Parasite最新文献_第2页

Anisakid parasite diversity in a pygmy sperm whale, Kogia breviceps (Cetacea: Kogiidae) stranded at the edge of its distribution range in the Northeast Atlantic Ocean. 搁浅在大西洋东北部分布区边缘的侏儒抹香鲸 Kogia breviceps（鲸目动物：Kogiidae）体内的 Anisakid 寄生虫多样性。

IF 2.3 2区医学

Parasite Pub Date : 2024-01-01 Epub Date: 2024-07-30 DOI: 10.1051/parasite/2024042

Paolo Cipriani, Marialetizia Palomba, Lucilla Giulietti, Renato Aco-Alburqueque, Roberta Andolfi, Mariel Ten Doeschate, Andrew Brownlow, Nicholas J Davison, Simonetta Mattiucci

{"title":"Anisakid parasite diversity in a pygmy sperm whale, Kogia breviceps (Cetacea: Kogiidae) stranded at the edge of its distribution range in the Northeast Atlantic Ocean.","authors":"Paolo Cipriani, Marialetizia Palomba, Lucilla Giulietti, Renato Aco-Alburqueque, Roberta Andolfi, Mariel Ten Doeschate, Andrew Brownlow, Nicholas J Davison, Simonetta Mattiucci","doi":"10.1051/parasite/2024042","DOIUrl":"10.1051/parasite/2024042","url":null,"abstract":"Anisakid nematodes are a globally distributed group of marine mammal parasites. Kogiid whales, including the pygmy sperm whale Kogia breviceps, host an assemblage of specific anisakid species. Currently, three species are known to be specific to kogiid hosts, i.e., Skrjabinisakis paggiae, S. brevispiculata, and the less studied Pseudoterranova ceticola. The aim of this study was to investigate the species diversity of anisakid nematodes sampled from a pygmy sperm whale stranded in 2013 at the edge of its distribution range in the Northeast Atlantic, specifically in the North of Scotland. Nematodes were assigned to genus level based on morphology and identified by sequence analysis of the mtDNA cox2 gene and the rDNA ITS region. The present finding represents the first observation of syntopic occurrence of adult stages of S. brevispiculata, S. paggiae, and P. ceticola in a pygmy sperm whale in the Northeast Atlantic, and represent the northernmost record of these species in this area. Skrjabinisakis brevispiculata was the most abundant species, accounting for 55% of the identified nematodes, predominantly in the adult stage. Anisakis simplex (s.s.) was also abundant, with most specimens in the preadult stage, followed by S. paggiae and P. ceticola. The pygmy sperm whale is rarely documented in Scottish waters, and its occurrence in the area could suggest expansion of its geographic range. The presence of S. brevispiculata, S. paggiae, and P. ceticola in this whale species in this region may indicate a shift in the whole host community involved in the life cycle of these parasites in northern waters. However, it is also plausible that these parasites were acquired while the whale was feeding in more southern regions, before migrating northbound.","PeriodicalId":19796,"journal":{"name":"Parasite","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11290333/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141856150","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

Novel gene arrangement in the mitochondrial genome of Aspersentis megarhynchus (Acanthocephala, Echinorhynchida, Heteracanthocephalidae), and its phylogenetic implications. Aspersentis megarhynchus（棘鱼科、棘鱼属、异棘鱼科）线粒体基因组中的新基因排列及其系统发育意义。

IF 2.3 2区医学

Parasite Pub Date : 2024-01-01 Epub Date: 2024-10-08 DOI: 10.1051/parasite/2024064

Yuan-Yuan Xie, Hui-Xia Chen, Tetiana A Kuzmina, Olga Lisitsyna, Liang Li

{"title":"Novel gene arrangement in the mitochondrial genome of Aspersentis megarhynchus (Acanthocephala, Echinorhynchida, Heteracanthocephalidae), and its phylogenetic implications.","authors":"Yuan-Yuan Xie, Hui-Xia Chen, Tetiana A Kuzmina, Olga Lisitsyna, Liang Li","doi":"10.1051/parasite/2024064","DOIUrl":"10.1051/parasite/2024064","url":null,"abstract":"The Heteracanthocephalidae Petrochenko, 1956 is a rare family of acanthocephalans mainly parasitic in fishes. The pattern of mitogenomic evolution of the Heteracanthocephalidae is still unknown, and the phylogenetic relationships of the Heteracanthocephalidae with the other 14 families within the order Echinorhynchida remain unclear. In the present study, the complete mitochondrial genome of Aspersentis megarhynchus (von Linstow, 1892) Golvan, 1960 was sequenced and annotated for the first time, which represents the first mitogenomic data for the genus Aspersentis and also for the family Heteracanthocephalidae. The mitogenome of A. megarhynchus has 14,661 bp and includes 36 genes, containing 12 protein-coding genes (PCGs) (missing atp8), 22 tRNA genes, and 2 ribosomal RNAs (rrnS and rrnL), plus two non-coding regions. Comparative mitochondrial genomic analysis revealed that the presence of translocations of several tRNA genes (trnV, trnE, and trnT) and the gene arrangement in the mitogenome of A. megarhynchus represents a new type in Acanthocephala. Moreover, the mitogenomic phylogenetic results based on concatenated amino acid sequences of 12 protein-coding genes strongly supported the validity of the Heteracanthocephalidae and suggested close affinity between the Heteracanthocephalidae and Echinorhynchidae in the order Echinorhynchida.","PeriodicalId":19796,"journal":{"name":"Parasite","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11460826/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142392265","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

Molecular characterization of common zoonotic protozoan parasites and bacteria causing diarrhea in dairy calves in Ningxia Hui Autonomous Region, China. 导致中国宁夏回族自治区奶牛犊牛腹泻的常见人畜共患病原生动物寄生虫和细菌的分子特征。

IF 2.3 2区医学

Parasite Pub Date : 2024-01-01 Epub Date: 2024-10-01 DOI: 10.1051/parasite/2024059

Jia-Qi Zhao, Ying-Ying Fan, Yun-Duan Lei, Ding Liu, Jun-Wei Wang, Xin Yang, Jun-Ke Song, Guang-Hui Zhao

{"title":"Molecular characterization of common zoonotic protozoan parasites and bacteria causing diarrhea in dairy calves in Ningxia Hui Autonomous Region, China.","authors":"Jia-Qi Zhao, Ying-Ying Fan, Yun-Duan Lei, Ding Liu, Jun-Wei Wang, Xin Yang, Jun-Ke Song, Guang-Hui Zhao","doi":"10.1051/parasite/2024059","DOIUrl":"10.1051/parasite/2024059","url":null,"abstract":"Diarrhea caused by zoonotic pathogens is one of the most common diseases in dairy calves, threatening the health of young animals. Humans are also at risk, in particular children. To explore the pathogens causing diarrhea in dairy calves, the present study applied PCR-based sequencing tools to investigate the occurrence and molecular characteristics of three parasites (Cryptosporidium spp., Giardia duodenalis, and Enterocytozoon bieneusi) and three bacterial pathogens (Escherichia coli, Clostridium perfringens, and Salmonella spp.) in 343 fecal samples of diarrheic dairy calves from five farms in Lingwu County, Ningxia Hui Autonomous Region, China. The total positive rate of these pathogens in diarrheic dairy calves was 91.0% (312/343; 95% CI, 87.9-94.0), with C. perfringens (61.5%, 211/343; 95% CI, 56.3-66.7) being the dominant one. Co-infection with two to five pathogens was found in 67.3% (231/343; 95% CI, 62.4-72.3) of investigated samples. There were significant differences (p < 0.05) in the positive rates of Cryptosporidium spp. and diarrheagenic E. coli among farms, age groups, and seasons. Two Cryptosporidium species (C. parvum and C. bovis) and five gp60 subtypes of C. parvum (IIdA15G1, IIdA20G1, IIdA19G1, IIdA14G1, and a novel IIdA13G1) were identified. Two assemblages (assemblage E and zoonotic assemblage A) of G. duodenalis and six ITS genotypes of E. bieneusi (J, Henan-IV, EbpC, I, EbpA, and ESH-01) were observed. Four virulence genes (eaeA, stx1, stx2, and st) of diarrheagenic E. coli and one toxin type (type A) of C. perfringens were detected. Our study enriches our knowledge on the characteristics and zoonotic potential of diarrhea-related pathogens in dairy calves.","PeriodicalId":19796,"journal":{"name":"Parasite","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11444552/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142366105","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

Evaluation of the epidemiological situation of intestinal schistosomiasis using the POC-CCA parasite antigen test and the Kato-Katz egg count test in school-age children in endemic villages in western Côte d'Ivoire. 使用 POC-CCA 寄生虫抗原检测法和 Kato-Katz 卵数检测法对科特迪瓦西部流行村落学龄儿童的肠血吸虫病流行情况进行评估。

IF 2.3 2区医学

Parasite Pub Date : 2024-01-01 Epub Date: 2024-10-29 DOI: 10.1051/parasite/2024049

Edwige A Sokouri, Bernardin Ahouty, Innocent A Abé, Flora G D Yao, Thomas K Konan, Oscar A Nyangiri, Annette MacLeod, Enock Matovu, Harry Noyes, Mathurin Koffi

{"title":"Evaluation of the epidemiological situation of intestinal schistosomiasis using the POC-CCA parasite antigen test and the Kato-Katz egg count test in school-age children in endemic villages in western Côte d'Ivoire.","authors":"Edwige A Sokouri, Bernardin Ahouty, Innocent A Abé, Flora G D Yao, Thomas K Konan, Oscar A Nyangiri, Annette MacLeod, Enock Matovu, Harry Noyes, Mathurin Koffi","doi":"10.1051/parasite/2024049","DOIUrl":"10.1051/parasite/2024049","url":null,"abstract":"Schistosomiasis is an endemic disease in Côte d'Ivoire. We compared the conventional Kato Katz (KK) test and a more sensitive but rarely used method, the point-of-care circulating cathodic antigen (POC-CCA), in order to contribute to the development of a more appropriate strategy for the control and elimination of intestinal schistosomiasis in western Côte d'Ivoire. A cross-sectional epidemiological survey was conducted in eight elementary schools in the Guémon and Cavally regions from February to December 2020. Selected schoolchildren provided stool and urine samples to detect the presence of Schistosoma mansoni eggs and parasite antigen using the KK and POC-CCA tests, respectively. A total of 554 schoolchildren were included in the study. The overall prevalence of intestinal schistosomiasis was 10% and 67% for KK and POC-CCA, respectively. The POC-CCA detected an infection rate of 100%, while the KK yielded a rate of 42%. In schools, prevalence ranged from 27 to 100% with POC-CCA and from 0 to 42% with KK. Swimming, fishing, washing clothes, and dishwashing were significantly associated with the onset of infection and high intensities. The epidemiological risk factors for intestinal schistosomiasis updated here using KK and POC-CCA diagnostic methods showed that prevalence was much higher than previously estimated using the KK. The POC-CCA is more sensitive and ways should be considered to improve its specificity in order to improve the diagnosis.","PeriodicalId":19796,"journal":{"name":"Parasite","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11520599/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142522640","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":null,"pages":null},"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":null,"pages":null},"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

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":null,"pages":null},"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

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":null,"pages":null},"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

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":null,"pages":null},"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}

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