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zoonotic parasitosis

Miao-Miao Sun, Guo-Hua Liu, Katsuhiko Ando, Ho-Choon Woo, Jun Ma, Woon-Mok Sohn, Hiromu Sugiyama, Xing-Quan Zhu
Gnathostomiasis is a foodborne zoonotic parasitosis caused by Gnathostoma nematodes. It has caused significant public problems worldwide, but its molecular biology is limited. The purpose of this study was to decode the complete mitochondrial (mt) genomes of Gnathostoma nipponicum and Gnathostoma sp., and compare their mt sequences with other Gnathostoma species. The complete mt genome sequences were amplified by long-range PCR and determined by subsequent primer walking. The complete mt genomes of G. nipponicum and Gnathostoma sp...
December 23, 2016: Infection, Genetics and Evolution
Concetta Maria Messina, Federica Pizzo, Andrea Santulli, Ivana Bušelić, Mate Boban, Stjepan Orhanović, Ivona Mladineo
BACKGROUND: In countries with elevated prevalence of zoonotic anisakiasis and high awareness of this parasitosis, a considerable number of cases that associate Anisakis sp. (Nematoda, Anisakidae) and different bowel carcinomas have been described. Although neoplasia and embedded larvae were observed sharing the common site affected by chronic inflammation, no association between the nematode and malignancy were directly proved. Similarly, no data are available about the effect of secretory and excretory products of infecting larvae at the host's cellular level, except in respect to allergenic interaction...
November 25, 2016: Parasites & Vectors
Alynne da Silva Barbosa, Otilio Machado Pereira Bastos, Claudia Maria Antunes Uchôa, Alcides Pissinatti, Augusto César Machado Pereira Bastos, Igo Vieira de Souza, Laís Verdan Dib, Eduarda Peixoto Azevedo, Mayara Perlingeiro de Siqueira, Matheus Lessa Cardozo, Maria Regina Reis Amendoeira
Balantidium coli is a protozoon that can cause dysentery in humans, pigs and nonhuman primates, with zoonotic potential. In the literature, there is still little information on the effectiveness of different laboratory techniques for diagnosing this disease. This study compared and evaluated the performance of the Lutz, modified Ritchie, Faust, modified Sheather and direct examination techniques for detecting cysts of this protozoon. Between 2012 and 2014, 1905 fecal samples were collected from captive animals in the state of Rio de Janeiro...
July 2016: Revista Brasileira de Parasitologia Veterinária, Brazilian Journal of Veterinary Parasitology
Natalie E Nieuwenhuizen
Anisakis species are marine nematodes which can cause zoonotic infection in humans if consumed in raw, pickled or undercooked fish and seafood. Infection with Anisakis is associated with abdominal pain, nausea and diarrhoea and can lead to massive infiltration of eosinophils and formation of granulomas in the gastrointestinal tract if the larvae are not removed. Re-infection leads to systemic allergic reactions such as urticarial or anaphylaxis in some individuals, making Anisakis an important source of hidden allergens in seafood...
September 2016: Parasite Immunology
Donato Antonio Raele, Nicola Pugliese, Domenico Galante, Laura Maria Latorre, Maria Assunta Cafiero
Dirofilariasis by Dirofilaria repens is an important mosquito vector borne parasitosis, and the dog represents the natural host and reservoir of the parasite. This filarial nematode can also induce disease in humans, and in the last decades an increasing number of cases have been being reported. The present study describes the first loop mediated isothermal amplification (LAMP) assay to detect D. repens DNA in blood and mosquitoes. Two versions of the technique have been developed and described: in the first, the amplification is followed point by point through a real time PCR instrument (ReT-LAMP); in the second, the amplification is visualized by checking UV fluorescence of the reaction mixture after addition of propidium iodide (PI-LAMP)...
June 2016: PLoS Neglected Tropical Diseases
Andreas Neumayr, Jose Ollague, Francisco Bravo, Eduardo Gotuzzo, Pedro Jimenez, Scott A Norton, Pham Ngoc Doanh, Yukifumi Nawa, Yoichiro Horii, Beatrice Nickel, Hanspeter Marti
Gnathostomiasis is a zoonotic parasitosis endemic in many Asian and some Latin American countries. Most human infections are caused by Gnathostoma spinigerum in Asia and Gnathostoma binucleatum in the Americas, and recently, imported cases have been increasing among travelers returning from endemic regions. Confirmation of the clinical diagnosis relies largely on serologic tests, with a G. spinigerum-antigen-based immunoblot currently being the diagnostic method of choice. However, we repeatedly experienced that sera from patients with clinically suspected American gnathostomiasis gave negative results in this assay...
August 3, 2016: American Journal of Tropical Medicine and Hygiene
Fen Wang, Bin Ye
Cyst echinococcosis caused by the matacestodal larvae of Echinococcus granulosus (Eg), is a chronic, worldwide, and severe zoonotic parasitosis. The treatment of cyst echinococcosis is still difficult since surgery cannot fit the needs of all patients, and drugs can lead to serious adverse events as well as resistance. The screen of target proteins interacted with new anti-hydatidosis drugs is urgently needed to meet the prevailing challenges. Here, we analyzed the sequences and structure properties, and constructed a phylogenetic tree by bioinformatics methods...
September 2016: Parasitology Research
Shi-ping Wang, Xin He, Yun-fei Zhou
Schistosomiasis is a type of zoonotic parasitosis that severely impairs human health. Rapid detection of infection sources is a key to the control of schistosomiasis. With the effective control of schistosomiasis in China, the detection techniques for infection sources have also been developed. The rate and the intensity of infection among humans and livestocks have been significantly decreased in China, as the control program has entered the transmission control stage in most of the endemic areas. Under this situation, the traditional etiological diagnosing techniques and common immunological methods can not afford rapid detection of infection sources of schistosomiasis...
December 2015: chinese Journal of Parasitology & Parasitic Diseases
Anastasia Diakou, Angela Di Cesare, Stavroula Tzimoulia, Ioannis Tzimoulias, Donato Traversa
The eyeworm Thelazia callipaeda has been reported in different European countries, i.e. Italy, France, Germany, Switzerland, Spain, Portugal, Bosnia and Herzegovina, Croatia and Romania. The present article describes the first autochthonous case of ocular thelaziosis in a dog from Greece, thus revealing a new spot of infection in Europe. The dog in this case report, most likely infected at the northern borders of Greece, was referred to a private veterinary practice with conjunctivitis, oedema, keratitis, epiphora and mucoid discharge in both eyes...
July 2015: Parasitology Research
Teresa Baptista-Fernandes, Manuel Rodrigues, Dulce Domingues, Lucília Monteiro, Paulo Paixão, Patrícia Pereira, Raquel Tavares, Paulo Rodrigues, Isabel Maurício, Silvana Belo, Cristina Toscano
Human infections caused by Dirofilaria repens, a cosmopolitan zoonotic parasitosis endemic in Southern and Eastern Europe and Asia still is an underdiagnosed infection due to parasite identification difficulties. Here, we report the first human case of subcutaneous dirofilariasis by D. repens diagnosed in Portugal. This was probably an imported case from India, as judged by epidemiological and clinical data. With this presentation we aim to alert clinicians for the emergence of vector-borne zoonoses associated with global warming and international travel...
October 2015: Parasitology International
David Pace
Leishmaniasis remains an important neglected tropical infection that affects children more than adults. Geographical variation exists in the distribution of the various Leishmania species. Although the majority of the disease burden is found in poor countries, leishmaniasis is also endemic in several countries within Southern Europe. Transmission is mediated by the sandfly and may follow an anthroponotic or zoonotic cycle that also varies by region. The expression of leishmaniasis depends on a complex interaction between the type of infecting species and the host immune response...
November 2014: Journal of Infection
Chung-Jung Fu, Ting-Wu Chuang, Huei-Shan Lin, Chih-Hsiung Wu, Yung-Ching Liu, Mailynn K Langinlur, Min-Yun Lu, Wesley Wei-Wen Hsiao, Chia-Kwung Fan
BACKGROUND: Toxocariasis, which is predominantly caused by Toxocara canis (T. canis) infection, is a common zoonotic parasitosis worldwide; however, the status of toxocariasis endemicity in the Republic of the Marshall Islands (RMI) remains unknown. METHODS: A seroepidemiological investigation was conducted among 166 primary school children (PSC) aged 7-12 years from the capital area of the RMI. Western blots based the excretory-secretory antigens of larval T. canis (TcES) was employed, and children were considered seropositive if their serum reacted with TcES when diluted at a titer of 1:64...
2014: BMC Infectious Diseases
Yanhua Wang, Hong Yin
Toxoplasma gondii is an obligate intracellular parasitic protozoan that has a wide host range and causes a zoonotic parasitosis called toxoplasmosis. This infection causes significant morbidity, costs for care and loss of productivity and suffering. The most effective measures to minimize this parasite's harm to patients are prompt diagnosis and treatment and preventing infection. A parasite surface antigen, SAG1, is considered an important antigen for the development of effective diagnostic tests or subunit vaccines...
2014: Parasites & Vectors
A P Pipia, A Varcasia, G Tosciri, S Seu, M L Manunta, M C Mura, G Sanna, C Tamponi, E Brianti, A Scala
Dog heartworms Angiostrongylus vasorum and Dirofilaria immitis cause severe parasitological diseases; the importance of these parasitosis is growing due to their health impact on animals, the possible zoonotic implications and the recent spreading across several European countries and previously non-endemic areas. The aim of this study is to update the epidemiological scenario of cardiopulmonary nematodes A. vasorum and D. immitis in dogs of Sardinia island and to perform a morphological identification of larvae by the use of the Baermann and Knott techniques respectively and the molecular characterization of the mitochondrial cytochrome c oxidase subunit I (cox1) and the second ribosomal transcribed spacer region (ITS-2) of larvae L1 of A...
April 2014: Parasitology Research
Beatriz Brener, Patricia Riddell Millar, Danuza Pinheiro Bastos Garcia de Mattos, Flávia Uchôa, Bethânia Bastos, Ingrid Rodrigues Lyrio, Pedro Luis Aragon, Adriana Pittella Sudré
Report of two canine dirofilariosis cases of ectopic location in the state of Rio de Janeiro. This is the first report of erratic migration for this parasitosis in dogs in the state, calling attention to the short period of time between the two cases. The fact that the area is endemic for this parasite, its zoonotic potential and the report of human cases in the state, demonstrates that authorities should be alerted to the control programs of dirofilariosis along with the pathogenic profile of the infections...
May 2012: Revista do Instituto de Medicina Tropical de São Paulo
Eva Trifina, Johannes Spenger, Shahin Zandieh, Jörg Haller, Herbert Auer, Christian Osterreicher, Klaus Klaushofer, Peter Mikosch
Fascioliosis is a zoonotic disease caused by Fasciola hepatica (common liver fluke). Initial clinical symptoms are frequently non-specific. Even after the development of liver tumors, a range of different underlying disorders will have to be considered. The rare cause of a parasitosis is not always included in the differential diagnostic work up. We report on a 41-year-old truck driver from Middle East who was admitted at our hospital due to ongoing upper abdominal pain, fatigue, night sweat and nausea lasting for weeks...
September 2011: Wiener Medizinische Wochenschrift
Juri Katchanov, Kittisak Sawanyawisuth, Verajit Chotmongkoi, Yukifumi Nawa
Gnathostomiasis is a foodborne zoonotic helminthic infection caused by the third-stage larvae of Gnathostoma spp. nematodes. The most severe manifestation involves infection of the central nervous system, neurognathostomiasis. Although gnathostomiasis is endemic to Asia and Latin America, almost all neurognathostomiasis cases are reported from Thailand. Despite high rates of illness and death, neurognathostomiasis has received less attention than the more common cutaneous form of gnathostomiasis, possibly because of the apparent geographic confinement of the neurologic infection to 1 country...
July 2011: Emerging Infectious Diseases
Mohamed Tolba El-Metwally, Mohamed A Elwan, Mamdouh M El-Bahnasawy, Hazem H M Khalil, Ahmad A A Sabah, Ayman T A Morsy
Over six months, 329 suggestive consecutive brucellosis human cases were diagnosed in attending the out-patients clinics of Al-Azhar and Ain Shams Universities Hospitals and Giza Governorate Farmers. They were 100 females and 229 males with ages ranged between 15-65 years old. A total of 213 (64.75%) were working in dairy farm and/or consumed raw milk, 16 (14.85%) used home slaughtering of sheep, and 100 (30.4%) were working in Giza Government slaughter-house. Clinically and by ELISA-IgM 259 out of 329 the subjects were proven brucellosis patients (77...
April 2011: Journal of the Egyptian Society of Parasitology
Donato Traversa
Trichuris vulpis, the dog whipworm, causes an intestinal parasitosis of relevance in current canine veterinary practice. Its occurrence is well-known in pets, kennelled dogs and stray animals, and its eggs contaminate the ground in urban areas all over the world. Moreover, T. vulpis has been occasionally incriminated, though not convincingly substantiated, as a cause of zoonosis. This nematode is erroneously considered an "old-fashioned" pathogen with a consequent lack of up- to- date knowledge on several aspects of the infection...
2011: Parasites & Vectors
Christen Rune Stensvold, Henrik Vedel Nielsen, Eskild Petersen
The clinical presentation of toxocariasis, a zoonotic parasitosis transmitted from dogs and cats to humans, can be very diverse, which is one of the reasons why Toxocara-related disease may go unnoticed. This paper gives a brief summary of the various clinical presentations (covert/common toxocariasis, visceral larva migrans, ocular toxocariasis and neurotoxocariasis), diagnostic and differential-diagnostic considerations as well as treatment and prevention. In brief, the diagnosis of human toxocariasis relies mainly on patient data, anamnestic information, symptoms, eosinophil count and total-IgE levels...
January 17, 2011: Ugeskrift for Laeger
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