e.g. Onchocerca volvulus, Wuchereria bancrofti and Dirofilaria immitis) have been shown to harbor these bacteria. Other filarial species, including an important rodent species (Acanthocheilonema viteae), which has been used as a model for the study of filariasis, do not appear to harbor these symbionts. There are …

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Parapharyngodon Duniae N. Sp. (Nematoda: Pharyngodonidae) In Phrynohyas Venulosa (Anura: Hylidae) From The Área De Conservación Guanacaste, Guanacaste, Costa Rica, Charles R. Bursey, Daniel R. Brooks Feb 2004

Parapharyngodon Duniae N. Sp. (Nematoda: Pharyngodonidae) In Phrynohyas Venulosa (Anura: Hylidae) From The Área De Conservación Guanacaste, Guanacaste, Costa Rica, Charles R. Bursey, Daniel R. Brooks

Harold W. Manter Laboratory of Parasitology: Faculty Publications

Parapharyngodon duniae n. sp. (Nematoda: Pharyngodonidae) in the large intestine of the veined tree frog, Phrynohyas venulosa, from the Área de Conservación Guanacaste in northwestern Costa Rica is described and illustrated. Parapharyngodon duniae n. sp. represents the 34th species assigned to the genus, the 10th species from the Neotropical Realm, and only the third species to parasitize anurans. It is distinguished from the other Neotropical species by having postbulbar ovaries and a prebulbar excretory pore.

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