Parasitology International最新文献

{"title":"Phylogenetic analysis of Ellipsomyxa species (Myxosporea) and description of Ellipsomyxa gordeyi n. sp. from the gall bladder of mullets (Mugiliformes: Mugilidae) in Nha Trang Bay of the East Sea, Vietnam","authors":"Violetta M. Yurakhno ,&nbsp;Vo Thi Ha ,&nbsp;Christopher M. Whipps","doi":"10.1016/j.parint.2024.102918","DOIUrl":"10.1016/j.parint.2024.102918","url":null,"abstract":"<div><p>The coastal waters of Vietnam are home to a wide diversity of fishes, but the parasite diversity of these potential hosts is much less well characterized. To begin addressing this knowledge gap, we carried out surveys of myxozoan parasites in fishes collected from Nha Trang Bay in Vietnam's East Sea in 2018–2019. Mugilid fishes were collected in March–April 2018, January–February 2019, and November–December 2019, and examined for myxozoans. Myxospores consistent with those of the genus <em>Ellipsomyxa</em> were found in the gall bladder of four mullet species, and we thoroughly characterized those from <em>Planiliza melinoptera</em>. Myxospores were elliptoid and devoid of striation, with a distinct sinuous suture line. Polar capsules were pyriform and oriented toward the poles of the spore. Morphological features were compared to nominal species and this species from Vietnam was distinct. Phylogenetic analysis based on partial small subunit rDNA sequence revealed that broadly, <em>Ellipsomyxa</em> species split into three phylogenetic lineages, and although in some branches there are groupings by host family, habitat or locality, there are no clear phylogenetic patterns. The new species we encountered in <em>P. melinoptera</em> had a close sister relationship with <em>Ellipsomyxa adlardi</em>, with both species part of a larger subclade within the <em>Ellipsomyxa</em> lineage. Despite this phylogenetic similarity, these species were morphologically distinct, and partial large subunit DNA sequences were only 93% similar to each other. A combination of the morphological characteristics and molecular data suggest that this is an undescribed species and we propose the name <em>Ellipsomyxa gordeyi</em> n. sp.</p></div>","PeriodicalId":19983,"journal":{"name":"Parasitology International","volume":"102 ","pages":"Article 102918"},"PeriodicalIF":1.5,"publicationDate":"2024-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141470059","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Proterodiplostomid no longer: Molecular phylogeny reveals the true position of Proalarioides (Digenea: Diplostomoidea)","authors":"Tyler J. Achatz ,&nbsp;Sherin Chacko ,&nbsp;Puthanpurayil K. Prasadan ,&nbsp;Vasyl V. Tkach","doi":"10.1016/j.parint.2024.102917","DOIUrl":"10.1016/j.parint.2024.102917","url":null,"abstract":"<div><p><em>Proalarioides</em> Yamaguti, 1933 (Digenea Carus, 1863: Diplostomoidea Poirier, 1886) is a small genus of proterodiplostomids parasitic in the intestines of snakes in Asia. Only two species are considered valid: <em>Proalarioides serpentis</em> Yamaguti, 1933 and <em>Proalarioides tropidonotis</em> Vidyarthi, 1937. Unlike other proterodiplostomids, <em>Proalarioides</em> spp. possess pseudosuckers and lack the paraprostate, otherwise extremely characteristic of the Proterodiplostomidae Dubois, 1936. In the present study, we describe the morphology of progenetic metacercariae of a <em>Proalarioides</em> sp. from bicolored frog, <em>Clinotarsus curtipes</em> (Jerdon), collected in India and provide the first DNA sequences from any member of the genus. These specimens differ from previously described metacercariae and adults of <em>P. serpentis</em> and <em>P. tropidonotis</em> in several ways, including body and organ sizes, sucker ratios, and distribution of vitellarium. The newly generated partial large ribosomal subunit (28S) rRNA gene sequence was used to test the phylogenetic position of the genus among other major lineages of diplostomoideans. Our 28S phylogeny clearly demonstrated <em>Proalarioides</em> sp. to be well-separated from other members of the Proterodiplostomidae. Based on morphological and molecular evidence, we transfer <em>Proalarioides</em> out of the Proterodiplostomidae into the Diplostomidae Poirier, 1886.</p></div>","PeriodicalId":19983,"journal":{"name":"Parasitology International","volume":"102 ","pages":"Article 102917"},"PeriodicalIF":1.5,"publicationDate":"2024-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141470060","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Tapeworms (Cestoda: Proteocephalidae) of the gars (Lepisosteidae), living fossils in America, including proposal of a new genus and a new species","authors":"Tomáš Scholz ,&nbsp;Alain de Chambrier ,&nbsp;Jiří Kyslík","doi":"10.1016/j.parint.2024.102916","DOIUrl":"10.1016/j.parint.2024.102916","url":null,"abstract":"<div><p>A new genus, <em>Cordicestus</em>, is proposed to accommodate proteocephalid tapeworms parasitising gars (Lepisosteiformes: Lepisosteidae) in North and Central America that were previously placed in the polyphyletic genus <em>Proteocephalus</em> Weinland, 1858. The new genus differs from other proteocephalid genera by the particular morphology of the scolex, which is small, protrudes apically but has no apical organ, and bears flat, heart-shaped (= <em>cordis</em>) suckers. In addition, the species of the new genus have an elongated cirrus sac with an almost straight internal vas deferens and wide, sinuous ventral osmoregulatory canals with secondary canals directed outwards. The type species of the new genus, <em>Cordicestus singularis</em> (La Rue, 1911) n. comb., is redescribed based on new material from the shortnose gar, <em>Lepisosteus platostomus</em> Rafinesque (type host), and the spotted gar, <em>L. oculatus</em> Winchell, in the United States. <em>Cordicestus rafaeli</em> n. sp. is described from the tropical gar, <em>Atractosteus tropicus</em> Gill, in Mexico. The new species differs from its relatives primarily by the presence of craspedote proglottids (acraspedote in other species) and some biometric features. All species of <em>Cordicestus</em> are revised, including unidentified specimens from <em>A. tropicus</em> and the Cuban gar <em>A. tristoechus</em> (Bloch and Schneider) in Nicaragua and Cuba, respectively, which may be new species, and a key to the identification of these taxa is provided. Molecular data available for two nominal species of the new genus indicate the possible existence of another species of <em>Cordicestus</em> in <em>Lepisosteus</em> in the USA.</p></div>","PeriodicalId":19983,"journal":{"name":"Parasitology International","volume":"102 ","pages":"Article 102916"},"PeriodicalIF":1.5,"publicationDate":"2024-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141470061","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Molecular prevalence and genotypic diversity of Theileria equi and Babesia caballi infecting horses in Kyrgyzstan","authors":"Berdikulov Atabek ,&nbsp;Atambekova Zhyldyz ,&nbsp;Kamarli Aitakin ,&nbsp;Nurgaziev Rysbek ,&nbsp;Orozov Jailobek ,&nbsp;Believe Ahedor ,&nbsp;Ngigi Noel Muthoni Mumbi ,&nbsp;Yihong Ma ,&nbsp;Davaajav Otgonsuren ,&nbsp;Wettam Perumage Pavithra Sandamali Indrasiri Perera ,&nbsp;Azirwan Guswanto ,&nbsp;Thillaiampalam Sivakumar ,&nbsp;Naoaki Yokoyama","doi":"10.1016/j.parint.2024.102915","DOIUrl":"10.1016/j.parint.2024.102915","url":null,"abstract":"<div><p>Equine piroplasmosis is caused by <em>Theileria equi</em> and <em>Babesia caballi</em>, which are hemoprotozoan parasites. Understanding the epidemiology and genotypes of <em>T. equi</em> and <em>B. caballi</em> is crucial for developing effective control strategies in endemic countries. However, the endemic status of these two parasite species remains uncertain in Kyrgyzstan due to lack of surveys. Our study, therefore, aimed to detect <em>T. equi</em> and <em>B. caballi</em> infections in Kyrgyzstan and identify their genotypes. Blood samples were collected from 226 horses across all seven provinces of Kyrgyzstan, namely Chuy, Issyk-Kul, Naryn, Talas, Jalal-Abad, Osh, and Batken. These blood samples were subjected to DNA extraction, followed by specific PCR assays targeting <em>T. equi</em> and <em>B. caballi</em>. We found that 56 (24.8%, confidence interval (CI): 19.6–30.8%) and 7 (3.1%, CI: 1.5–6.3%) of the tested horses were positive for <em>T. equi</em> and <em>B. caballi</em> infections, respectively. <em>Theileria equi</em> was detected in all surveyed provinces, whereas <em>B. caballi</em> was found in five provinces, except for Talas and Osh. Subsequent genotype-specific PCR assays showed that <em>T. equi</em>-positive horses harbored all five genotypes: A, B, C (also known as <em>Theileria haneyi</em>), D, and E. On the other hand, phylogenetic analysis of <em>B. caballi rap-1</em> sequences detected the genotypes A and B1. The prevalence of <em>T. equi</em> and <em>B. caballi</em> suggests a potential risk of clinical equine piroplasmosis among horses in Kyrgyzstan, and the observed genotypic diversity underscores the challenges in managing the disease. Our findings emphasize the need for comprehensive control measures to effectively address equine piroplasmosis in Kyrgyzstan.</p></div>","PeriodicalId":19983,"journal":{"name":"Parasitology International","volume":"102 ","pages":"Article 102915"},"PeriodicalIF":1.5,"publicationDate":"2024-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141446716","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Patterns in parasite diversity and interactions with anurans from the Atlantic Forest","authors":"Rafael Euclydes,&nbsp;Karla Magalhães Campião","doi":"10.1016/j.parint.2024.102914","DOIUrl":"10.1016/j.parint.2024.102914","url":null,"abstract":"<div><p>Knowledge of parasite-host interactions is essential for understanding factors associated with the ecology and evolution of both groups. Some aspects, such as host size and phylogeny, as well as parasite specificity, are significant predictors that help unveil the parasite-host relationship. Thus, the goals of this study were: (1) to describe parasite diversity in regions of the Atlantic Forest; (2) to analyze which host characteristics can influence parasite richness of anuran's parasite component community; and (3) to investigate if the prevalence of parasite infection is related to specificity metrics (ecological and phylogenetic), number of infected hosts and parasite's abundance. We identified 49 parasite taxa, classified into three phyla: Nematoda, Acanthocephala, and Platyhelminthes. Supporting the existing literature, our findings corroborate the positive relationship between host size and parasite richness, further emphasizing the significance of this predictor. Parasite prevalence in the host community is related to the number of infected host species and parasite abundance, but not to phylogenetic and ecological specificity indices. This shows that parasite prevalence is strongly associated with infection opportunity, host sampling effort, and high parasite abundance.</p></div>","PeriodicalId":19983,"journal":{"name":"Parasitology International","volume":"102 ","pages":"Article 102914"},"PeriodicalIF":1.5,"publicationDate":"2024-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141440782","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Inter-annual and seasonal variations of the metazoan parasite communities of the blue sea catfish Ariopsis guatemalensis (Siluriformes: Ariidae), in a tropical coastal lagoon","authors":"Dolores I. Carpio-Hernández ,&nbsp;Juan Violante-González ,&nbsp;Scott Monks ,&nbsp;Nataly G. Santos-Bustos ,&nbsp;Edgar F. Mendoza-Franco ,&nbsp;Shirley S. Salas-Villalobos ,&nbsp;Aldo Díaz-Gallegos ,&nbsp;Yesenia Gallegos-Navarro ,&nbsp;Princessa J. Villalba-Vasquez","doi":"10.1016/j.parint.2024.102911","DOIUrl":"10.1016/j.parint.2024.102911","url":null,"abstract":"<div><p>Parasitological studies of long-term inter-annual variations provide more precise and reliable information about the biological structure of fish parasite communities, and constitute a reference data base for future studies. A total of 1103 blue sea catfish <em>Ariopsis guatemalensis</em> from a tropical eutrophic coastal lagoon were examined for parasites over a 22-year period (from May 2000 to October 2022), to test the hypothesis that parasite communities of this host, should exhibit greater variations in their structure and species composition mainly over long-term periods. Three species of monoxenous (single-host life cycle), and nine of heteroxenous (multi-host life cycle) parasites were identified. The results indicated that parasite species composition of this catfish has remained stable over a 22-years period. However, the community structure has registered notable changes over periods of several years, mainly due to the replacement of the numerically dominant species. Temporal variations in the infection dynamics of component parasite species, were possibly caused by a combination of biotic and abiotic factors, influenced by the seasonal dry/rainy cycle, which can affect the availability of intermediate host populations, as well as the feeding and reproductive behavior of the host.</p></div>","PeriodicalId":19983,"journal":{"name":"Parasitology International","volume":"102 ","pages":"Article 102911"},"PeriodicalIF":1.9,"publicationDate":"2024-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141427376","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"New host record of Thelazia callipaeda (Nematoda: Spirurida) with a notably wide host range and shared zoonotic lineage in Japan","authors":"Ayaka Kitajima ,&nbsp;Toshihiro Tokiwa ,&nbsp;Kandai Doi ,&nbsp;Kaito Kotani ,&nbsp;Hiroko Otsubo ,&nbsp;Chinatsu Kamei ,&nbsp;Hiromitsu Hitani ,&nbsp;Toshiaki Yamamoto ,&nbsp;Takuya Kato","doi":"10.1016/j.parint.2024.102913","DOIUrl":"10.1016/j.parint.2024.102913","url":null,"abstract":"<div><p><em>Thelazia callipaeda</em> (Nematoda: Spirurida: Thelaziidae) parasitizes the eyes of dogs, cats, humans, and various wild mammals, and is transmitted by drosophilid flies. In Japan, <em>T. callipaeda</em> is considered an emerging parasite that has expanded its endemic region northward. However, reports of its detection in mammals other than domestic animals and humans are scarce. This study reports the detection of <em>T. callipaeda</em> in Japanese red fox (<em>Vulpes vulpes japonica</em>), masked palm civet (<em>Paguma larvata</em>)<em>,</em> Japanese badger (<em>Meles anakuma</em>), Japanese black bear (<em>Ursus thibetanus japonicus</em>)<em>,</em> raccoon (<em>Procyon lotor</em>)<em>,</em> Japanese raccoon dog (<em>Nyctereutes viverrinus</em>), domestic dog (<em>Canis lupus familiaris</em>), domestic cat (<em>Felis silvestris catus</em>), and human. Of these, the Japanese red fox, masked palm civet, Japanese badger, and Japanese black bear have been reported as novel host records. Sequence analysis of the cytochrome <em>c</em> oxidase subunit I gene of <em>T. callipaeda</em> revealed two unique lineages specific to Japan, with no regional or host species differences. These results suggest a wide host range for <em>T. callipaeda,</em> highlighting the significant role of wildlife as a reservoir for this parasite in Japan.</p></div>","PeriodicalId":19983,"journal":{"name":"Parasitology International","volume":"102 ","pages":"Article 102913"},"PeriodicalIF":1.5,"publicationDate":"2024-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141413456","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Babesia bigemina (smith and Kilbourne, 1893) detection in Amblyomma sculptum (Berlese, 1888) ticks in the Mato Grosso do Sul state, Brazil.","authors":"Joelly Corrêa dos Santos ,&nbsp;Marcos Valerio Garcia ,&nbsp;Pâmella Oliveira Duarte ,&nbsp;Leandra Marla Oshiro ,&nbsp;Fernando Ibanez Martins ,&nbsp;Leandro de Oliveira Souza Higa ,&nbsp;Álvaro Aragão de Lima ,&nbsp;Renato Andreotti","doi":"10.1016/j.parint.2024.102912","DOIUrl":"10.1016/j.parint.2024.102912","url":null,"abstract":"<div><p>Ticks parasitize various hosts, including humans, and are known to transmit pathogens that can be harmful not only to animals but also to humans. To evaluate the possible presence of pathogens in ticks, we aimed to collect and identify tick fauna specimens in Lagoa Comprida Municipal Natural Park, an anthropogenic urban area located in Aquidauana, Mato Grosso do Sul, Brazil. A total of 1216 ticks, of which 51.2% were <em>Amblyomma sculptum</em>, 1.2% were <em>Amblyomma dubitatum</em>, and 41% were <em>Amblyomma</em> spp. were collected. These results show that the prevalence of <em>A. sculptum</em> is significantly higher than that of <em>A. dubitatum</em> across all four seasons. Molecular analyses revealed positive samples for the genus <em>Babesia</em>, including the confirmation of <em>Babesia bigemina</em> in an <em>A. sculptum</em> specimen, marking the first record of this relationship. This unexpected finding demands greater attention and deeper analysis in the context of the epidemiology of tick-borne diseases.</p></div>","PeriodicalId":19983,"journal":{"name":"Parasitology International","volume":"102 ","pages":"Article 102912"},"PeriodicalIF":1.9,"publicationDate":"2024-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141296525","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Morphological and molecular identification of Sarcocystis falcatula from the emerald toucanet (Aulacorhynchus albivitta) in Colombia","authors":"Alejandra Marin-Zapata,&nbsp;Santiago Duque-Arias,&nbsp;Cristina Úsuga-Monroy,&nbsp;Horwald A.B. Llano","doi":"10.1016/j.parint.2024.102910","DOIUrl":"10.1016/j.parint.2024.102910","url":null,"abstract":"<div><p><em>Sarcocystis</em> spp. are cyst-forming coccidia characterized by a two-host predator-prey life cycle. Sarcocysts are formed in muscles or nervous system of the intermediate host, while sporocysts develop in the small intestine of the definitive host. The intermediate hosts of <em>Sarcocystis falcatula</em> are wild birds. Colombia is one of the countries with the greatest biodiversity of birds, however, there are few studies related to this parasite in wild birds. This study presents the morphological and molecular detection of <em>Sarcocystis falcatula</em> collected from the emerald toucanet (<em>Aulacorhynchus albivitta</em>), a wild bird species endemic to South America. Pectoral muscle samples were obtained, and microscopic and molecular detection was performed by light microscopy, transmission electron microscopy, and amplifying of the first internal transcribed spacer (ITS-1) and surface antigen-encoding genes (SAGs). <em>Sarcocystis</em> measured an average of 161  × 42 μm, with a cyst wall ∼0.4 μm thick. Ultrastructurally, the sarcocyst wall type 11b-like consisted of numerous villar protrusions of 850 nm wide on average. The ITS-1 sequence showed 97.0–99.7% identity to <em>S. falcatula</em> previously described from birds in the United States and Brazil, respectively. Concatenated phylogenetic analysis based on SAG2, SAG3 and SAG4 confirmed that the new isolate is grouped with other sequences of <em>Sarcocystis</em> from South America, but divergent from those isolates obtained in North America. The results of this study demonstrate for the first time the presence of <em>S. falcatula</em> in a wild bird from Colombia.</p></div>","PeriodicalId":19983,"journal":{"name":"Parasitology International","volume":"102 ","pages":"Article 102910"},"PeriodicalIF":1.9,"publicationDate":"2024-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141199355","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The prevalence and genotypes of Cryptosporidium spp. in bar-headed goose (Anser indicus) in China","authors":"Nian-Yu Xue ,&nbsp;Si-Yuan Qin ,&nbsp;Ya Qin ,&nbsp;Hai-Tao Wang ,&nbsp;Qing-Yu Hou ,&nbsp;Xing Yang ,&nbsp;Jing Jiang ,&nbsp;Hong-Bo Ni","doi":"10.1016/j.parint.2024.102902","DOIUrl":"10.1016/j.parint.2024.102902","url":null,"abstract":"<div><p><em>Cryptosporidium</em> spp. is an important foodborne and waterborne pathogen in humans and animals, causing diarrhoea in humans and respiratory and gastrointestinal diseases in birds. However, reports of <em>Cryptosporidium</em> infection in bar–headed goose are limited. To determine the infection rate and species/genotypes of <em>Cryptosporidium</em> in bar–headed goose in China, a total of 358 fecal samples were collected from 3 regions. Nested PCR was used to amplify <em>Cryptosporidium</em> SSU rRNA regions from the fecal extracted–DNA samples. The total infection rate of <em>Cryptosporidium</em> in bar–headed in China was 3.9 % (14/358), with 4.2 % (5/120) in Aba (Ngawa) Tibetan and Qiang Autonomous Prefect, Sichuan province, 7.6 % (9/119) in Maqu county, Gansu province, and 0.0 % (0/119) in Caohai, Wei ning county, Guizhou province. The differences in prevalence rate by region were statistically significant. All positive samples were identified as <em>Cryptosporidium</em> goose genotype I (<em>n</em> = 14). This is the first systematic investigation of the epidemiological status and dominant species/genotypes of <em>Cryptosporidium</em> in bar–headed goose in China, thereby enhancing our understanding of the epidemiology of <em>Cryptosporidium</em> infection in wild migratory birds.</p></div>","PeriodicalId":19983,"journal":{"name":"Parasitology International","volume":"102 ","pages":"Article 102902"},"PeriodicalIF":1.9,"publicationDate":"2024-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140958760","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}