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Toxocara canis

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https://www.readbyqxmd.com/read/28917315/protective-and-risk-factors-associated-with-the-presence-of-toxocara-spp-eggs-in-dog-hair
#1
Yslla Fernanda Fitz Balo Merigueti, Vamilton Alvares Santarém, Lívia Magosso Ramires, Aline da Silveira Batista, Layron Vinícus da Costa Beserra, Amábyle Lopes Nuci, Talita Mirella de Paula Esposte
Toxocariasis is one of the most prevalent parasitic zoonoses in the world. The disease is principally caused by the nematode Toxocara canis, whose definitive host is the dog. The transmission of toxocariasis to humans is mainly caused by accidental ingestion of embryonated eggs of the parasite, present in the soil. Studies have shown that dog hair has the capacity to harbor eggs of the parasite and represents a risk for transmission of the zoonosis. The objective of the present study was to evaluate the frequency and factors associated with the contamination of dog hair by Toxocara spp...
September 15, 2017: Veterinary Parasitology
https://www.readbyqxmd.com/read/28915831/a-synoptic-overview-of-golden-jackal-parasites-reveals-high-diversity-of-species
#2
REVIEW
Călin Mircea Gherman, Andrei Daniel Mihalca
The golden jackal (Canis aureus) is a species under significant and fast geographic expansion. Various parasites are known from golden jackals across their geographic range, and certain groups can be spread during their expansion, increasing the risk of cross-infection with other carnivores or even humans. The current list of the golden jackal parasites includes 194 species and was compiled on the basis of an extensive literature search published from historical times until April 2017, and is shown herein in synoptic tables followed by critical comments of the various findings...
September 15, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/28871165/zoonotic-intestinal-helminths-interact-with-the-canine-immune-system-by-modulating-t-cell-responses-and-preventing-dendritic-cell-maturation
#3
Johannes Junginger, Katharina Raue, Karola Wolf, Elisabeth Janecek, Veronika M Stein, Andrea Tipold, Anne-Rose Günzel-Apel, Christina Strube, Marion Hewicker-Trautwein
Parasite co-evolution alongside the mammalian immune system gave rise to several modulatory strategies by which they prevent exaggerated pathology and facilitate a longer worm survival. As little is known about the immunoregulatory potential of the zoonotic canine parasites Ancylostoma caninum and Toxocara canis in the natural host, the present study aimed to investigate whether their larval excretory-secretory (ES) products can modulate the canine immune system. We demonstrated TcES to increase the frequency of CD4+ Foxp3(high) T cells, while both AcES and TcES were associated with elevated Helios expression in Foxp3(high) lymphocytes...
September 4, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28820703/assessment-of-u-s-pediatrician-knowledge-of-toxocariasis
#4
Dana M Woodhall, Amanda P Garcia, Craig A Shapiro, Shequenta L Wray, Andi L Shane, Chitra S Mani, Kelly K Stimpert, LeAnne M Fox, Susan P Montgomery
Toxocariasis, one of a group of parasitic diseases known as neglected parasitic infections, is a disease caused by the larvae of two species of Toxocara roundworms, Toxocara canis, from dogs, and less commonly Toxocara cati, from cats. Although most infected individuals are asymptomatic, clinical manifestations may include fever, fatigue, coughing, wheezing, or abdominal pain (visceral toxocariasis) or vision loss, retina damage, or eye inflammation (ocular toxocariasis). To assess U.S. pediatrician knowledge of toxocariasis, we conducted an electronic survey of American Academy of Pediatrics members...
July 31, 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28807291/toxocara-canis-analysis-of-the-kinetics-of-antigen-release-and-antibody-production-in-an-in-vivo-model-for-the-detection-of-past-or-present-infection
#5
Aarón Rodríguez-Caballero, Mario Noé Martínez-Gordillo, Silvia Caballero-Salazar, Yadira Rufino-González, Martha Ponce-Macotela
Worldwide, Toxocara canis is an important zoonotic nematode of public health concern. This soil-transmitted helminth causes visceral larva and ocular larva migrans in paratenic hosts. The detection of T. canis larva migrans is complicated because current immunological tests detect only IgG antibodies, which can cross-react with antigens from other parasites and cannot distinguish between the past and present infection. Analysis of antigen release and antibody production could help improve the detection of larva migrans...
August 30, 2017: Veterinary Parasitology
https://www.readbyqxmd.com/read/28761492/gastrointestinal-helminths-and-ectoparasites-in-the-stray-cats-felidae-felis-catus-of-ahar-municipality-northwestern-iran
#6
Mohammad Yakhchali, Nasser Hajipour, Reza Malekzadeh-Viayeh, Bijan Esmaeilnejad, Taher Nemati-Haravani, Mohammad Fathollahzadeh, Rasool Jafari
BACKGROUND: The stray cats are considered as the sources of emerging humans and domestic livestock pathogens and the zoonoses of public health importance. The present study was aimed to elucidate intestinal helminth infections and infestation with ectoparasites of the stray cats of Ahar City, northwestern Iran. METHODS: Totally, 51 stray cats were randomly trapped from different parts of the city between Mar and Nov 2013. The cats were assessed for ectoparasites by hair brushing, skin scraping, acetate tape preparation and othic swabs...
April 2017: Iranian Journal of Parasitology
https://www.readbyqxmd.com/read/28761483/road-killed-carnivores-illustrate-the-status-of-zoonotic-helminthes-in-caspian-sea-littoral-of-iran
#7
Aida Vafae Eslahi, Eshrat Beigom Kia, Iraj Mobedi, Meysam Sharifdini, Milad Badri, Gholamreza Mowlavi
BACKGROUND: Carnivore carcasses on the roads can be regarded as study materials in parasitology and eco-epidemiology. Stray carnivores such as dogs and cats are known to harbor so many different pathogens like zoonotic helminthes. The current investigation, apparent the status of the helminthic parasites found in road killed carnivores from different parts of Guilan Province north of Iran. METHODS: Fifty road killed carnivores including 27 stray dogs (Canis familiaris), 11 golden jackals (Canis aureus) and 12 stray cats (Felis catus) were collected from 21 locations of Guilan Province, during Apr to Nov 2015...
April 2017: Iranian Journal of Parasitology
https://www.readbyqxmd.com/read/28761466/epidemiological-study-of-toxocar-canis-in-children-under-14-years-old-and-dogs-in-zabol-and-chabahar-districts-southeast-of-iran
#8
Mehdi Khoshsima Shahraki, Mansour Dabirzadeh, Mahdi Afshari, Yahya Maroufi
BACKGROUND: The purpose of this study was seroepidemiological and parasitological assessment of Toxocara canis infection in children and dogs in Zabol and Chabahar, Iran. METHODS: This study was a descriptive-analytic study with a simple random sampling of children under 14 yr old, referring to urban, rural, and tribal laboratories of Zabol and Chabahar, Sistan and Baluchestan Province, Iran in 2016. Demographic data, clinical, and laboratory conditions of patients were collected through interviews, questionnaires, and blood count measuring...
January 2017: Iranian Journal of Parasitology
https://www.readbyqxmd.com/read/28761463/the-33-1-kda-excretory-secretory-protein-produced-by-toxocara-canis-larvae-serves-as-a-potential-common-biomarker-for-serodiagnosis-of-toxocariasis-in-paratenic-animals-and-human
#9
Huu-Hung Nguyen, Doan-Trung Vo, Thi-Tuyet-Trinh Thai, Thi-Thanh-Thao LE, Thanh-Dong LE, Nghia-Son Hoang
BACKGROUND: Toxocariasis is a prevalent zoonosis disease caused by the closely related nematode species Toxocara canis and Toxocara cati which parasitise Canidae and Felidae respectively. In paratenic hosts, larvae of these worms cause multiple organ damage. However, how these paratenic hosts response to these worms and whether any common biomarker can be applied for diagnosis are still unclear. METHODS: Excreted/secreted (E/S) antigens were prepared by culture of T...
January 2017: Iranian Journal of Parasitology
https://www.readbyqxmd.com/read/28754237/treatment-of-larva-migrans-syndrome-with-long-term-administration-of-albendazole
#10
Amy Hombu, Ayako Yoshida, Taisei Kikuchi, Eiji Nagayasu, Mika Kuroki, Haruhiko Maruyama
BACKGROUND: Larva migrans syndrome is a food-borne parasitic disease in humans, caused by accidental ingestion of eggs or larvae of ascarid nematodes, namely, Toxocara canis, Toxocara cati, or Ascaris suum, the roundworms commonly found in the intestines of dogs, cats and pigs respectively. When a patient is diagnosed as having larva migrans syndrome, oral-administration of albendazole is recommended, however, the regimen remains controversial worldwide. In Japan, the duration of albendazole administration is longer than those of European and North American countries...
July 14, 2017: Journal of Microbiology, Immunology, and Infection, Wei Mian Yu Gan Ran za Zhi
https://www.readbyqxmd.com/read/28727331/-toxocariasis-a-neglected-disease-in-switzerland
#11
Amélie Duréault, Carlos Perez Valdes, Lalensia Weber, Adam Ogna, Christine Sempoux, Oriol Manuel, Julie Delaloye
Toxocariasis is a zoonotic disease that occurs when humans are infected by the parasites Toxocara canis or Toxocara cati. Toxocariasis is highly prevalent in tropical areas, but can also be found in industrialized countries, particularly in rural areas. Clinical presentation can range from asymptomatic infection to more severe disease. Diagnosis of toxocariasis is based on suggestive clinical findings, eosinophilia and a positive serological testing. Albendazole represents the first-line treatment, associated with corticosteroids in case of severe disease...
April 12, 2017: Revue Médicale Suisse
https://www.readbyqxmd.com/read/28689247/loop-mediated-isothermal-amplification-as-a-reliable-assay-for-toxocara-canis-infection-in-pet-dogs
#12
Paria Khoshakhlagh, Adel Spotin, Mahmoud Mahami-Oskouei, Abbas Shahbazi, Maryam Ozlati
Keeping of infected dogs as pet results in the potential transmission risk factors for shedding helminthic infections such as toxocariasis. Lack of accurate identification of Toxocara canis eggs in non-dewormed infected pet dogs remains a diagnostic concern among researchers. In this study, dog owners were asked to fill up a questionnaire regarding their pets and their attitude towards the deworming regimen. One hundred faecal samples were collected from pet dogs (Northwest Iran) and were subsequently identified by the ZnSo4 flotation technique, PCR and loop-mediated isothermal amplification (LAMP) assays...
July 9, 2017: Parasitology Research
https://www.readbyqxmd.com/read/28682773/differentiation-of-toxocara-canis-and-toxocara-cati-based-on-pcr-rflp-analyses-of-rdna-its-and-mitochondrial-cox1-and-nad1-regions
#13
Fattaneh Mikaeili, Alexander Mathis, Peter Deplazes, Hossein Mirhendi, Afshin Barazesh, Sepideh Ebrahimi, Eshrat Beigom Kia
The definitive genetic identification of Toxocara species is currently based on PCR/sequencing. The objectives of the present study were to design and conduct an in silico polymerase chain reaction-restriction fragment length polymorphism method for identification of Toxocara species. In silico analyses using the DNASIS and NEBcutter softwares were performed with rDNA internal transcribed spacers, and mitochondrial cox1 and nad1 sequences obtained in our previous studies along with relevant sequences deposited in GenBank...
September 26, 2017: Acta Parasitologica
https://www.readbyqxmd.com/read/28664702/invasive-forms-of-canine-endoparasites-as-a-potential-threat-to-public-health-a-review-and-own-studies
#14
REVIEW
Mirosława Felsmann, Mirosław Michalski, Mariusz Felsmann, Rajmund Sokół, Józef Szarek, Emilia Strzyżewska-Worotyńska
[b]Abstract [/b] Dogs serve as the vectors of serious zoonotic parasitic diseases. In the month of May 2012 - 2014, 339 dog faeces samples from seven public sites in Chełmno, a town in northern Poland, were collected and examined to determine the gastrointestinal parasite fauna of dogs. Each faecal sample was dissected with a needle, checked for tapeworm segments and examined for parasite eggs and oocysts using the flotation and decantation method and a modified Baermann technique. Differences were observed in the degree of parasite species occurrence...
May 11, 2017: Annals of Agricultural and Environmental Medicine: AAEM
https://www.readbyqxmd.com/read/28644256/cluster-like-headache-secondary-to-focal-cervical-myelitis
#15
Dong-Eun Kim, Ji-Yun Park, Hyeonuk Ha, Geum-Jin Yoon, Bang-Hoon Cho, Seung-Han Lee
BACKGROUND: Cluster headache (CH) is characterized by attacks of severe periorbital pain associated with autonomic symptoms. As with other forms of primary headache, structural lesions should be excluded, particularly if the headache presents with an atypical pattern. CASE: We report a 41-year-old woman who had no previous history of primary headache and showed a poor response to medication for CH. The patient was finally diagnosed as secondary headache with CH feature due to focal myelitis at the cervical level of the spinal cord...
July 2017: Neurologist
https://www.readbyqxmd.com/read/28606323/coprodiagnosis-of-echinococcus-granulosus-infection-in-dogs-from-ankara-turkey
#16
Hatice Öge, Semih Öge, Bahadır Gönenç, Oğuz Sarımehmetoğlu, Gökben Özbakış
The present study were undertaken to compare two isolation techniques (centrifugal flotation and sedimentation) for recovering taeniid eggs from faecal samples, to identify E. granulosus DNA from taeniid eggs by PCR, and to determine the prevalence of E. granulosus in dogs in villages. Faecal samples were collected from 100 dogs in Ankara province. Taenia spp. eggs were found in 27% of dogs faeces. Echinococcus granulosus-specific PCR was obtained in 14 (51.85%) of the taeniid eggs-positive samples. As well as finding Taenia eggs in dogs' faeces, we also found eggs of some helminthic parasites; such as Dipylidium caninum, Toxocara canis, Toxascaris leonina, Trichuris sp...
August 15, 2017: Veterinary Parasitology
https://www.readbyqxmd.com/read/28601061/intestinal-and-external-parasites-of-raccoon-dogs-nyctereutes-procyonoides-in-western-poland
#17
Natalia Osten-Sacken, Anna Słodkowicz-Kowalska, Jarosław Pacoń, Łukasz Skrzypczak, Anna Werner
Parasites of an invasive species, the raccoon dog (Nyctereutes procyonoides) from western Poland were investigated to clarify poorly known ecological key aspects of the species. The research was conducted in two study areas: the Ujście Warty National Park and the Bogdaniec Forestry District. Intestinal samples were collected from the intestinal tracks of 39 dead animals and 51 faecal samples were collected in all seasons from latrines of raccoon dogs. Macro-parasites, their eggs and protozoan parasites were investigated to assess the taxonomic composition of parasites, the level of infection and the risk of potential transfer of dangerous parasites from raccoon dogs to people and native species...
2017: Annals of Parasitology
https://www.readbyqxmd.com/read/28591555/seroepidemiological-study-and-associated-risk-factors-of-toxocara-canis-infection-among-preschool-children-in-osun-state-nigeria
#18
Oluyomi A Sowemimo, Yueh-Lun Lee, Samuel O Asaolu, Ting-Wu Chuang, Olaoluwa P Akinwale, Bolaji O Badejoko, Vincent P Gyang, Timothy Nwafor, Emmanuel Henry, Chia-Kwung Fan
Human toxocariasis is caused by the nematode, Toxocara canis and it is a poorly understood phenomenon in Nigeria. Seroepidemiological studies have not been previously carried out among the preschool aged children in Nigeria. A cross-sectional study was conducted in pre-school children in four communities from Osun State, Nigeria between January and July 2016. A total of 308 children Aged 9 months and 5 years were studied comprising 53.2% (164/308) male and 46.8% (144/308) female. Blood samples were collected and screened for the presence of anti-Toxocara IgG antibodies by Western blot analysis based on the excretory-secretory antigens of larva T...
June 4, 2017: Acta Tropica
https://www.readbyqxmd.com/read/28545900/environmental-contamination-with-toxocara-spp-eggs-in-public-parks-and-playground-sandpits-of-greater-lisbon-portugal
#19
David Otero, Ana Margarida Alho, Rolf Nijsse, Jeroen Roelfsema, Paul Overgaauw, Luís Madeira de Carvalho
Toxocarosis is a zoonotic parasitic disease transmitted from companion animals to humans. Environmental contamination with Toxocara eggs is considered to be the main source of human infections. In Portugal, knowledge regarding the current situation, including density, distribution and environmental contamination by Toxocara spp., is largely unknown. The present study investigated environmental contamination with Toxocara spp. eggs, in soil and faecal samples collected from public parks and playground sandpits in Greater Lisbon, Portugal...
May 22, 2017: Journal of Infection and Public Health
https://www.readbyqxmd.com/read/28483730/helminth-infections-by-coprological-examination-in-sheep-dogs-and-their-zoonotic-importance
#20
Hatice Öge, Semih Öge, Gökben Özbakış, I Safa Gürcan
OBJECTIVE: This study was conducted to determine the prevalence of gastrointestinal helminths and diagnose the species of important zoonotic helminths in sheep dogs. METHODS: Firstly, fecal samples were macroscopically examined; subsequently, formalin-ethyl acetate sedimentation and ZnSO4 centrifugal floatation techniques were applied for the examination of helminth eggs. PCR technique was utilized to determine the species of E. granulosus and T. canis in dogs found positive for Taenia spp...
March 2017: Türkiye Parazitolojii Dergisi
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