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Author Jitender P Dubey

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Global selective sweep of a highly inbred genome of the cattle parasite Neospora caninum.

Asis Khan, Ayako Wendy Fujita, Nadine Randle, Javier Regidor-Cerrillo, Jahangheer S Shaik, Kui Shen, Andrew J Oler, Mariam Quinones, Sarah M Latham, Bartholomew D Akanmori, Sarah Cleaveland, Elizabeth A Innes, Una Ryan, Jan Šlapeta, Gereon Schares, Luis M Ortega-Mora, Jitender P Dubey, Johnathan M Wastling, Michael E Grigg,

Neospora caninum, a cyst-forming apicomplexan parasite, is a leading cause of neuromuscular diseases in dogs as well as fetal abortion in cattle worldwide. The importance of the domestic and sylvatic life cycles of Neospora, and the role of vertical transmission in the expansion and transmission of infection in cattle, is ... Read more >>

Proc. Natl. Acad. Sci. U.S.A. (Proceedings of the National Academy of Sciences of the United States of America)
[2019, 116(45):22764-22773]

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Cyclospora cayetanensis and Cyclosporiasis: An Update.

Sonia Almeria, Hediye N Cinar, Jitender P Dubey,

Cyclospora cayetanensis is a coccidian parasite of humans, with a direct fecal-oral transmission cycle. It is globally distributed and an important cause of foodborne outbreaks of enteric disease in many developed countries, mostly associated with the consumption of contaminated fresh produce. Because oocysts are excreted unsporulated and need to sporulate ... Read more >>

Microorganisms (Microorganisms)
[2019, 7(9):]

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Toxoplasma gondii Oocyst Infectivity Assessed Using a Sporocyst-Based Cell Culture Assay Combined with Quantitative PCR for Environmental Applications.

Angélique Rousseau, Sandie Escotte-Binet, Stéphanie La Carbona, Aurélien Dumètre, Sophie Chagneau, Loïc Favennec, Sophie Kubina, Jitender P Dubey, Didier Majou, Aurélie Bigot-Clivot, Isabelle Villena, Dominique Aubert,

Toxoplasma gondii is a ubiquitous foodborne protozoan that can infect humans at low dose and displays different prevalences among countries in the world. Ingestion of food or water contaminated with small amounts of T. gondii oocysts may result in human infection. However, there are no regulations for monitoring oocysts in ... Read more >>

Appl. Environ. Microbiol. (Applied and environmental microbiology)
[2019, 85(20):]

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Comparison of indirect and modified agglutination tests for detection of antibodies to Toxoplasma gondii in domestic cats.

Susana Fernandes, Paula Brilhante-Simões, Teresa Coutinho, Luís Cardoso, Jitender P Dubey, Ana P Lopes,

Toxoplasma gondii is a protozoan parasite with worldwide distribution. The accurate detection of this zoonotic agent in cats and other hosts has public health importance. Blood samples from 89 domestic cats were tested for antibodies to T. gondii using 2 commercial agglutination test kits, an indirect (IHAT; Toxo-HAI FUMOUZE; Fumouze ... Read more >>

J. Vet. Diagn. Invest. (Journal of veterinary diagnostic investigation : official publication of the American Association of Veterinary Laboratory Diagnosticians, Inc)
[2019, 31(5):774-777]

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Epidemiological Investigation of Toxoplasma gondii Infections in Commercial Sheep Flock in an Endemic Area for Ocular Toxoplasmosis in Southern Brazil.

Angélica Consalter, Edwards Frazão-Teixeira, Jitender P Dubey, Eraldo L Zanella, Andressa F da Silva, Guilherme N de Souza, Ana M R Ferreira,

INTRODUCTION:Toxoplasma gondii is a widely distributed parasite and of great importance to human and animal health. METHODS:The objective of this study was to assess the prevalence of T. gondii antibodies and risk factors associated with the infection in sheep in the Northwest region of the State of Rio Grande do ... Read more >>

Acta Parasitol. (Acta parasitologica)
[2019, 64(3):514-519]

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Histologically, immunohistochemically, ultrastructurally, and molecularly confirmed neosporosis abortion in an aborted equine fetus.

Joseph A Anderson, Derron A Alves, Camila K Cerqueira-Cézar, Andressa F da Silva, Fernando H A Murata, Jamie K Norris, Daniel K Howe, Jitender P Dubey,

Neosporosis is a common cause of abortion in cattle worldwide but is rare in horses. Here, the first case of histologically, ultrastructurally, immunohistochemically, and molecularly confirmed equine abortion caused by neosporosis is reported. Samples of lung, heart, liver, skeletal muscle, tongue, brain, and the placenta from a female fetus aborted ... Read more >>

Vet. Parasitol. (Veterinary parasitology)
[2019, 270:20-24]

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Antibodies to Toxoplasma gondii in slaughtered free-range and broiler chickens.

Filipa T Rodrigues, Fernando A Moreira, Teresa Coutinho, Jitender P Dubey, Luís Cardoso, Ana Patrícia Lopes,

The consumption of undercooked infected chicken can be a source of infection for humans and carnivores regarding the zoonotic protozoan parasite Toxoplasma gondii. Furthermore, free-range chickens are sentinels for the presence of T. gondii oocysts in the environment because they feed from the ground. By using the modified agglutination test ... Read more >>

Vet. Parasitol. (Veterinary parasitology)
[2019, 271:51-53]

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Serological survey of Toxoplasma gondii in captive nonhuman primates in zoos in Spain.

David Cano-Terriza, Sonia Almería, Javier Caballero-Gómez, José M Díaz-Cao, Saúl Jiménez-Ruiz, Jitender P Dubey, Ignacio García-Bocanegra,

Toxoplasma gondii is a widely distributed zoonotic protozoan parasite, which can affect most warm-blooded species. Some species of non-human primates (NHPs) are highly susceptible to T. gondii infection. The aim of the study was to determine the seroprevalence and risk factors associated with T. gondii infection in NHPs housed in ... Read more >>

Comp. Immunol. Microbiol. Infect. Dis. (Comparative immunology, microbiology and infectious diseases)
[2019, 65:54-57]

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Evaluation of propidium monoazide-based qPCR to detect viable oocysts of Toxoplasma gondii.

Angélique Rousseau, Isabelle Villena, Aurélien Dumètre, Sandie Escotte-Binet, Loïc Favennec, Jitender P Dubey, Dominique Aubert, Stéphanie La Carbona,

Information on the viability of Toxoplasma gondii oocysts is crucial to establish the public health significance of this environmental transmission stage that can contaminate water and foods. Interest for molecular-based methods to assess viability is growing and the aim of our study was to assess, for the first time, a ... Read more >>

Parasitol. Res. (Parasitology research)
[2019, 118(3):999-1010]

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EXPOSURE OF ALASKA BROWN BEARS (URSUS ARCTOS) TO BACTERIAL, VIRAL, AND PARASITIC AGENTS VARIES SPATIOTEMPORALLY AND MAY BE INFLUENCED BY AGE.

Andrew M Ramey, Christopher A Cleveland, Grant V Hilderbrand, Kyle Joly, David D Gustine, Buck Mangipane, William B Leacock, Anthony P Crupi, Dolores E Hill, Jitender P Dubey, Michael J Yabsley,

We collected blood and serum from 155 brown bears (Ursus arctos) inhabiting five locations in Alaska, US during 2013-16 and tested samples for evidence of prior exposure to a suite of bacterial, viral, and parasitic agents. Antibody seroprevalence among Alaska brown bears was estimated to be 15% for Brucella spp., ... Read more >>

J. Wildl. Dis. (Journal of wildlife diseases)
[2019, 55(3):576-588]

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Coccidiosis in dogs-100 years of progress.

Jitender P Dubey, David S Lindsay,

Until 1970, coccidian parasites of dogs were considered to have a direct fecal-oral life cycle like Eimeria in poultry. They were thought to be non-host specific and infect both dogs and cats. Studies conducted in the 1970s revealed that dog coccidia were host-specific and had transport or paratenic hosts that ... Read more >>

Vet. Parasitol. (Veterinary parasitology)
[2019, 266:34-55]

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Genetic Characterization of Toxoplasma gondii DNA Samples Isolated From Humans Living in North America: An Unexpected High Prevalence of Atypical Genotypes.

Christelle Pomares, Sébastien Devillard, Tyson H Holmes, Tudor Rares Olariu, Cynthia J Press, Raymund Ramirez, Jeanne Talucod, Remy Estran, Chunlei Su, Jitender P Dubey, Daniel Ajzenberg, Jose G Montoya,

Background:Whereas in Europe most of Toxoplasma gondii genotypes belong to the type II lineage, in Latin America, type II is rare and atypical strains predominate. In North America, data on T. gondii genotypes in humans are scarce. Methods:In this study, T. gondii DNA samples from 67 patients with diagnosed toxoplasmosis ... Read more >>

J. Infect. Dis. (The Journal of infectious diseases)
[2018, 218(11):1783-1791]

Cited: 3 times

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A review of Cystoisospora felis and C. rivolta-induced coccidiosis in cats.

Jitender P Dubey,

Until the discovery of Toxoplasma gondii oocysts in cat feces in 1970, little was known of coccidiosis in cats. Until 1970, three coccidian parasites based on different sized oocysts were recognized, the parasite with large oocysts (∼40 μm long and called Isospora felis), medium sized oocysts (∼25 μm long, called Isospora rivolta), ... Read more >>

Vet. Parasitol. (Veterinary parasitology)
[2018, 263:34-48]

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Gametogony of Eimeria cameli in the small intestine of one-humped camel (Camelus dromedarius).

Jitender P Dubey, Rolf K Schuster, Joerg Kinne,

Domesticated Old World camels (Camelus dromedarius and Camelus bactrianus) are important for the economy of several countries in Asia, Africa, and the Arabian Peninsula, and coccidiosis is an important disease in camels. There is confusion concerning the species of coccidian parasites in camels and their life cycles. Although five species ... Read more >>

Parasitol. Res. (Parasitology research)
[2018, 117(11):3633-3638]

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Detection of anti-Toxoplasma gondii antibodies in small wild mammals from preserved and non-preserved areas in the Caatinga biome, a semi-arid region of Northeast Brazil.

Mauricio C Horta, Maíra F Guimarães, Ana I Arraes-Santos, Andreina C Araujo, Jitender P Dubey, Marcelo B Labruna, Solange M Gennari, Hilda F J Pena,

This study was conducted to determine the seroprevalence of anti-Toxoplasma gondii antibodies in 152 free-living small wild mammals from distinct regions in the Caatinga biome, a semi-arid region in the Northeast of Brazil: the National Park of Serra das Confusões (NPSC), which is a preserved area in the state of ... Read more >>

Vet Parasitol Reg Stud Reports (Veterinary parasitology, regional studies and reports)
[2018, 14:75-78]

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Histopathological, morphological, and molecular characterization of Sarcocystis species in elk (Cervus elaphus) from Pennsylvania, USA.

Camila K Cerqueira-Cézar, Peter C Thompson, Fernando H A Murata, Joseph Mowery, Justin D Brown, Jeremy Banfield, Benjamin M Rosenthal, Jitender P Dubey,

Sarcocystis sarcocysts are common in many species of domestic and wild animals. Here, we report sarcocystosis in muscles from 91 free range elk (Cervus elaphus) from Pennsylvania, USA, tested by histopathology, transmission electron microscopy (TEM), and DNA sequencing. Sarcocysts were detected in hematoxylin and eosin (HE)-stained sections from 83 of ... Read more >>

Parasitol. Res. (Parasitology research)
[2018, 117(10):3245-3255]

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Human impact on the diversity and virulence of the ubiquitous zoonotic parasite Toxoplasma gondii.

E Keats Shwab, Pooja Saraf, Xing-Quan Zhu, Dong-Hui Zhou, Brent M McFerrin, Daniel Ajzenberg, Gereon Schares, Kenneth Hammond-Aryee, Paul van Helden, Steven A Higgins, Richard W Gerhold, Benjamin M Rosenthal, Xiaopeng Zhao, Jitender P Dubey, Chunlei Su,

A majority of emerging infectious diseases in humans are zoonoses. Understanding factors that influence the emergence and transmission of zoonoses is pivotal for their prevention and control. Toxoplasma gondii is one of the most widespread zoonotic pathogens known today. Whereas only a few genotypes of T. gondii dominate in the ... Read more >>

Proc. Natl. Acad. Sci. U.S.A. (Proceedings of the National Academy of Sciences of the United States of America)
[2018, 115(29):E6956-E6963]

Cited: 5 times

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Toxoplasma gondii infection in wild mustelids and cats across an urban-rural gradient.

Macarena Barros, Oscar Cabezón, Jitender P Dubey, Sonia Almería, María P Ribas, Luis E Escobar, Barbara Ramos, Gonzalo Medina-Vogel,

The increase in human population and domestic pets, such as cats, are generating important consequences in terms of habitat loss and pathogen pollution of coastal ecosystems with potential to generate negative impacts in marine biodiversity. Toxoplasma gondii is the etiological agent of zoonotic disease toxoplasmosis, and is associated with cat ... Read more >>

PLoS ONE (PloS one)
[2018, 13(6):e0199085]

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An update on Toxoplasma gondii infections in northern sea otters (Enhydra lutris kenyoni) from Washington State, USA.

Shiv K Verma, Susan Knowles, Camila K Cerqueira-Cézar, Oliver C Kwok, Tiantian Jiang, Chunlei Su, Jitender P Dubey,

Toxoplasmosis in marine mammals is epidemiologically and clinically important. Toxoplasma gondii antibodies (by modified agglutination test, cut-off ≥1:25) were detected in serum of 65 of 70 (92.9%) northern sea otters (Enhydra lutris kenyoni) from Washington State, USA. Brains and/or muscles of 44 sea otters were bioassayed in mice (INF-γ knock-out ... Read more >>

Vet. Parasitol. (Veterinary parasitology)
[2018, 258:133-137]

Cited: 2 times

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Prevalence of zoonotic parasites in feral cats of Central Virginia, USA.

Sara J Taetzsch, Karen R Gruszynski, Andrea S Bertke, Jitender P Dubey, Katelynn A Monti, Anne M Zajac, David S Lindsay,

Felis catus, the domestic cat, is the definitive host for parasites that may result in adverse health outcomes in humans. Prevalence data of zoonotic parasites in feral cats, which are free-roaming domestic cats that are born and live in the wild, are limited. The objective of this study was to ... Read more >>

Zoonoses Public Health (Zoonoses and public health)
[2018, 65(6):728-735]

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A review of Eimeria infections in horses and other equids.

Jitender P Dubey, Christian Bauer,

There is considerable confusion concerning validity of Eimeria species in equids, and endogenous developmental stages and pathogenicity of equid Eimeria. This paper summarizes worldwide information on history, structure, life cycle, pathogenicity, prevalence, epidemiology, and diagnosis of Eimeria infections in equids. The following conclusions were drawn. Although three species of Eimeria; ... Read more >>

Vet. Parasitol. (Veterinary parasitology)
[2018, 256:58-70]

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Tracking Toxoplasma gondii in freshwater ecosystems: interaction with the invasive American mink (Neovison vison) in Spain.

Maria P Ribas, Sonia Almería, Xavier Fernández-Aguilar, Gabriel De Pedro, Patricia Lizarraga, Olga Alarcia-Alejos, Rafael Molina-López, Elena Obón, Hojjat Gholipour, Consuelo Temiño, Jitender P Dubey, Oscar Cabezón,

Water-borne transmission may play an important role in the epidemiology of Toxoplasma gondii. Mammals closely related to freshwater ecosystems, such as the American mink (Neovison vison), are potentially valuable sentinels for T. gondii. To assess the importance of freshwater ecosystems in T. gondii epidemiology, sera of 678 American minks collected ... Read more >>

Parasitol. Res. (Parasitology research)
[2018, 117(7):2275-2281]

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Sarcocystis cymruensis: discovery in Western Hemisphere in the Brown rat (Rattus norvegicus) from Grenada, West Indies: redescription, molecular characterization, and transmission to IFN-γ gene knockout mice via sporocysts from experimentally infected domestic cat (Felis catus).

Fernando H Antunes Murata, Camila K Cerqueira-Cézar, Peter C Thompson, Keshaw Tiwari, Joseph D Mowery, Shiv K Verma, Benjamin M Rosenthal, Ravindra N Sharma, Jitender P Dubey,

Rodents are intermediate hosts for many species of Sarcocystis. Little is known of Sarcocystis cymruensis that uses the Brown rat (Rattus norvegicus) as intermediate hosts and the domestic cat (Felis catus) as experimental definitive host. Here, we identified and described Sarcocystis cymruensis in naturally infected R. norvegicus from Grenada, West ... Read more >>

Parasitol. Res. (Parasitology research)
[2018, 117(4):1195-1204]

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Loop-Mediated Isothermal Amplification-Lateral-Flow Dipstick (LAMP-LFD) to detect Toxoplasma gondii oocyst in ready-to-eat salad

Marco Lalle, Alessia Possenti, Jitender P Dubey, Edoardo Pozio,

The apicomplexan parasite Toxoplasma gondii is the causative agent of toxoplasmosis, a foodborne zoonosis with a global distribution and estimated to cause up to 20% of the total foodborne disease burden in Europe. Association between T. gondii infection and the consumption of unwashed raw fruits and vegetables contaminated with oocysts ... Read more >>

Food Microbiol. (Food microbiology)
[2018, 70:137-142]

Cited: 2 times

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A partition of Toxoplasma gondii genotypes across spatial gradients and among host species, and decreased parasite diversity towards areas of human settlement in North America.

Tiantian Jiang, E Keats Shwab, Robbie M Martin, Richard W Gerhold, Benjamin M Rosenthal, Jitender P Dubey, Chunlei Su,

Toxoplasma gondii counts among the most consequential food-borne parasites, and although the parasite occurs in a wide range of wild and domesticated animals, farms may constitute a specific and important locus of transmission. If so, parasites in animals that inhabit agricultural habitats might be suspected of harbouring genetically distinct parasite ... Read more >>

Int. J. Parasitol. (International journal for parasitology)
[2018, 48(8):611-619]

Cited: 2 times

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