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Journal of Parasitology

Kaylee S Herzog, Kirsten Jensen
Five new species of the elasmobranch tapeworm genus Anthocephalum Linton, 1890 (Rhinebothriidea: Anthocephaliidae Ruhnke, Caira and Cox, 2015) are described from the mangrove whipray, Urogymnus granulatus (Macleay) from the Solomon Islands and northern Australia. Anthocephalum blairi n. sp., Anthocephalum gravisi n. sp., Anthocephalum haroldsoni n. sp., Anthocephalum mounseyi n. sp., and Anthocephalum ruhnkei n. sp. differ from one another and their congeners based on quantitative and qualitative features of the scolex and proglottid anatomy...
July 18, 2018: Journal of Parasitology
Julio Morales, José Juan Martínez, Nelly Villalobos, Marisela Hernandez, Rubén Ramírez, Berenice Salgado Estrada, Herminio Jiménez, Alfredo Figueroa, Luisa María Sánchez, Eduardo Lazcano, Agnes Fleury, Aline S de Aluja, Edda Sciutto
Serological tests are needed to estimate the prevalence of Taenia solium cysticercosis in endemic rural areas. The predictive value of serum antibody levels to diagnose porcine cysticercosis and human neurocysticercosis (NC) was herein assessed by ELISA, using serum samples from 247 backyard pigs (141 without cysticercosis and 106 with cysticercosis) and 183 human subjects (116 non-NC subjects and 67 NC patients) in Central Mexico diagnosed by necropsy and computed tomography, respectively. A sensitivity of 77...
July 18, 2018: Journal of Parasitology
Juan Jose Zárate Ramos
We provide the first report of Acanthocephala (Prosthenorchis elegans) in Mexican non-human primates. There has been no known treatment against this parasite except for surgical removal, and this has been relatively ineffective because of the small juveniles. We report the presence of P. elegans in a captive breeding colony of squirrel monkeys (Saimiri sciureus) in Mexico and we describe a successful treatment protocol. Treatment involved 2 steps: oral administration of the drugs Loperamide (0.5 mg/0.9 kg/3 days) and Niclosamide (0...
July 18, 2018: Journal of Parasitology
Erhan Zeytun, Yücel Karakurt
The objective of this study was to examine the efficacy of 7.5% tea tree oil (TTO) eyelash shampoo on the density of Demodex (Acari: Demodicidae) and ocular symptoms in patients with demodectic blepharitis. A total of 135 patients diagnosed with demodectic blepharitis, following clinical inspection and parasitological examinations, were included in the study. Patients were treated with eyelash shampoo, with or without TTO. Full Demodex reduction was attained in 36% of the patients who used eyelash shampoo with TTO, and the average Demodex count was reduced from 6...
July 18, 2018: Journal of Parasitology
Eliana Lorenti, Sara Rodriguez, Florencia Cremonte, Guillermo D'Elía, Julia Inés Diaz
This study verifies the identity of adult specimens of the parasite Profilicollis chasmagnathi (Achantocephala, Polymorphidae) recovered from kelp gulls Larus dominicanus (Aves, Laridae), and cystacanths found in crabs Cyrtograpsus altimanus (Crustacea, Decapoda) from the southwestern Atlantic coast. The life cycle of this parasite is elucidated in the intertidal zone of Patagonia, Argentina, based on morphological and molecular data. Preferences by size and sex of the intermediate host and seasonal variation of this parasite are provided, contributing to the knowledge of this host-parasite association...
July 18, 2018: Journal of Parasitology
Rosario Mata-López, Berenice Adán-Torres, Luis García-Prieto
Thirty specimens of the Montezuma's frog Lithobates montezumae were collected in San Pedro Tlaltizapán, in the Nearctic-Neotropical transition zone of Mexico, in April, 2013, in order to establish the helminth infracommunity structure harbored by this amphibian host. A total of 5, 493 individual helminths were obtained representing 6 species (3 trematodes and 3 nematodes). The depauperate structure of the helminth infracommunities established for the studied frogs herein (richness= 2.4; mean abundance= 183...
July 16, 2018: Journal of Parasitology
Julian F Hillyer
No abstract text is available yet for this article.
July 16, 2018: Journal of Parasitology
Heike Lutermann, Voitto Haukisalmi, Kerstin Junker
The endoparasite fauna of Ansell's mole-rat, Fukomys anselli (Burda, Zima, Scharff, Macholán and Kawalika) (Rodentia, Bathyergidae) was studied for the first time near Lusaka, Zambia. We recovered 7 endoparasite taxa including 5 nematodes (Hexametra sp., Protospirura numidica Seurat, 1914, Protospirura muricola Gedoelst, 1916, Protospirura sp. and Mammalakis zambiensis Junker, Lutermann and Mutafchiev, 2017) and 2 cestodes (Inermicapsifer sp. and Rodentolepis cf. microstoma (Dujardin, 1845)) from 272 individuals sampled between February 2009 and February 2010...
July 16, 2018: Journal of Parasitology
Janet Koprivnikar
Not applicable.
July 16, 2018: Journal of Parasitology
Marko Dmitric, Zoran Debeljak, Dejan Vidanovic, Milanko Sekler, Nikola Vaskovic, Kazimir Matovic, Nedjeljko Karabasil
After a human trichinellosis outbreak in Zlatibor District (Serbia), in 2016, Trichinella larvae were found in wild boar (Sus scrofa) meat products. One hundred and fourteen people were infected during the outbreak. The larvae were determined to be Trichinella britovi using the polymerase chain reaction method. Trichinella britovi has previously been identified in Serbia, but this is the first case of the species being confirmed in food samples linked to human trichinellosis. The results of the study confirmed that the T...
July 11, 2018: Journal of Parasitology
Fernando Murata, Camila Cerqueira-Cezar, Oliver Kwok, Keshaw Tiwari, Ravindra Sharma, Chunlei Su, J P Dubey
Rodents are known to be reservoir hosts of Toxoplasma gondii infection for other animals, including cats and pigs. From February to July, 2017, 167 rats (Rattus norvegicus) were trapped in Grenada and serum, heart, skeletal muscle and brain were examined for T. gondii infection by serological examination (Modified agglutination test, MAT, 1:25) for T. gondii antibodies and for viable parasites by bioassay in mice. Samples of heart, skeletal muscle and brain of all rats were bioassayed in Swiss Webster (SW) outbred albino mice and interferon gamma gene knockout (KO) mice...
July 11, 2018: Journal of Parasitology
Camila S Pantoja, David Ivan Hernández-Mena, Gerardo Perez-Ponce de Leon, Jose Luis Luque
The freshwater fish digenean Pseudosellacotyla lutzi (Freitas, 1941) Yamaguti, 1954 has had an unsettled taxonomic history, and has at various times been classified as a member of Nanophyetidae, Heterophyidae, Microphallidae, Faustulidae, and Cryptogonimidae. Nine individual specimens of the trahira, Hoplias malabaricus (Bloch, 1794), were sampled in the Paraná River basin, Paraná State, Brazil; twenty-two specimens of P. lutzi were collected. One specimen of P. lutzi was used to obtain a sequence of the domains D1-D3 of the 28S rRNA gene, and to perform a phylogenetic analysis to assess their position and classification within Plagiorchiida...
July 10, 2018: Journal of Parasitology
Abdullah D Alanazi
Trypanosoma evansi is the most widespread of the pathogenic salivarian trypanosomes; it causes a serious disease called surra that affects domestic animals, such as camels, horses and dogs, and often leads to reduced productivity and economic losses. Therefore, the objectives of the present study were to determine the prevalence rates of trypanosomiasis using 3 parasitological tests (wet blood film [WBF], Giemsa's staining, and micro-hematocrit centrifugation technique [MHCT]) and polymerase chain reaction (PCR) among stray dogs from Riyadh province, Saudi Arabia...
July 10, 2018: Journal of Parasitology
Elizabeth A Hartnett, Alexandre N Léveillé, Shannon K French, Katie M Clow, Lenny Shirose, Claire M Jardine
Macracanthorhynchus ingens is an acanthocephalan parasite commonly found in raccoons (Procyon lotor) in the United States. Little is known, however, about the prevalence and distribution of M. ingens in raccoons in Canada. Our objective was to investigate the prevalence, distribution and risk factors associated with M. ingens infection in raccoons in southern Ontario, Canada. Raccoon carcasses submitted to the Ontario/Nunavut region of the Canadian Wildlife Health Cooperative (CWHC) for post-mortem from June 2016 to January 2017 (n = 380) were examined for the presence of gastrointestinal helminths...
July 6, 2018: Journal of Parasitology
Silvere Dieudonne Zaongo, Men-Fang Shaio, Dar-Der Ji
Nelson medium and modified PYNFH medium were used for the axenic culture of the Naegleria fowleri clinical strain LDL to compare the effects of different temperatures on the organism's growth. In addition, Nelson medium supplemented with 1% peptone (N+pep) and modified PYNFH medium without peptone (PYNFH-pep), without yeast extract (PYNFH-yext), without folic acid (PYNFH-folac), and without yeast nucleic acid (PYNFH-yna) were used in order to compare the various effects of these medium components. In general, N...
July 6, 2018: Journal of Parasitology
Tomáš Scholz, Alain de Chambrier
The tapeworm Sciadocephalus megalodiscus Diesing, 1850 (Cestoda: Proteocephalidae) is redescribed based on newly collected specimens parasitizing tucunare peacock bass, Cichla monoculus Agassiz, 1831 (Perciformes: Cichlidae), in the Peruvian Amazon. Even though this cestode was redescribed 2 decades ago by Rego et al. (1999), that redescription did not report some of the unique features of this species. The most unusual characteristics of the species are: (i) peculiar formation of the uterus, with fast formation of numerous, tightly packed diverticula protruding ventrally and dorsally, with simultaneous disintegration of the ovary and vitelline follicles in the first pregravid proglottids; (ii) inverted umbrella-shaped scolex with a well-developed apical sucker; (iii) a large-sized, follicular (grape cluster-like) ovary, which occupies most of the central (median) third of proglottids, with the ovarian isthmus situated almost equatorially; (iv) regular alternation of genital pores; (v) a well-developed internal seminal vesicle; and (vi) a small-sized strobila (shorter than 6 mm) consisting of few proglottids (15-20)...
July 6, 2018: Journal of Parasitology
Omar M Amin, Richard Heckmann, Nguyen Ha
Two species of acanthocephalans are described from fishes caught in the Pacific coast off eastern Vietnam in 2016: (1) Neorhadinorhynchus nudum (Harada, 1938) Yamaguti, 1939 (Cavisomidae) from the frigate tuna Auxis thazard (Lacépède) (Scombridae) in Nha Trang, Pacific south Vietnam and (2) Heterosentis paraholospinus n. sp. (Arhythmacanthidae) from 3 species of fish: the common ponyfish Leiognathus equulus (Forsskål) (Leiognathidae) and the torpedo scad Megalaspis cordyla (Linn.) (Carangidae) off Nha Trang and Binh Thuân, respectively, and from the yellow spotted ponyfish Nuchequula flavaxilla Kimura, Kimura, and Ikejima (Leiognathidae) at Quang Ninh in the Pacific waters of Vietnam...
July 6, 2018: Journal of Parasitology
Alessia Libera Gazzonis, Sergio Aurelio Zanzani, Katia Stradiotto, Emanuela Olivieri, Luca Villa, Maria Teresa Manfredi
A major public health issue, Toxoplasma gondii infection can affect humans mainly via the consumption of animal products from certain species, including small ruminants. Therefore, a regular monitoring of the infection in ovine and caprine populations is advisable for the control of human and animal toxoplasmosis. Antibody detection in individual and bulk tank milk may represent a valid alternative to serological analysis, being its collection easy and not affecting animal welfare. Many serological tools for milk analysis have already been validated for several parasites, including Apicomplexa...
July 6, 2018: Journal of Parasitology
Anindo Choudhury, Steven A Nadler
Nematodes are common in the parasite communities of North American freshwater fishes, and the majority of them belong to 1 conventional order, Spirurida Chitwood, 1933. Within the Spirurida, the superfamilies Habronematoidea Chitwood and Wehr, 1932 and Thelazioidea Sobolev, 1949 have undergone considerable diversification. The dominant families of these 2 superfamilies, Cystidicolidae Skrjabin 1946 and Rhabdochonidae Railliet, 1916, respectively, are particularly common, widely distributed and diverse, especially in North America, yet their phylogenetic relationships remain largely unexplored...
July 6, 2018: Journal of Parasitology
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