Zoonotic Transmission of Cryptosporidium and Microsporidia in Individuals of the Kurdistan Province, West of Iran.
This study aimed to evaluate the distribution and zoonotic transmission routes of Cryptosporidium species and microsporidia to humans referred to medical laboratories of Kurdistan Province, Iran. A total of 1,383 stool samples were collected and investigated. Cryptosporidium spp. and microsporidia were detected using microscopic methods (i.e., formol-ether concentration, Ziehl-Neelsen staining, and modified trichrome staining methods). DNA was extracted from positive samples, and specific fragments of the Cryptosporidium GP60 gene and microsporidia SSU rRNA gene were amplified. Furthermore, positive samples were sequenced ...
Source: The Journal of Parasitology - July 10, 2020 Category: Parasitology Authors: Bahrami F, Haghighi A, Zamini G, Khademerfan M Tags: J Parasitol Source Type: research

Protozoan and Helminth Infections of Aviary-Reared Alectoris rufa (Galliformes: Phasianidae) before Releasing for Hunting in the Czech Republic: Infection Dynamics and Potential Risks.
acute;sek I Abstract Age-related dynamics of protozoan and helminth infections in the red-legged partridge, Alectoris rufa, were studied in an intensive breeding aviary in the Czech Republic before releasing birds for hunting purposes. Pooled fecal samples (n = 900) were examined over 3 rearing seasons (2012-2014). A total of 4 protozoan species, Cryptosporidium baileyi, Cryptosporidium meleagridis, Eimeria kofoidi, and Eimeria legionensis, and 4 helminths, Capillaria phasianina, Eucoleus perforans, Heterakis gallinarum, and Syngamus trachea, was found. The most common parasite was S. trachea (prevalence 20-26%) i...
Source: The Journal of Parasitology - July 4, 2020 Category: Parasitology Authors: Máca O, Pavlásek I Tags: J Parasitol Source Type: research

The Molecular Profile of Rhadinorhynchus dorsoventrospinosus Amin, Heckmann, and Ha 2011 (Acanthocephala: Rhadinorhynchidae) from Vietnam.
Abstract Of the 46 known species of Rhadinorhynchus Lühe, 1911, only 6 species, including Rhadinorhynchus dorsoventrospinosus Amin, Heckmann, and Ha, 2011, have dorsal and ventral, as well as lateral, trunk spines in the posterior field of trunk spines. The other 5 species are Rhadinorhynchus erumei Gupta and Fatima, 1981, Rhadinorhynchus adenati (Golvan and Houin, 1964) Golvan, 1969, Rhadinorhynchus lintoni Cable and Linderoth, 1963, Rhadinorhynchus pacificus Amin, Rubtsova, and Ha, 2019, and Rhadinorhynchus multispinosus Amin, Rubtsova, and Ha, 2019. These 5 species are distinguished from R. dorsoventrospin...
Source: The Journal of Parasitology - June 28, 2020 Category: Parasitology Authors: Chaudhary A, Amin OM, Heckmann R, Singh HS Tags: J Parasitol Source Type: research

Coccidian Parasites of Flying Squirrels, Glaucomys spp. (Rodentia: Sciuridae), from Alaska and Arkansas, with a Description of a New Species of Eimeria (Apicomplexa: Eimeriidae).
Abstract New World flying squirrels, Glaucomys spp., are nocturnal arboreal sciurid rodents that have been previously surveyed for coccidial parasites. To date, 4 species of Eimeria have been reported from 2 species of Glaucomys. Here we report 2 species of eimerians from southern flying squirrels (Glaucomys volans) and the endemic Prince of Wales flying squirrel (Glaucomys sabrinus griseifrons). Oocysts of Eimeria dorneyi Levine and Ivens were found to be passing in the feces of 4 G. s. griseifrons from Alaska and a new species of Eimeria was present in feces from 6 G. volans from Arkansas. Oocysts of Eimeria hni...
Source: The Journal of Parasitology - June 1, 2020 Category: Parasitology Authors: McAllister CT, Motriuk-Smith D, McCurdy H, Seville RS, Flaherty EA Tags: J Parasitol Source Type: research

Seroprevalence of Toxoplasma gondii Infection and Associated Factors in Sheep from Jalisco, Mexico.
The objective of the study was to identify the seroprevalence of anti-Toxoplasma gondii antibodies in sheep herds from 3 municipalities from Jalisco, Mexico, as well as estimate the association between seroprevalence and certain factors presents in the farms. In total, 12 sheep farms that maintain only hair breeds were included in the work. From these farms, 336 blood samples were collected, corresponding 324 to ewes and 12 rams. Serum samples were subjected to ELISA test, and the association between the frequency of antibodies and some potential risk factors was estimated. The overall seroprevalence to anti-T. gondii anti...
Source: The Journal of Parasitology - June 1, 2020 Category: Parasitology Authors: Cruz-Vázquez C, De Velasco-Reyes I, Vitela-Mendoza I Tags: J Parasitol Source Type: research

Prevalence and Genotyping of Toxoplasma gondii in Cats, Rats, and Chickens in Border Areas of Yunnan Province, China.
The objective of the present study was to determine the characterization of Toxoplasma gondii in cats, rats, and chickens in the border areas of Yunnan Province. A total of 259 samples was collected from 10 border areas in Yunnan Province including 94 cats, 58 rats, and 107 chickens. Samples were screened by a nested polymerase chain reaction (PCR) assay and the positive products were analyzed by multilocus PCR-restriction fragment length polymorphism (RFLP) to determine the genotypes. Toxoplasma gondii deoxyribonucleic acid (DNA) was detected from 15.96% of 94 cats, 15.52% of 58 rats, and 6.54% of 107 chickens, respective...
Source: The Journal of Parasitology - June 1, 2020 Category: Parasitology Authors: Song HY, Liu Y, Chen K, Chang JY, Zou Y, Yang JF, Dai FY, Zou FC Tags: J Parasitol Source Type: research

Host Population Expansion and the Genetic Architecture of the Pinniped Hookworm Uncinaria lucasi.
Abstract The long-term fidelity of pinniped hosts to their natal rookery site suggests the genetic architecture of their Uncinaria spp. hookworms should be strongly structured by host breeding biology. However, historical events affecting host populations may also shape parasite genetic structure. Sequences of the mitochondrial cytochrome c oxidase 1 (COI) gene of 86 Uncinaria lucasi individuals were obtained to assess genetic variation and structure of nematodes from 2 host species (68 hookworms from northern fur seals; 18 hookworms from Steller sea lions) and rookeries from 3 widely separated geographic regions:...
Source: The Journal of Parasitology - June 1, 2020 Category: Parasitology Authors: Davies K, Pagan C, Nadler SA Tags: J Parasitol Source Type: research

Erratum.
ERRATUM. J Parasitol. 2020 Jun 01;106(3):382 Authors: PMID: 32437535 [PubMed - in process] (Source: The Journal of Parasitology)
Source: The Journal of Parasitology - May 23, 2020 Category: Parasitology Tags: J Parasitol Source Type: research

Intraspecific Variation in Growth and Reproduction of the Marine Leech, Heptacyclus buthi.
Abstract Heptacyclus buthi was harvested from fish hosts in rocky intertidal zones of Sonoma and Marin Counties, California, in October 2008 (n = 162) and October 2010 (n = 51). The size of the leeches was quantified using a method that approximated the sagittal cross-section of each specimen. Size-frequency curves were modeled to estimate the number of size-class cohorts in each year. If H. buthi is an annual species like many of its relatives, the single cohort modeled for in 2010 and the comparable "older" cohort in 2008, both with a broad range of sizes, may represent 1 component of its reproductive ...
Source: The Journal of Parasitology - May 22, 2020 Category: Parasitology Authors: Kim BY, Buth DG Tags: J Parasitol Source Type: research

Benznidazole/Poloxamer 407 Solid Dispersion as a New Strategy to Improve the Treatment of Experimental Trypanosoma cruzi Infection.
da LA Abstract Benznidazole and nifurtimox are the only drugs specifically approved for the treatment of Chagas disease. Both compounds are given orally in tablets, but occasionally are ineffective and cause adverse effects. Benznidazole, the first-line treatment in many countries, is a compound with low solubility in water that is administered at high doses for long periods of time. To improve its solubility, we developed a new liquid formulation on the basis of solid dispersions (SD) using the amphiphilic polymer poloxamer 407. Herein we present data on its trypanocidal performance in mouse models of acute and c...
Source: The Journal of Parasitology - May 6, 2020 Category: Parasitology Authors: Davies C, Simonazzi A, Micheloud JF, Ragone PG, Cid AG, Negrette OS, Bermúdez JM, Parada LA Tags: J Parasitol Source Type: research

Helminth Parasites of Three Anuran Species during Reproduction and Drought in the Brazilian Semiarid Caatinga Region.
This study also presents new helminth fauna records for R. jimi and P. diplolister, and the first helminth fauna record of R. granulosa from the Caatingas in semiarid Brazil. PMID: 32369595 [PubMed - as supplied by publisher] (Source: The Journal of Parasitology)
Source: The Journal of Parasitology - May 6, 2020 Category: Parasitology Authors: Madelaire CB, Franceschini L, Morais DH, Gomes FR, da Silva RJ Tags: J Parasitol Source Type: research

Survey of toxoplasma gondii exposure in muskrats in a relatively pristine ecosystem.
This study establishes a baseline to compare T. gondii waterborne transmission risks in other human-modified watersheds. PMID: 32294183 [PubMed - as supplied by publisher] (Source: The Journal of Parasitology)
Source: The Journal of Parasitology - April 7, 2020 Category: Parasitology Authors: Ahlers A, Wolf TM, Aarrestad O, Windels SK, Olson BT, Matykiewicz BR, Dubey JP Tags: J Parasitol Source Type: research

Stemmatostoma cribbi n. sp. (digenea: cryptogonimidae) from freshwater fishes in the wet tropics bioregion of queensland, australia.
STEMMATOSTOMA CRIBBI N. SP. (DIGENEA: CRYPTOGONIMIDAE) FROM FRESHWATER FISHES IN THE WET TROPICS BIOREGION OF QUEENSLAND, AUSTRALIA. J Parasitol. 2020 Apr 07;: Authors: Miller T, Adlard RD Abstract A survey of the parasite fauna of freshwater fishes from Wet Tropics Bioregion in Queensland, Australia, revealed the presence of a new species of Stemmatostoma Cribb, 1986 (Digenea: Cryptogonimidae). Stemmatostoma cribbi n. sp. is described from the intestine and pyloric caeca of 2 species of grunter (Terapontidae), Hephaestus fuliginosus (Macleay) and Hephaestus tulliensis (De Vis) and the Jungle perch (K...
Source: The Journal of Parasitology - April 7, 2020 Category: Parasitology Authors: Miller T, Adlard RD Tags: J Parasitol Source Type: research

Causes of fatal cyathostomiasis in brown booby (sula leucogaster) from brazil: identification of pathogen and implications for management.
CAUSES OF FATAL CYATHOSTOMIASIS IN BROWN BOOBY (SULA LEUCOGASTER) FROM BRAZIL: IDENTIFICATION OF PATHOGEN AND IMPLICATIONS FOR MANAGEMENT. J Parasitol. 2020 Apr 07;: Authors: Cardoso RNR, Baldassin P, Jerdy H, Carvalho EC, Kanarek G, Zaleśny G, Werneck MR Abstract Fatal infection by Cyathostoma ( Cyathostoma ) phenisci Baudet, 1937 (Nematoda: Syngamidae) was identified in two out 52 brown boobies ( Sula lecucogaster Boddaert, 1783) collected on beaches in the state of Rio de Janeiro, Brazil, and admitted to the veterinary clinic for rehabilitation. Both infected birds were in poor physical condition,...
Source: The Journal of Parasitology - April 7, 2020 Category: Parasitology Authors: Cardoso RNR, Baldassin P, Jerdy H, Carvalho EC, Kanarek G, Zaleśny G, Werneck MR Tags: J Parasitol Source Type: research

Tapeworms (Cestoda) of ictalurid catfishes (Siluriformes) in North America: redescription of type species of two genera and proposal of Essexiellinae n. subfam.
Abstract Ictalurid catfishes (Siluriformes) in North America harbor proteocephalid tapeworms of the subfamily Corallobothriinae. Type species of 2 of 3 genera of these tapeworms from ictalurids are redescribed, based on museum and newly collected material. Essexiella fimbriata (Essex, 1928) is typified mainly by a wide, umbrella-shape scolex with a metascolex formed by numerous folds of tissue, anteriorly directed suckers without sphincters, vitellarium bent inwards posteriorly, 'flower-shaped' uterus (with anterior, lateral and posterior diverticula), and a conspicuously pre-equatorial genital atrium. Verified re...
Source: The Journal of Parasitology - April 7, 2020 Category: Parasitology Authors: Scholz T, Barcak D, Waeschenbach A, McAllister CT, Choudhury A Tags: J Parasitol Source Type: research

Morphological and Molecular Evidence for a New Rhabdochonid Species (Nematoda: Rhabdochonidae) Parasitizing Profundulus oaxacae (Profundulidae) in the State of Oaxaca, Mexico.
Abstract The genus Rhabdochona Railliet, 1916 is one of the most speciose group of nematodes, parasites of freshwater fishes, with approximately 103 species described worldwide. Twenty-two species have been recorded in the Americas, 14 of them in Mexico. In this paper we describe a new species of Rhabdochona on the basis of light and scanning electron microscopy and molecular tools. Rhabdochona adentata n. sp. was recovered from the gallbladder of the freshwater Oaxaca killifish, Profundulus oaxacae (Meek, 1902) (Profundulidae) captured in the Río Grande, State of Oaxaca, Mexico. Rhabdochona adentata n. sp....
Source: The Journal of Parasitology - April 1, 2020 Category: Parasitology Authors: Caspeta-Mandujano JM, Salinas-Ocampo JC, Calixto-Rojas M, Rubio-Godoy M, Pinacho-Pinacho CD Tags: J Parasitol Source Type: research

Parasitism in Gambusia affinis: Fitness Effects in an Incipient Matrotroph.
Abstract Gambusia affinis (western mosquitofish) serves as a host for a variety of larval and adult parasites. Gambusia affinis is also an incipient matrotroph, exhibiting adjustments in post-fertilization provisioning to some offspring within a brood using recently acquired resources. Nutrient transfer to embryos is expected to limit the loss of embryo mass during development resulting in larger offspring. Since larger offspring are more likely to survive, maternal contributions are expected to increase fitness. The presence of parasites, particularly intestinal helminths, potentially reduces body condition and r...
Source: The Journal of Parasitology - April 1, 2020 Category: Parasitology Authors: Carpenter N, Herrmann KK Tags: J Parasitol Source Type: research

D-mannose-specific Immunoglobulin M in Grass Puffer (Takifugu niphobles), a Nonhost Fish of a Monogenean Ectoparasite Heterobothrium okamotoi, Can Act as a Trigger for its Parasitism.
Abstract Heterobothrium okamotoi, a monogenean gill parasite, exhibits high host specificity for the tiger puffer, Takifugu rubripes, and it has been experimentally verified that the parasite cannot colonize either closely related species such as the grass puffer Takifugu niphobles or distantly related fish such as the red seabream Pagrus major. Previously, we demonstrated in T. rubripes that immunoglobulin M (IgM) with d-mannose affinity induced deciliation of the oncomiracidia, the first step of parasitism, indicating that the parasite utilizes the molecule as a receptor for infection. In the present study, we p...
Source: The Journal of Parasitology - April 1, 2020 Category: Parasitology Authors: Matsui S, Goto T, Tsubouchi Y, Hirakawa S, Suetake H, Miyadai T, Nakamura O, Tasumi S, Tsutsui S Tags: J Parasitol Source Type: research

Variation in Helminth Parasite Component Communities of Gambusia affinis.
Abstract In north-central Texas streams, seasonal changes in ambient temperature and rainfall result in dynamic variation in microhabitat structure, affecting the distribution and abundance of hosts. Since the complex life cycles of parasites require the presence and interaction of multiple hosts, the seasonal variations in microhabitats could influence parasite component communities within these ecosystems. Gambusia affinis (western mosquitofish) serves as a host for a variety of larval and adult parasites. Factors that affect helminth component communities in populations of mosquitofish from the Paluxy River wer...
Source: The Journal of Parasitology - March 26, 2020 Category: Parasitology Authors: Carpenter N, Herrmann KK Tags: J Parasitol Source Type: research

The lungworm, Halocercus brasiliensis (Nematoda: Pseudaliidae), from Guiana Dolphins Sotalia guianensis from Brazil with Pathological Findings.
Abstract The Guiana dolphin, Sotalia guianensis, is a small cetacean species found on the Atlantic coast of Central and South America from Honduras to Santa Catarina State, Brazil. The nematode Halocercus brasiliensis infects this cetacean, resulting in lung pathologies and death. The present study aimed to conduct a morphological and morphometric study of specimens of H. brasiliensis collected from S. guianensis from the coast of the state of Espírito Santo, Brazil. For this study, 7 dolphins were collected and examined for the presence of lung parasites. Nematodes were collected and processed for light mi...
Source: The Journal of Parasitology - March 26, 2020 Category: Parasitology Authors: de Oliveira Carvalho Demarque I, de Oliveira FCR, da Silveira LS, Barbosa LA, Ederli NB Tags: J Parasitol Source Type: research

Gaharitrema droneni n. gen., n. sp. (Digenea: Zoogonidae) from the Pudgy Cuskeel, Spectrunculus grandis (Ophidiiformes: Ophidiidae), from Deep Waters Off Oregon, with Updated Keys to Zoogonid Subfamilies and Genera.
This study documents the third family of digeneans (Zoogonidae) known to parasitize S. grandis, and it is a new host record (i.e., the first zoogonid reported from this host species). We discuss the relatively impressive presence of the Zoogonidae and their hosts within the deep sea. Specifically, of the 35 genera we recognize within this digenean family, 14 (40%) have deep-sea representatives. At least 37 species within 27 genera and 19 families within 11 orders of deep-sea fish are known to harbor zoogonids. Furthermore, of the 37 known deep-sea fish species parasitized by zoogonids, only 5 (13.5%) harbor 2 or more zoogo...
Source: The Journal of Parasitology - March 26, 2020 Category: Parasitology Authors: Blend CK, Racz GR, Gardner SL Tags: J Parasitol Source Type: research

Leon F. Duobinis-Gray.
PMID: 32203979 [PubMed - as supplied by publisher] (Source: The Journal of Parasitology)
Source: The Journal of Parasitology - March 24, 2020 Category: Parasitology Authors: Faulkner CT Tags: J Parasitol Source Type: research

Haemosporidian Parasites of Chilean Ducks: The Importance of Biogeography and Nonpasserine Hosts.
D, Tkach VV Abstract Biogeography is known to have shaped the diversity and evolutionary history of avian haemosporidian parasites across the Neotropics. However, a paucity of information exists for the temperate Neotropics and especially from nonpasserine hosts. To understand the effect of biogeography in the temperate Neotropics on haemosporidians of nonpasserine hosts we screened ducks (Anseriformes) from central Chile for the presence of these parasites. Forty-two individuals of 4 duck species (Anas flavirostris, Anas georgica, Mareca sibilatrix, Spatula cyanoptera cyanoptera) were collected and assessed for h...
Source: The Journal of Parasitology - March 13, 2020 Category: Parasitology Authors: Bell JA, González-Acuña D, Tkach VV Tags: J Parasitol Source Type: research

A New Species of Cryptocotyle (Digenea: Heterophyidae) Infecting Kelp Gull and a Galaxiid Fish in Patagonian Freshwater Environments: Morphological and Molecular Analyses.
Abstract Adults of a species of Cryptocotyle were found infecting the intestine of the kelp gull, Larus dominicanus Lichtenstein, 1823, and metacercariae were found in the fins and muscle of the galaxiid fish, Galaxias platei Steindachner, 1898 (local name "puyen grande"), in Nahuel Huapi National Park (Patagonia). Morphometrics and genetic markers of mitochondrial cytochrome oxidase (COI) and ribosomal internal transcribed spacer 1 (ITS1) confirmed that adults and metacercariae were conspecific and represent a new species, Cryptocotyle dominicana n. sp. The only congener known from South America (Crypto...
Source: The Journal of Parasitology - March 13, 2020 Category: Parasitology Authors: Casalins LM, Arbetman MP, Viozzi GP, Flores VR Tags: J Parasitol Source Type: research

A New Species of Sucking Louse from the Mandrill from Gabon with a Review of Host Associations and Geographical Distributions, and Identification Keys to Members of the Genus pedicinus (Phthiraptera: Anoplura: Pedicinidae).
Abstract Members of the sucking louse genus Pedicinus are ectoparasites of cercopithecid primates in Africa, Asia, and Gibraltar. Pedicinus gabonensis n. sp. is described on the basis of adult male and female specimens collected from the mandrill (Mandrillus sphinx) in Gabon. The new species is compared morphologically with other members of the genus Pedicinus, and a nuclear elongation factor 1 alpha gene sequence is provided. Host associations and geographical distributions of the 18 previously recognized species of the genus and of P. gabonensis n. sp. are reviewed. Updated identification keys are provided for m...
Source: The Journal of Parasitology - March 13, 2020 Category: Parasitology Authors: Durden LA, Kessler SE, Boundenga L, Ngoubangoye B, Tsoumbou TA, Moussadji-Kinga CI, Halbwax M, Setchell JM, Nichols J, Greiman SE Tags: J Parasitol Source Type: research

In Memoriam: Dr. Gerald Wisler Esch.
Authors: PMID: 32109189 [PubMed - as supplied by publisher] (Source: The Journal of Parasitology)
Source: The Journal of Parasitology - February 1, 2020 Category: Parasitology Tags: J Parasitol Source Type: research

High Prevalence of the Copepod Salmincola californiensis in Steelhead Trout in Lake Ontario Following its Recent Invasion.
Abstract Salmincola californiensis (Dana, 1853) (Subclass Copepoda: Family Lernaeopodidae) is known to parasitize salmonids of the genus Oncorhynchus including Oncorhynchus mykiss (rainbow trout), Oncorhynchus tshawytscha (chinook salmon), and Oncorhynchus kisutch (coho salmon). These 3 salmonids have been introduced to the Great Lakes intermittently since the mid-1800s. As we demonstrate here, the introduction of these salmonids to the Great Lakes was followed, at some point, by the introduction of their parasitic gill copepod, S. californiensis. Given anecdotal accounts of S. californiensis in introduced salmoni...
Source: The Journal of Parasitology - February 1, 2020 Category: Parasitology Authors: Mullin BR, Reyda FB Tags: J Parasitol Source Type: research

Regional Distribution of a Brain-Encysting Parasite Provides Insight on Parasite-Induced Host Behavioral Manipulation.
In this study, we developed a method for repeated experimental infections. In addition, we measured brain-region specific density using a novel methodology to locate and quantify parasite infection. We show that E. californiensis cysts are non-randomly distributed on the fish brain, aggregating on the diencephalon/mesencephalon region (a brain area involved in controlling reproduction and stress coping) and the rhombencephalon (an area involved in controlling locomotion and basal physiology). Determining causal mechanisms behind this pattern of localization will guide future research examining the neurological mechanisms o...
Source: The Journal of Parasitology - February 1, 2020 Category: Parasitology Authors: Helland-Riise SH, Nadler LE, Vindas MA, Bengston E, Turner AV, Johansen IB, Weinersmith KL, Hechinger RF, Øverli Ø Tags: J Parasitol Source Type: research

Ancient Echinostome Eggs Discovered in Archaeological Strata Specimens from a Baekje Capital Ruins of South Korea.
Abstract Echinostomiasis is prevalent in southeastern as well as northeastern Asian countries. This endemicity notwithstanding, no echinostome egg has as yet been reported by paleoparasitological studies conducted in Asian countries. Recently we analyzed geological-strata specimens retrieved from the ancient capital city of the Baekje Kingdom to uncover clues to the possible prevalence of echinostomiasis among contemporaneous populations of Korea. By means of archaeoparasitological technique, we found ancient Isthmiophora hortensis eggs in the specimens, thus revealing for the first time that ancient Korean people...
Source: The Journal of Parasitology - February 1, 2020 Category: Parasitology Authors: Seo M, Shim SY, Lee HY, Kim Y, Hong JH, Kim JE, Chai JY, Shin DH Tags: J Parasitol Source Type: research

Atrophic Proventriculitis Associated with Gravid Females of Tetrameres sp. (Nematoda: Tetrameridae) in the Magellanic Penguin (Spheniscus magellanicus) on the Coast of Brazil.
This study broadens knowledge on parasites associated with these hosts and the real impact of this association. PMID: 32083984 [PubMed - as supplied by publisher] (Source: The Journal of Parasitology)
Source: The Journal of Parasitology - February 1, 2020 Category: Parasitology Authors: Werneck MR, Jerdy H, Ribeiro RB, Bianchi M, Maciel LLF, de Aquino Almeida JC, Baldassin P, Gallo H, Carvalho ECQ Tags: J Parasitol Source Type: research

A New Species of Triumphalisnema (Nematoda: Coronostomatoidea) Parasite of Proculejus hirtus (Coleoptera: Passalidae) from Mexico, and the Position of the Family in the Oxyuridomorpha.
de;as SA, Mata-López R Abstract A new species of the nematode Triumphalisnema Kloss, 1962 (Oxyuridomorpha), is described from the wood beetle Proculejus hirtus Truqui from the mountain mesophilic forest in Hidalgo State, Mexico. Triumphalisnema zuuei n. sp. is distinguished from the other 4 congeners species by the presence of an expanded cervical ring, well-developed lateral alae, an obtuse cauda with a short and bifurcated caudal appendage, series of cuticular folds at ventral and dorsal body surface from excretory pore level to anal region, and ellipsoidal eggs ornamented with numerous small mushroom-lik...
Source: The Journal of Parasitology - February 1, 2020 Category: Parasitology Authors: Garduño-Montes de Oca EU, Vega-Badillo V, López-Caballero J, Ramírez-Cañas SA, Mata-López R Tags: J Parasitol Source Type: research

Is Allopreening a Stimulus-Driven Defense Against Ectoparasites?
Abstract Allopreening occurs when 1 bird preens another bird. The behavior is normally directed at the head and neck of the recipient, i.e., regions that the bird cannot self-preen. Studies of penguins, pigeons, and other groups of birds suggest that allopreening plays a role in the control of ectoparasites, such as ticks and feather lice. However, it is not known whether allopreening increases in response to increases in parasite load, or whether it is a programmed response that occurs independently of parasite load. We conducted a laboratory experiment using wild-caught rock pigeons (Columba livia) to test the r...
Source: The Journal of Parasitology - February 1, 2020 Category: Parasitology Authors: Goodman GB, Conner SA, Bush SE, Clayton DH Tags: J Parasitol Source Type: research

Additional Morphological Features and Molecular Data of Paracamallanus cyathopharynx (Nematoda: Camallanidae) Infecting Clarias gariepinus (Actinopterygii: Clariidae) in Kenya.
This study provides additional taxonomic features based on scanning electron microscopy (SEM) and molecular data for Paracamallanus cyathopharynx ( Baylis, 1923 ) (Nematoda: Camallanidae). Parasites were collected from the posterior end of the intestine of cultured freshwater Sharptooth catfish Clarias gariepinus (Burchell, 1822) from Kibos fish farm, Kisumu County, Kenya, from December 2017 to March 2018. Additional taxonomic features recorded for P. cyathopharynx include the occurrence of 4-5 equal length digitate processes on the caudal end of the female, 4 processes (2 smaller and 2 larger) on the male caudal end, and ...
Source: The Journal of Parasitology - February 1, 2020 Category: Parasitology Authors: Rindoria NM, Dos Santos QM, Avenant-Oldewage A Tags: J Parasitol Source Type: research

Four New Species of Paraorygmatobothrium (Eucestoda: Phyllobothriidea) From Sharks of the Gulf of Mexico and the Atlantic Ocean, with Comments on Their Host Specificity.
Abstract Four new species of Paraorygmatobothrium are described from carcharhinid shark species from the Gulf of Mexico and the U.S. coast of the northwestern Atlantic Ocean. Paraorygmatobothrium bullardi n. sp. is described from Carcharhinus brevipinna as its type host, and from Carcharhinus acronotus and Carcharhinus limbatus. Paraorygmatobothrium campbelli n. sp. is described from Rhizoprionodon terraenovae. Paraorygmatobothrium deburonae n. sp. is described from Carcharhinus isodon as its type host, as well as from C. brevipinna, C. limbatus, and R. terraenovae. Paraorygmatobothrium mattisi n. sp. is described...
Source: The Journal of Parasitology - February 1, 2020 Category: Parasitology Authors: Ruhnke TR, Daniel V, Jensen K Tags: J Parasitol Source Type: research

Cestode Parasites of Armadillos (Mammalia: Xenarthra) from Argentina: Two New Species of Mathevotaenia (Anoplocephalidae) in Tolypeutes matacus.
This study revealed the presence of 3 species of the genus Mathevotaenia Akumyan, 1946 (Cestoda Anoplocephalidae), two of them new for science. These species are described, illustrated, and compared with related species. Mathevotaenia chamicalensis n. sp. is characterized by having a small body with 45-65 proglottids; a globose scolex, longer than wide and well delimited from strobila; a long neck; mature and gravid proglottids longer than wide; and 20-35 testes located in a single field. Mathevotaenia yepesi n. sp. is characterized by having a small body with 86-128 proglottids; a rectangular scolex, wider than long and n...
Source: The Journal of Parasitology - February 1, 2020 Category: Parasitology Authors: Rios TA, Drago FB, Ezquiaga MC, Abba AM, Navone GT Tags: J Parasitol Source Type: research

The Distribution of Quill Mites (Betasyringophiloidus seiuri) Among Flight Feathers of the Ovenbird (Seiurus aurocapilla).
We examined all 1,008 flight feathers from 21 dead ovenbirds from Canada for quill mites and calculated infestation parameters per feather location. Nine of the 21 birds were infested with mites (prevalence of 42.9%). Feathers with the highest prevalence were Primaries 1 and 2 and Secondaries 1, 2, and 5. Only 2 of the 9 infested birds had mites in their tail feathers; in each case, only a single feather was infested. Mean intensity was 28.4 mites/feather with a range of 2-135.6, and ∼88% of the adult mites were female. To determine if quill volume and quill wall thickness correlated with mite presence and abundance, w...
Source: The Journal of Parasitology - February 1, 2020 Category: Parasitology Authors: Grossi AA, Proctor HC Tags: J Parasitol Source Type: research

The Coccidia (Apicomplexa) of the Archosauria (Crocodylia: Eusuchia) of the World.
Abstract The order Crocodylia (suborder Eusuchia) includes 27 species of alligators, caimans, crocodiles, and gharials that are cosmopolitan in distribution, inhabiting subtropical and tropical locations. Numerous surveys (many of them trivial, with small sample sizes) have reported a wide variety of blood and intestinal apicomplexans from 17/27 (63%) crocodilian hosts, but neither a summation for the group nor a revisionary systematic approach to species evaluation has ever been provided. Herein, we summarize information on the 16 species of apicomplexans that we consider to be valid, including 8 Eimeria, 1 Haemo...
Source: The Journal of Parasitology - February 1, 2020 Category: Parasitology Authors: Duszynski DW, McAllister CT, Tellez M Tags: J Parasitol Source Type: research

Molecular Identification of Oxyspirura Petrowi Intermediate Hosts by Nested PCR Using Internal Transcribed Spacer 1 (ITS1).
Abstract Recently, the heteroxenous eyeworm, Oxyspirura petrowi, has gained attention due to its prevalence in the declining game bird, Northern bobwhite (Colinus virginianus), but the intermediate hosts of many nematodes remain unknown. However, identifying the intermediate host of O. petrowi with traditional techniques would be difficult and time-consuming, especially considering there are more than 80 potential orthopteran hosts just in Texas. To screen a large number of samples quickly and effectively, primers for nested PCR (nPCR) were developed using the internal transcribed spacer 1 (ITS1) region. Then the ...
Source: The Journal of Parasitology - January 30, 2020 Category: Parasitology Authors: Henry C, Kalyanasundaram A, Brym MZ, Kendall RJ Tags: J Parasitol Source Type: research

Full Mitochondrial Genome and Nuclear 18S rDNA Sequences Refine the Taxonomic Placement of Choleoeimeria taggarti n. comb. from the Prostate of Antechinus flavipes (Yellow-Footed Antechinus).
Abstract An unusual coccidian parasite was described previously from the prostate of a male Antechinus flavipes (family: Dasyuridae; common name: yellow-footed antechinus). Morphometrics and a partial nuclear 18S small subunit rDNA (18S rDNA) sequence were used to assign this parasite to the genus Eimeria; it was named Eimeria taggarti. We generated full nuclear 18S rDNA and mitochondrial genome sequences from this parasite and used the newly completed 18S rDNA and mitochondrial cytochrome c oxidase subunit I (COI) sequences to perform a more in-depth phylogenetic analysis. The parasite clustered closely with Chol...
Source: The Journal of Parasitology - January 30, 2020 Category: Parasitology Authors: Kruth PS, Michel C, Amery-Gale J, Barta JR Tags: J Parasitol Source Type: research

Dactylogyrus pisolabrae n. sp. (Monogenoidea: Dactylogyridae) Parasitizing the Pealip Redhorse, Moxostoma pisolabrum (Teleostei: Catostomidae), from Oklahoma, U.S.A.
Abstract A new species of monogenean, Dactylogyrus pisolabrae n. sp., was found parasitizing the gills of the Pealip Redhorse, Moxostoma pisolabrum, from Oklahoma. Dactylogyrus pisolabrae is morphologically similar to Dactylogyrus apos, Dactylogyrus atripinnei, Dactylogyrus duquesnei, and Dactylogyrus niger, all parasitizing other species of suckers, by possessing a robust, sickle-shaped male copulatory organ, but differs from these and all other species of North American Dactylogyrus by possessing 2 unique wing-like projections opposite each other on the proximal portion of the accessory piece. Dactylogyrus pisol...
Source: The Journal of Parasitology - January 30, 2020 Category: Parasitology Authors: Cloutman DG, McAllister CT, Robison HW Tags: J Parasitol Source Type: research

Morphological and Molecular Description of Rhadinorhynchus hiansi Soota and Bhattacharya, 1981 (Acanthocephala: Rhadinorhynchidae) from Marine Fish off the Pacific Coast of Vietnam.
We describe females for the first time, assign a female allotype status, and provide an expanded description of males from a larger collection completing missing information on hooks and hook roots, receptacle, lemnisci, cement glands, Saefftigen's pouch, and trunk spines. Specimens of R. hiansi characteristically have no dorsal spines in the posterior field of trunk spines and a long proboscis with 36-48 dorso-ventrally differentiated proboscis hooks per row becoming progressively smaller posteriorly then increasing in size near the posterior end to a maximum at the posterior-most ring. Trunk, testes, and lemnisci in our ...
Source: The Journal of Parasitology - January 30, 2020 Category: Parasitology Authors: Amin OM, Heckmann RA, Dallarés S, Constenla M, Van Ha N Tags: J Parasitol Source Type: research

Surveys and Literature Review of Parasites among African Mole-Rats: Proposing Hypotheses for the Roles of Geography, Ecology, and Host Phylogenetic Relatedness in Parasite Sharing.
Abstract Hosts that overlap geographically, are less phylogenetically divergent, and/or share similar ecological conditions (e.g., climate, habitat type) are also likely to share parasites. Here we assessed the ectoparasite communities sustained by 3 solitary species of Bathyergidae (Georychus capensis, Bathyergus suillus, and Bathyergus janetta) as well as the endoparasites exploiting G. capensis and compared them with those reported in the literature for other sympatric and parapatric African mole-rat species. In addition to 1 nematode ( Trichuris sp.) and 1 symbiotic ciliate (Meistoma georychi), we collected mi...
Source: The Journal of Parasitology - January 26, 2020 Category: Parasitology Authors: Lutermann H, Archer EK, Ueckermann EA, Junker K, Bennett NC Tags: J Parasitol Source Type: research

Prevalence and Intensity of Otodistomum hydrolagi (Trematoda: Azygiidae) in Spotted Ratfish, Hydrolagus colliei (Chondrichthyes: Chimaeridae) from the Coastal Waters of British Columbia, Canada.
Abstract The prevalence and intensity of the trematode, Otodistomum hydrolagi, were determined for the first time in Spotted Ratfish, Hydrolagus colliei. Spotted Ratfish specimens were collected during bottom-trawl surveys in Queen Charlotte Sound (QCS, n = 31) and off the west coast of Vancouver Island (WCVI, n = 242). In all instances, the flukes were found within the abdominal cavity. Most flukes were mature (intrauterine eggs were present) and ranged in length from 9.1 to 61.5 mm, with a mean ± SD length of 28.5 ± 12.1 mm (n = 52). Fluke length was positively correlated with Spotted Ratfish preca...
Source: The Journal of Parasitology - January 25, 2020 Category: Parasitology Authors: Morrison PR, King JR, Goater TM Tags: J Parasitol Source Type: research

Prevalence of Infection and Co-Infection and Presence of Rickettsial Endosymbionts in Ixodes Scapularis (Acari: Ixodidae) in Connecticut, USA.
Abstract Ixodes scapularis is currently known to transmit 7 pathogens responsible for Lyme disease, anaplasmosis, babesiosis, tick-borne relapsing fever, ehrlichiosis, and Powassan encephalitis. Ixodes scapularis can also be colonized by endosymbiotic bacteria including those in the genus of Rickettsia. We screened 459 I. scapularis ticks submitted to the Connecticut Agricultural Experiment Station Tick Testing Laboratory with the objectives to (1) examine differences in infection prevalence of Borrelia burgdorferi, Anaplasma phagocytophilum, Babesia microti, and Borrelia miyamotoi, (2) evaluate whether prevalence...
Source: The Journal of Parasitology - January 25, 2020 Category: Parasitology Authors: Pokutnaya D, Molaei G, Weinberger DM, Vossbrinck CR, Diaz AJ Tags: J Parasitol Source Type: research

Microbiome Differences Between Human Head and Body Lice Ecotypes Revealed by 16S RRNA Gene Amplicon Sequencing.
Abstract Human head lice and body lice (Pediculus humanus) are neglected ectoparasites. Head lice continue to be prevalent in children worldwide, and insecticide resistance in these insects has complicated their treatment. Meanwhile, body lice, which are most common in the developing world, are resurging among marginalized populations in developed nations. Today, the microbiome is being increasingly recognized as a key mediator of insect physiology. However, the microbial communities that inhabit human lice have remained unknown beyond only a few species of bacteria. Knowledge of the microbiomes of head and body l...
Source: The Journal of Parasitology - January 22, 2020 Category: Parasitology Authors: Agany DDM, Potts R, Hernandez JLG, Gnimpieba EZ, Pietri JE Tags: J Parasitol Source Type: research

Documentation of the Expansion of the Gulf Coast Tick (Amblyomma maculatum) and Rickettsia parkeri: First Report in Illinois.
ez FA Abstract The Gulf Coast tick, Amblyomma maculatum, is of public and veterinary health concern, as it is the primary vector of Rickettsia parkeri and Hepatozoon americanum, causative agents of Rickettsiosis and American canine hepatozoonosis. The Gulf Coast tick's range has expanded over the last 50 yr into the mid-Atlantic states, and its expansion is expected to continue northward. We are reporting the presence of A. maculatum for the first time in Illinois, including a total of 18 specimens collected at 6 different sites during surveys in 2013 and 2019. Fourteen of these specimens were screened for Rickett...
Source: The Journal of Parasitology - January 22, 2020 Category: Parasitology Authors: Phillips VC, Zieman EA, Kim CH, Stone CM, Tuten HC, Jiménez FA Tags: J Parasitol Source Type: research

The Road Not Taken: Host Infection Status Influences Parasite Host-Choice.
In this study, we used a simple choice chamber design to examine whether trematode parasites can detect the infection status of a potential host and avoid hosts infected with a competitively dominant species. Our results show that Schistosoma mansoni, a competitively subordinate species, can detect and avoid hosts infected with a competitively dominant parasite, Echinostoma caproni. However, E. caproni, despite showing a significant preference for snails infected with S. mansoni over uninfected snails, showed little ability to detect the infection status of the host or even the host's presence. We propose subordinate speci...
Source: The Journal of Parasitology - January 12, 2020 Category: Parasitology Authors: Vannatta JT, Knowles T, Minchella DJ, Gleichsner AM Tags: J Parasitol Source Type: research

Two Novel Myxozoans from Pirate Perch Aphredoderus sayanus (Gilliams, 1824) in the Upper Mississippi River, Including the First North American Species of Hennegoides Lom, Tonguthai, & Dykov á, 1991.
Two Novel Myxozoans from Pirate Perch Aphredoderus sayanus (Gilliams, 1824) in the Upper Mississippi River, Including the First North American Species of Hennegoides Lom, Tonguthai, & Dyková, 1991. J Parasitol. 2019 Dec;105(6):918-927 Authors: Leis EM, Rosser TG, Baumgartner WA, Griffin MJ Abstract The pirate perch Aphredoderus sayanus is a relatively small fish species found in rivers throughout much of the eastern United States. Due to their cryptic nature, relatively little is known regarding their parasite fauna. A survey of pirate perch from the upper Mississippi River revealed 2 novel...
Source: The Journal of Parasitology - December 1, 2019 Category: Parasitology Authors: Leis EM, Rosser TG, Baumgartner WA, Griffin MJ Tags: J Parasitol Source Type: research

Molecular Screening of Plasmodium (Haemosporidia: Plasmodiidae) Parasites from Reptiles in Brazil.
Abstract Hemosporidians are a monophyletic group of protozoan parasites infecting all terrestrial vertebrate orders. Although Plasmodium is the most studied genus within the Haemosporidia, this research effort is heavily biased toward mammal and bird hosts. We screened 205 specimens of at least 18 reptile species from Brazil using a partial mitochondrial cytochrome b gene marker. Positive samples were sequenced and included in a phylogenetic assessment. Four positive PCR products matched others identified as Plasmodium using BLAST from 3 different host species, Ameiva ameiva, Tropidurus hispidus, and Hemidactylus ...
Source: The Journal of Parasitology - December 1, 2019 Category: Parasitology Authors: Harris DJ, Santos JL, Borges-Nojosa DM, de Castro DP Tags: J Parasitol Source Type: research

A New Species of Ancylostoma (Nemata: Strongylida: Ancylostomatidae) from Two Species of Ctenomys in Lowland Bolivia.
Abstract From the small intestines of both Ctenomys boliviensis and Ctenomys steinbachi collected from August 1984 through June 1990 from the eastern lowlands of the Department of Santa Cruz, Bolivia a total of 36 specimens of Ancylostoma were recovered. Morphological investigation and comparisons with known species described and reported from mammals in the Neotropical Region show that this is an undescribed species, herein described as new. These nematans were collected from individuals of C. steinbachi collected from near a locality called Caranda (northwest of Santa Cruz de la Sierra) and from C. boliviensis f...
Source: The Journal of Parasitology - December 1, 2019 Category: Parasitology Authors: Drabik GO, Gardner SL Tags: J Parasitol Source Type: research