Parasite最新文献_第2页

High genetic diversity of Enterocytozoon bieneusi in minks and raccoon dogs in northern China. 中国北方水貂和貉子肠虫的高度遗传多样性。

IF 2.3 2区医学

Parasite Pub Date : 2024-01-01 Epub Date: 2024-11-19 DOI: 10.1051/parasite/2024071

Nian-Yu Xue, Zhong-Yuan Li, Hai-Tao Wang, Ya Qin, Xue-Min Li, Qing-Yu Hou, Jing Jiang, Xing Yang, Hong-Bo Ni

{"title":"High genetic diversity of Enterocytozoon bieneusi in minks and raccoon dogs in northern China.","authors":"Nian-Yu Xue, Zhong-Yuan Li, Hai-Tao Wang, Ya Qin, Xue-Min Li, Qing-Yu Hou, Jing Jiang, Xing Yang, Hong-Bo Ni","doi":"10.1051/parasite/2024071","DOIUrl":"10.1051/parasite/2024071","url":null,"abstract":"Enterocytozoon bieneusi, a zoonotic pathogen prevalent in both humans and animals, is the most frequently diagnosed microsporidian species in humans and presents significant public health risks. However, data on the prevalence and genotypes of E. bieneusi in farmed minks (Neovison vison) and raccoon dogs (Nyctereutes procyonoides) in China are limited. Therefore, 275 minks (89 from Hebei Province, 57 from Heilongjiang Province, 109 from Liaoning Province, 20 from Shandong Province) and 235 raccoon dogs (114 from Hebei Province, 27 from Heilongjiang Province, 61 from Liaoning Province, 33 from Jilin Province) were examined for the prevalence and genotypes of E. bieneusi through sequence analysis of the internal transcribed spacer (ITS) region of the rRNA gene. The overall prevalence of E. bieneusi was 18.6% (95/510), with 10.5% (29/275) in farmed minks and 28.1% (66/235) in raccoon dogs. Ten genotypes (CHN-F1, genotype D, Type IV, EbpC, NCF2, NCF5, NCF6, Peru8, Henan V, and MJ5) were identified in minks and raccoon dogs. This study is the first to detect the CHN-F1, NCF2, NCF6, Peru8, and Henan V genotypes in minks and the NCF5, NCF6, and MJ5 genotypes in raccoon dogs. Additionally, the D, Type IV, and Peru8 genotypes, previously identified in humans, were also found in minks and raccoon dogs, suggesting that these animals could be potential sources of human microsporidiosis. These findings expand the understanding of E. bieneusi's host distribution in China and contribute to the prevention of zoonotic E. bieneusi infections among farmed animals.","PeriodicalId":19796,"journal":{"name":"Parasite","volume":"31 ","pages":"71"},"PeriodicalIF":2.3,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11575893/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142676429","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Trypanosoma brucei gambiense group 2 experimental in vivo life cycle: from procyclic to bloodstream form. 布鲁西-冈比亚锥虫第 2 组实验性体内生命周期：从原环到血流形式。

IF 2.9 2区医学

Parasite Pub Date : 2024-01-01 Epub Date: 2024-03-22 DOI: 10.1051/parasite/2024009

Paola Juban, Jean-Mathieu Bart, Adeline Ségard, Vincent Jamonneau, Sophie Ravel

{"title":"Trypanosoma brucei gambiense group 2 experimental in vivo life cycle: from procyclic to bloodstream form.","authors":"Paola Juban, Jean-Mathieu Bart, Adeline Ségard, Vincent Jamonneau, Sophie Ravel","doi":"10.1051/parasite/2024009","DOIUrl":"10.1051/parasite/2024009","url":null,"abstract":"Trypanosoma brucei gambiense (Tbg) group 2 is a subgroup of trypanosomes able to infect humans and is found in West and Central Africa. Unlike other agents causing sleeping sickness, such as Tbg group 1 and Trypanosoma brucei rhodesiense, Tbg2 lacks the typical molecular markers associated with resistance to human serum. Only 36 strains of Tbg2 have been documented, and therefore, very limited research has been conducted despite their zoonotic nature. Some of these strains are only available in their procyclic form, which hinders human serum resistance assays and mechanistic studies. Furthermore, the understanding of Tbg2's potential to infect tsetse flies and mammalian hosts is limited. In this study, 165 Glossina palpalis gambiensis flies were experimentally infected with procyclic Tbg2 parasites. It was found that 35 days post-infection, 43 flies out of the 80 still alive were found to be Tbg2 PCR-positive in the saliva. These flies were able to infect 3 out of the 4 mice used for blood-feeding. Dissection revealed that only six flies in fact carried mature infections in their midguts and salivary glands. Importantly, a single fly with a mature infection was sufficient to infect a mammalian host. This Tbg2 transmission success confirms that Tbg2 strains can establish in tsetse flies and infect mammalian hosts. This study describes an effective in vivo protocol for transforming Tbg2 from procyclic to bloodstream form, reproducing the complete Tbg2 cycle from G. p. gambiensis to mice. These findings provide valuable insights into Tbg2's host infectivity, and will facilitate further research on mechanisms of human serum resistance.","PeriodicalId":19796,"journal":{"name":"Parasite","volume":"31 ","pages":"15"},"PeriodicalIF":2.9,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10960050/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140194380","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Chewing lice of Bearded Reedling (Panurus biarmicus) and diversity of louse-host associations of birds in reed beds in Slovakia. 大胡子芦苇（Panurus biarmicus）的咀嚼虱和斯洛伐克芦苇丛中鸟类虱寄主关系的多样性。

IF 2.9 2区医学

Parasite Pub Date : 2024-01-01 Epub Date: 2024-02-08 DOI: 10.1051/parasite/2024006

Oldřich Sychra, Lucie Sušilová, Tomáš Najer, Ivan Literák, Ivo Papoušek, Jana Martinů, Alfréd Trnka, Miroslav Capek

{"title":"Chewing lice of Bearded Reedling (Panurus biarmicus) and diversity of louse-host associations of birds in reed beds in Slovakia.","authors":"Oldřich Sychra, Lucie Sušilová, Tomáš Najer, Ivan Literák, Ivo Papoušek, Jana Martinů, Alfréd Trnka, Miroslav Capek","doi":"10.1051/parasite/2024006","DOIUrl":"10.1051/parasite/2024006","url":null,"abstract":"A total of 1,621 wild birds representing 34 species were examined for chewing lice in reed beds in southwestern Slovakia during the pre-breeding migration 2008-2009 and 2016-2019. A total of 377 (23.3%) birds representing 15 species were parasitized by 26 species of chewing lice of 12 genera. Dominant genera were Penenirmus (with dominance 32.6%) and Menacanthus (29.4%), followed by Brueelia (12.6%), Acronirmus (10.8%), Philopterus (7.7%), and Myrsidea (4.2%). We evaluated 33 host-louse associations including both 1) host-generalist, parasitizing more than one host species and host-specific lice, occurring only on a single host species, and 2) lice species with large range geographic distribution, reported across the range of the distribution of their hosts and lice species with only occasional records from a limited area within the range of their hosts. The Bearded Reedling, Panurus biarmicus (Linnaeus, 1758), was parasitized by two species of chewing lice, Menacanthus brelihi Balát, 1981 and Penenirmus visendus (Złotorzycka, 1964), with conspicuously different prevalences (5.6% vs. 58.2%, respectively; n = 251). New material enabled us to redescribe both species of lice: the first one is resurrected from previous synonymy as a valid species. A fragment of the mitochondrial cytochrome oxidase I gene was sequenced from these two species in order to assess their relative phylogenetic position within their genera. Our study demonstrates the importance of an adequate identification of parasites, especially on rarely examined and endangered hosts.","PeriodicalId":19796,"journal":{"name":"Parasite","volume":"31 ","pages":"8"},"PeriodicalIF":2.9,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10854484/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139707506","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Galactomannan inhibits Trichinella spiralis invasion of intestinal epithelium cells and enhances antibody-dependent cellular cytotoxicity related killing of larvae by driving macrophage polarization. 半乳甘露聚糖可抑制旋毛虫侵入肠上皮细胞，并通过驱动巨噬细胞极化增强抗体依赖性细胞毒性，从而杀死幼虫。

IF 2.9 2区医学

Parasite Pub Date : 2024-01-01 Epub Date: 2024-02-08 DOI: 10.1051/parasite/2024002

Ru Zhang, Yao Zhang, Shu Wei Yan, Yong Kang Cheng, Wen Wen Zheng, Shao Rong Long, Zhong Quan Wang, Jing Cui

{"title":"Galactomannan inhibits Trichinella spiralis invasion of intestinal epithelium cells and enhances antibody-dependent cellular cytotoxicity related killing of larvae by driving macrophage polarization.","authors":"Ru Zhang, Yao Zhang, Shu Wei Yan, Yong Kang Cheng, Wen Wen Zheng, Shao Rong Long, Zhong Quan Wang, Jing Cui","doi":"10.1051/parasite/2024002","DOIUrl":"10.1051/parasite/2024002","url":null,"abstract":"Previous studies have shown that recombinant Trichinella spiralis galectin (rTsgal) is characterized by a carbohydrate recognition domain sequence motif binding to beta-galactoside, and that rTsgal promotes larval invasion of intestinal epithelial cells. Galactomannan is an immunostimulatory polysaccharide composed of a mannan backbone with galactose residues. The aim of this study was to investigate whether galactomannan inhibits larval intrusion of intestinal epithelial cells and enhances antibody-dependent cellular cytotoxicity (ADCC), killing newborn larvae by polarizing macrophages to the M1 phenotype. The results showed that galactomannan specially binds to rTsgal, and abrogated rTsgal facilitation of larval invasion of intestinal epithelial cells. The results of qPCR, Western blotting, and flow cytometry showed that galactomannan and rTsgal activated macrophage M1 polarization, as demonstrated by high expression of iNOS (M1 marker) and M1 related genes (IL-1β, IL-6, and TNF-α), and increased CD86+ macrophages. Galactomannan and rTsgal also increased NO production. The killing ability of macrophage-mediated ADCC on larvae was also significantly enhanced in galactomannan- and rTsgal-treated macrophages. The results demonstrated that Tsgal may be considered a potential vaccine target molecule against T. spiralis invasion, and galactomannan may be a novel adjuvant therapeutic agent and potential vaccine adjuvant against T. spiralis infection.","PeriodicalId":19796,"journal":{"name":"Parasite","volume":"31 ","pages":"6"},"PeriodicalIF":2.9,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10854486/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139707508","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Global prevalence and risk factors of Enterocytozoon bieneusi infection in humans: a systematic review and meta-analysis. 生物肠虫感染的全球流行率和风险因素：系统回顾和荟萃分析。

IF 2.3 2区医学

Parasite Pub Date : 2024-01-01 Epub Date: 2024-02-09 DOI: 10.1051/parasite/2024007

Yanchun Wang, Xiao-Man Li, Xing Yang, Xiang-Yu Wang, Yong-Jie Wei, Yanan Cai, Hong-Li Geng, Xin-Bo Yang, Hai-Long Yu, Hongwei Cao, Jing Jiang

{"title":"Global prevalence and risk factors of Enterocytozoon bieneusi infection in humans: a systematic review and meta-analysis.","authors":"Yanchun Wang, Xiao-Man Li, Xing Yang, Xiang-Yu Wang, Yong-Jie Wei, Yanan Cai, Hong-Li Geng, Xin-Bo Yang, Hai-Long Yu, Hongwei Cao, Jing Jiang","doi":"10.1051/parasite/2024007","DOIUrl":"10.1051/parasite/2024007","url":null,"abstract":"Enterocytozoon bieneusi is one of the most important zoonotic pathogens. In this study, we present a systematic review and meta-analysis of the prevalence of human E. bieneusi infection in endemic regions and analyze the various potential risk factors. A total of 75 studies were included. Among 31,644 individuals tested, 2,291 (6.59%) were E. bieneusi-positive. The highest prevalence of E. bieneusi in the male population was 5.50%. The prevalence of E. bieneusi in different age groups was varied, with 10.97% in teenagers. The prevalence of E. bieneusi in asymptomatic patients (6.49%) is significantly lower than that in HIV-infected patients (11.49%), and in patients with diarrheal symptoms (16.45%). Rural areas had a higher rate (7.58%) than urban ones. The prevalence of E. bieneusi in humans was the highest (6.42%) at altitudes <10 m. Moreover, the temperate zone marine climate (13.55%) had the highest prevalence. A total of 69 genotypes of E. bieneusi have been found in humans. This is the first global study regarding E. bieneusi prevalence in humans. Not only people with low immunity (such as the elderly, children, people with HIV, etc.), but also people in Europe in temperate marine climates should exercise caution to prevent infection with E. bieneusi during contact process with animals.","PeriodicalId":19796,"journal":{"name":"Parasite","volume":"31 ","pages":"9"},"PeriodicalIF":2.3,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10860563/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139723539","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Metabarcoding of protozoa and helminth in black-necked cranes: a high prevalence of parasites and free-living amoebae. 黑颈鹤体内原生动物和蠕虫的代谢编码：寄生虫和自由生活变形虫的高流行率。

IF 2.9 2区医学

Parasite Pub Date : 2024-01-01 Epub Date: 2024-05-30 DOI: 10.1051/parasite/2024028

Mengshi Yu, Wenhao Li, Xin He, Guiwen He, Yonfang Yao, Yuanjian Wang, Mingcui Shao, Tingsong Xiong, Huailiang Xu, Junsong Zhao

{"title":"Metabarcoding of protozoa and helminth in black-necked cranes: a high prevalence of parasites and free-living amoebae.","authors":"Mengshi Yu, Wenhao Li, Xin He, Guiwen He, Yonfang Yao, Yuanjian Wang, Mingcui Shao, Tingsong Xiong, Huailiang Xu, Junsong Zhao","doi":"10.1051/parasite/2024028","DOIUrl":"10.1051/parasite/2024028","url":null,"abstract":"Parasites and free-living amoebae (FLA) are common pathogens that pose threats to wildlife and humans. The black-necked crane (Grus nigricollis) is a near-threatened species and there is a shortage of research on its parasite diversity. Our study aimed to use noninvasive methods to detect intestinal parasites and pathogenic FLA in G. nigricollis using high-throughput sequencing (HTS) based on the 18S rDNA V9 region. A total of 38 fresh fecal samples were collected in Dashanbao, China, during the overwintering period (early-, middle I-, middle II-, and late-winter). Based on the 18S data, eight genera of parasites were identified, including three protozoan parasites: Eimeria sp. (92.1%) was the dominant parasite, followed by Tetratrichomonas sp. (36.8%) and Theileria sp. (2.6%). Five genera of helminths were found: Echinostoma sp. (100%), Posthodiplostomum sp. (50.0%), Euryhelmis sp. (26.3%), Eucoleus sp. (50.0%), and Halomonhystera sp. (2.6%). Additionally, eight genera of FLA were detected, including the known pathogens Acanthamoeba spp. (n = 13) and Allovahlkampfia spp. (n = 3). Specific PCRs were used to further identify the species of some parasites and FLA. Furthermore, the 18S data indicated significant changes in the relative abundance and genus diversity of the protozoan parasites and FLA among the four periods. These results underscore the importance of long-term monitoring of pathogens in black-necked cranes to protect this near-endangered species.","PeriodicalId":19796,"journal":{"name":"Parasite","volume":"31 ","pages":"28"},"PeriodicalIF":2.9,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11141520/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141180360","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Tick-borne Apicomplexa in wildlife and ticks of French Guiana. 法属圭亚那野生动物和蜱虫中的蜱传Apicomplexa。

IF 2.3 2区医学

Parasite Pub Date : 2024-01-01 Epub Date: 2024-08-15 DOI: 10.1051/parasite/2024052

Rachid Koual, Benoit de Thoisy, Xavier Baudrimont, Stéphane Garnier, Frédéric Delsuc, Olivier Duron

引用次数: 0

Diversity of biting midges, mosquitoes and sand flies at four dog shelters in rural and peri-urban areas of Central Morocco. 摩洛哥中部农村和城郊地区四个狗收容所中咬螨、蚊子和沙蝇的多样性。

IF 2.3 2区医学

Parasite Pub Date : 2024-01-01 Epub Date: 2024-09-27 DOI: 10.1051/parasite/2024057

Abderrahmane Zahri, Mehdi Ahlamine, Fatima-Zahra Abou-Elaaz, Hasnaa Talimi, Ikhlass El Berbri, Thomas Balenghien, Maria Bourquia

{"title":"Diversity of biting midges, mosquitoes and sand flies at four dog shelters in rural and peri-urban areas of Central Morocco.","authors":"Abderrahmane Zahri, Mehdi Ahlamine, Fatima-Zahra Abou-Elaaz, Hasnaa Talimi, Ikhlass El Berbri, Thomas Balenghien, Maria Bourquia","doi":"10.1051/parasite/2024057","DOIUrl":"https://doi.org/10.1051/parasite/2024057","url":null,"abstract":"Blood-feeding arthropods are involved in the transmission of several pathogens that have a major impact on public health. Entomological investigations highlighted the composition, abundance, and diversity of flying hematophagous arthropods at four dog shelters located in central Morocco during an eight-month study, with the aim of discussing their vectorial roles and assessing the risk of these shelters as foci for zoonotic diseases. Monitoring of the arthropod fauna for 64 catch nights resulted in the collection of 2,321 biting midges (Ceratopogonidae), 570 mosquitoes (Culicidae), and 475 sand flies (Psychodidae). Fourteen Culicoides species were recorded and dominant species were Culicoides imicola (55.96%), C. paolae (16.07%), C. circumscriptus (10.29%), and C. newsteadi (5.77%). Three mosquito species were collected, including Culex pipiens s.l. (96.84%), Culiseta longiareolata (2.80%), and Cx. perexiguus (0.36%). Ten sand fly species were collected, including seven Phlebotomus species (62.70%) and three Sergentomyia species (37.30%); Sergentomyia minuta was the most dominant species (34.31%), followed by Phlebotomus sergenti (32.42%), typical Ph. perniciosus (8.63%), Ph. alexandri (6.94%), and Ph. riouxi (6.52%). The coexistence of several vectors in these study areas indicates the potential circulation of a wide range of pathogens, including zoonotic ones, thus requiring the implementation of surveillance and control programs to prevent the emergence and spread of disease outbreaks.","PeriodicalId":19796,"journal":{"name":"Parasite","volume":"31 ","pages":"57"},"PeriodicalIF":2.3,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11433837/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142351526","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Asymptomatic Leishmania infantum infection in dogs and dog owners in an endemic area in southeast France. 法国东南部一个流行地区的狗和狗主人无症状幼年利什曼原虫感染。

IF 2.9 2区医学

Parasite Pub Date : 2024-01-01 Epub Date: 2024-03-26 DOI: 10.1051/parasite/2024019

Mallorie Hide, Gregory Michel, Kevin Legueult, Raphaelle Pin, Susana Leonard, Loïc Simon, Anne-Laure Bañuls, Pascal Delaunay, Pierre Marty, Christelle Pomares

{"title":"Asymptomatic Leishmania infantum infection in dogs and dog owners in an endemic area in southeast France.","authors":"Mallorie Hide, Gregory Michel, Kevin Legueult, Raphaelle Pin, Susana Leonard, Loïc Simon, Anne-Laure Bañuls, Pascal Delaunay, Pierre Marty, Christelle Pomares","doi":"10.1051/parasite/2024019","DOIUrl":"10.1051/parasite/2024019","url":null,"abstract":"The prevalence of asymptomatic leishmaniasis in dogs and their owners in the main endemic areas of France has not been studied to date. The objective of this study was to quantify asymptomatic Leishmania infantum infection in southeast France in healthy people and their dogs using molecular and serological screening techniques. We examined the presence of parasitic DNA using specific PCR targeting kinetoplast DNA (kDNA) and specific antibodies by serology (ELISA for dogs and Western blot for humans) among immunocompetent residents and their dogs in the Alpes-Maritimes. Results from 343 humans and 607 dogs were included. 46.9% (n = 161/343) of humans and 18.3% (n = 111/607) of dogs were PCR positive; 40.2% of humans (n = 138/343) and 9.9% of dogs (n = 60/607) were serology positive. Altogether, 66.2% of humans (n = 227) and 25.7% of dogs (n = 156) had positive serologies and/or positive PCR test results. Short-haired dogs were more frequently infected (71.8%, n = 112) than long-haired dogs (12.2%, n = 19) (p = 0.043). Dogs seemed to be more susceptible to asymptomatic infection according to their breed types (higher infection rates in scenthounds, gun dogs and herding dogs) (p = 0.04). The highest proportion of dogs and human asymptomatic infections was found in the Vence Region, corresponding to 28.2% (n = 20/71) of dogs and 70.5% (n = 31/44) of humans (4.5/100,000 people). In conclusion, the percentage of infections in asymptomatic humans is higher than in asymptomatic dogs in the studied endemic area. It is questionable whether asymptomatic infection in humans constitutes a risk factor for dogs.","PeriodicalId":19796,"journal":{"name":"Parasite","volume":"31 ","pages":"16"},"PeriodicalIF":2.9,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10964848/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140288713","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Small intestinal flukes of the genus Metagonimus (Digenea: Heterophyidae) in Europe and the Middle East: A review of parasites with zoonotic potential. 欧洲和中东的Metagonimus属小肠吸虫（Digenea: Heterophyidae）：具有人畜共患病潜能的寄生虫综述。

IF 2.9 2区医学

Parasite Pub Date : 2024-01-01 Epub Date: 2024-03-29 DOI: 10.1051/parasite/2024016

Tomáš Scholz, Roman Kuchta, Daniel Barčák, Gábor Cech, Mikuláš Oros

{"title":"Small intestinal flukes of the genus Metagonimus (Digenea: Heterophyidae) in Europe and the Middle East: A review of parasites with zoonotic potential.","authors":"Tomáš Scholz, Roman Kuchta, Daniel Barčák, Gábor Cech, Mikuláš Oros","doi":"10.1051/parasite/2024016","DOIUrl":"10.1051/parasite/2024016","url":null,"abstract":"The heterophyid trematode Metagonimus romanicus (Ciurea, 1915) (Digenea) is redescribed on the basis of type material from domestic dogs (Canis familiaris) in Romania, vouchers from experimentally infected cats (Felis catus) and adults recovered from golden hamsters (Mesocricetus auratus) infected with metacercariae from scales of chub (Squalius cephalus) and common nase (Chondrostoma nasus) (Cypriniformes: Leuciscidae) in Hungary. This trematode, endemic to Europe and neighbouring regions (northwestern Türkiye), was previously misidentified as M. yokogawai (Katsurada, 1912), a zoonotic parasite of humans in East Asia. However, the two species differ considerably both genetically and morphologically, e.g., in the position of the ventral sucker, the presence of the prepharynx, the anterior extent of the vitelline follicles and the posterior extent of the uterus. Metagonimus ciureanus (Witenberg, 1929) (syn. Dexiogonimus ciureanus Witenberg, 1929), described from domestic cats and dogs in Israel, is a valid species distributed in the Middle East and Transcaucasia, which is also confirmed by molecular data. It differs from all Metagonimus species, including M. romanicus, in having symmetrical testes instead of the oblique testes of the other congeners. The zoonotic significance of M. romanicus and M. ciureanus is unclear, but appears to be low in Europe, mainly because raw or undercooked, whole fish with scales are generally not consumed. Accidental infection of fishermen by metacercariae in the scales when cleaning fish is more likely, but has never been reported. Remains of cyprinoids with scales infected with metacercariae of Metagonimus spp. can be an important natural source of infection for dogs, cats, and other carnivores, which can serve as a reservoir for these parasites.","PeriodicalId":19796,"journal":{"name":"Parasite","volume":"31 ","pages":"20"},"PeriodicalIF":2.9,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10979786/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140318850","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0