Folia Parasitologica最新文献

{"title":"Description of Ophthalmonema diodontis gen. et sp. n. (Nematoda: Cystidicolidae), a parasite of the eye and surrouding tissues of porcupinefishes (Diodon spp.), with a key to cystidicolid genera.","authors":"Frantisek Moravec, Craig A Pelton, Heather D S Walden","doi":"10.14411/fp.2026.002","DOIUrl":"https://doi.org/10.14411/fp.2026.002","url":null,"abstract":"<p><p>A new nematode genus and species, Ophthalmonema diodontis gen. et sp. n. (Cystidicolidae), are established based on female specimens (males remain unknown) collected from both eyes of an aquarium-kept spot-fin porcupinefish, Diodon hystrix Linnaeus (Diodontidae, Tetraodontiformes), originally caught in coastal waters off Florida, USA. Examination by light (LM) and scanning electron microscopy (SEM) revealed that the mouth structure of this nematode, particularly the presence of two conspicuously large, rounded, opposing dorsoventral plates, each connected by a narrow bridge to the inner end of the pseudolabium, is unique among all cystidicolid genera. Inadequately described cystidicolid nematodes previously reported from the eye and surrounding tissues of D. hystrix and Diodon nicthemerus Cuvier in the Caribbean Sea and in waters off southern Australia, respectively, as Metabronema sp. or Cystidicolidae gen. sp. are considered to belong to the new species O. diodontis. A key to cystidicolid genera is provided.</p>","PeriodicalId":55154,"journal":{"name":"Folia Parasitologica","volume":"73 ","pages":""},"PeriodicalIF":1.6,"publicationDate":"2026-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147789579","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":"Three decades of research on molecular genetic characteristics of Echinococcus spp.: a bibliometric study.","authors":"Aidana Tautanova, Vladimir Kiyan, Marat Dusmagambetov, Tanzilya Almysheva, Aigul Dusmagambetova","doi":"10.14411/fp.2026.001","DOIUrl":"https://doi.org/10.14411/fp.2026.001","url":null,"abstract":"<p><p>Research on the molecular genetics of Echinococcus has advanced significantly owing to its relevance in understanding genetic variation, host-parasite interactions, and the transmission of Echinococcus species. A bibliometric analysis was performed using RStudio (Bibliometrix) and VOSviewer to evaluate molecular genetic research on Echinococcus spp. published between 1985 and 2025. Data were extracted from Scopus, Web of Science, PubMed, Europe PMC, and ProQuest. The analysis revealed a steady rise in publications on Echinococcus molecular genetics, accelerating from the early 2000s and peaking around 2017, with a slight decline after 2023, reflecting fluctuations in research activity. Comparative analysis showed Echinococcus consistently surpassed Schistosoma, Taenia, and soil-transmitted helminths, peaking at 60 articles in 2020-2021. Early publications achieved high mean Total Citations (TC) per year, followed by a stable trend, indicating lasting impact. Leading journals included Parasitology Research (Germany; 70 articles, H-index 114), Veterinary Parasitology (Netherlands; 62, H-index 150), Parasitology (UK; 53, H-index 173), Acta Tropica (Netherlands; 34, H-index 122), and PLOS Neglected Tropical Diseases (USA; 28, H-index 172). Tehran University of Medical Sciences (54 articles) led institutions. Influential authors included D. P. McManus and T. Romig. Multinational studies (484 publications) had higher citations than single-country (474). Iran (121), China (116), and Italy (53) led global contributions, emphasising collaboration, genotyping, phylogeny, and veterinary applications. This bibliometric study underscores the evolving trends in Echinococcus molecular genetics, providing valuable insights for researchers and stakeholders to guide future investigations and collaborative strategies in controlling echinococcosis.</p>","PeriodicalId":55154,"journal":{"name":"Folia Parasitologica","volume":"73 ","pages":""},"PeriodicalIF":1.6,"publicationDate":"2026-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147789635","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":"Diversity and community structure of ectoparasites infecting some elasmobranch species off the Tunisian coast.","authors":"Feriel Youssef, Bouchra Benmansour, Lassaad Mchiri, Lamjed Mansour","doi":"10.14411/fp.2025.032","DOIUrl":"https://doi.org/10.14411/fp.2025.032","url":null,"abstract":"<p><p>With more than 62 reported species, Tunisia has a rich diversity of elasmobranchs. However, investigations of their parasites in Tunisian waters remain rare and fragmented. With the global biodiversity crisis that most living species are facing, the study of parasite diversity is crucial for assessing ecosystem health and host-parasite interactions. In this study, 2,092 specimens of cartilaginous fishes (Chondrichthyes: Elasmobranchii) belonging to eight species, six genera and five families were sampled along the Tunisian coast and examined for their ectoparasites. The different host species were each infected by at least one ectoparasite species. A total of 24 ectoparasite species, among which three new species, were collected and identified. Copepods exhibited the highest taxonomic diversity (11 species), followed by 'monogeneans' (6 species), isopods (5 species), and leeches (2 species). To understand the diversification and specialisation of the collected ectoparasite species and the factors that may influence them, parasitological indices, parasitic communities' composition, parasitic richness and seasonal variation are presented in this work. Parasite community structure varied among host species and families. Mustelus mustelus (Linnaeus) showed the greatest diversity (Shannon-Wiener H' = 1.91; Species richness (SR) = 10), whereas Torpedo torpedo (Linnaeus) hosted only a single leech species. The present study demonstrates that parasite community composition and structure of the studied hosts seem to be influenced primarily by the geographic distribution, the sampling effort and the population density, along with other factors such as the phylogeny of the host species.</p>","PeriodicalId":55154,"journal":{"name":"Folia Parasitologica","volume":"72 ","pages":""},"PeriodicalIF":1.6,"publicationDate":"2025-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145866428","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":"Harmless parasites? Infections with Hemolivia mauritanica (Apicomplexa: Adeleorina: Karyolysidae) and Haemocystidium spp. (Apicomplexa: Haemosporida: Haemoproteidae) have a negligible impact on white cell counts in tortoise hosts.","authors":"Zaneta Zivcicova, Jan Skrabal, Pavlina Hajkova, David Jandzik, Hossein Javanbakht, Peter Mikulicek, Pavel Siroky","doi":"10.14411/fp.2025.031","DOIUrl":"https://doi.org/10.14411/fp.2025.031","url":null,"abstract":"<p><p>The pathogenicity of haemogregarines and their effects on the health status of ectothermic hosts remain largely unexplored. In this study, we examined the impact of Hemolivia mauritanica (Sergent et Sergent, 1904) infection on the differential leukocyte count (DLC) as a measurable indicator of health in tortoise hosts. A total of 206 blood smears were analysed, including 181 from spur-thighed tortoises (Testudo graeca Linnaeus) and 25 from marginated tortoises (Testudo marginata Schoepff). Light microscopy was used to identify infected individuals, determine DLC, and quantify parasitaemia levels. Overall, H. mauritanica was detected in 125 of 181 (69%) T. graeca samples and 21 of 25 (84%) T. marginata samples. To assess whether infection influenced DLC, we statistically compared leukocyte profiles between infected and uninfected individuals. Additionally, we evaluated the effects of other factors, including host species, parasitaemia intensity, sex, age, and the month and year of blood collection. Wilcoxon rank-sum tests revealed that parasitaemia and age had a statistically significant effect on DLC in T. graeca. Further analysis using linear models showed a significant association between parasitaemia and DLC, specifically affecting azurophils in T. graeca and basophils in T. marginata. Nine T. graeca tortoises positive for H. mauritanica were co-infected with haemosporidian parasites of the genus Haemocystidium Castellani et Willey, 1904, specifically three with Haemocystidium anatolicum (Orkun et Güven, 2013) and six with Haemocystidium caucasicum (Krasilnikov, 1965). Although co-infection itself was not statistically significant, a separate analysis of Haemocystidium parasitaemia revealed a significant effect on lymphocyte DLC. Furthermore, the frequent presence of mitotic and polychromatophilous erythrocytes in H. mauritanica-infected tortoises suggests a potential increase in erythrocyte regeneration.</p>","PeriodicalId":55154,"journal":{"name":"Folia Parasitologica","volume":"72 ","pages":""},"PeriodicalIF":1.6,"publicationDate":"2025-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145758253","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":"Thorny-headed worms (Acanthocephala) of the Patagonian blennie Eleginops maclovinus (Cuvier) from northern Patagonia, Argentina.","authors":"Maite Aneley Barrena, Jesus Servando Hernandez-Orts","doi":"10.14411/fp.2025.030","DOIUrl":"https://doi.org/10.14411/fp.2025.030","url":null,"abstract":"<p><p>We report the fauna of the Acanthocephala of 120 Patagonian blennies Eleginops maclovinus (Cuvier) from northern Patagonia, Argentina. A total of 535 acanthocephalans belonging to five species were collected and identified using light microscopy. Juvenile and adult forms were only observed for Hypoechinorhynchus magellanicus Szidat, 1950 (Arhythmacanthidae). Juvenile forms of Corynosoma australe Johnston, 1937, Corynosoma cetaceum Johnston et Best, 1942 and Corynosoma shackletoni Zdzitowiecki, 1978 (Polymorphidae) were found encapsulated in the mesenteries. Juveniles of Profilicollis chasmagnathi (Holcman-Spector, Mañé-Garzón et Dei-Cas, 1977) (Polymorphidae) were found free in the intestines of the fish. Hypoechinorhynchus magellanicus was the most abundant acanthocephalan in our study, accounting for 48.4% of all specimens collected, followed by C. australe (33.5%). The Patagonian blennie represents a new host record for four species (C. australe, C. cetaceum, C. shackletoni and P. chasmagnathi). The northern Patagonia in Argentina is a novel locality record for C. shackletoni. This survey improves our knowledge of life cycles and geographical distribution of zoonotic marine acanthocephalans with potential risk to humans and companion animals.</p>","PeriodicalId":55154,"journal":{"name":"Folia Parasitologica","volume":"72 ","pages":""},"PeriodicalIF":1.6,"publicationDate":"2025-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145566203","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":"First genetic characterisation and phylogenetic analysis of Trichomonadida from Gallus gallus domesticus (Aves: Phasianidae) and its nematode parasite Heterakis gallinarum (Ascaridida: Heterakidae) in Tunisia.","authors":"Sarra Farjallah, Paolo Merella, Abdulaziz Nasser Alagaili, Nabil Amor","doi":"10.14411/fp.2025.029","DOIUrl":"https://doi.org/10.14411/fp.2025.029","url":null,"abstract":"<p><p>Flagellated protozoa of the order Trichomonadida infect a variety of vertebrates, including poultry such as Gallus gallus domesticus (Linnaeus). Several trichomonad pathogens are of significant veterinary importance due to their role in diseases that cause high mortality rates in chickens. Despite the importance of Trichomonadida in poultry health, molecular studies on these protozoa in North Africa are limited. This study addresses this gap by investigating the genetic diversity and evolutionary relationships of Trichomonadida isolated from G. gallus domesticus and its nematode parasite Heterakis gallinarum (Schrank, 1788) in Tunisia, using a multilocus molecular approach with 18S rRNA and α-actinin 1 genes. Based on both markers, all Tunisian haplotypes, which clustered with those from France, were found to belong to genotype2. 18S rRNA analysis revealed the existence of protozoans such as Histomonas meleagridis (Smith, 1895) and Parahistomonas wenrichi Lund, 1963 in coinfection with H. gallinarum, confirming a possible mixed infection. Additionally, when analysing caecal samples, other Trichomonadida species were identified, including Simplicimonas sp. and Tetratrichomonas gallinarum (Martin et Robertson, 1911). These findings suggest a complex protozoan community within the studied hosts. Phylogenetic analysis revealed a close relationship between H. meleagridis and P. wenrichi, as well as between Simplicimonas sp. and the Monoceromonas-Tritrichomonas group. Both H. meleagridis genotypes 1 and 2 exhibited a sister-group relationship with P. wenrichi, with strong support for a common evolutionary origin. Tetratrichomonas gallinarum was basal in the tree, suggesting early divergence in the Trichomonadida lineage. This study provides, for the first time, insights into the genetic diversity of trichomonadids in Tunisia. The 18S rDNA locus proved to be effective for assessing the genetic diversity of H. meleagridis, P. wenrichi, T. gallinarum and Simplicimonas sp. and showed a possible mixed infection. The findings provide valuable insights into the genetic characteristics of these parasites in Tunisian poultry farms and contribute to the understanding of Trichomonadida diversity, enhancing disease control and prevention efforts.</p>","PeriodicalId":55154,"journal":{"name":"Folia Parasitologica","volume":"72 ","pages":""},"PeriodicalIF":1.6,"publicationDate":"2025-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145336693","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":"A new species of Pseudoacanthocephalus (Acanthocephala: Pseudoacanthocephalidae) from Sado Island, Japan, with a report of its accidental occurrence in a marine elasmobranch.","authors":"Yuki Kita, Masato Nitta, Harue Abe, Shigen Kaburagi, Takeshi Fujita, Kenji Toyota, Yusuke Kondo, Hiroshi Kajihara","doi":"10.14411/fp.2025.028","DOIUrl":"10.14411/fp.2025.028","url":null,"abstract":"<p><p>Three species of amphibian-parasitic acanthocephalans belonging to the genus Pseudoacanthocephalus Petrochenko, 1958 have been recorded in Japan. However, only a limited number of localities have been surveyed, and the distribution of these congeners across other regions of Japan remains unclear. In this study, acanthocephalans of the genus Pseudoacanthocephalus were recovered from both definitive (Rana ornativentris Werner - type host, and Zhangixalus arboreus [Okada et Kawano]) and accidental hosts (Scyliorhinus torazame [Tanaka]) from Sado Island, Japan. Morphological analyses indicate that those specimens represent a new species, Pseudoacanthocephalus sadoensis sp. n., which may be endemic to the island. Additionally, our report of the incidental occurrence of this species in a marine elasmobranch represents the first documented case of a Pseudoacanthocephalus species found in a marine host.</p>","PeriodicalId":55154,"journal":{"name":"Folia Parasitologica","volume":"72 ","pages":""},"PeriodicalIF":1.6,"publicationDate":"2025-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145071285","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":"Intraspecific variation in the caudal papillae of Raphidascaris mundeswariensis (Nematoda: Raphidascarididae) from gobiiform fishes in eastern India.","authors":"Bhairab Kumar Patra, Anindo Choudhury, Jit Marick, Roshmi Biswas, Anirban Ash","doi":"10.14411/fp.2025.027","DOIUrl":"10.14411/fp.2025.027","url":null,"abstract":"<p><p>The morphological variation of the nematode Raphidascaris mundeswariensis Patra, Choudhury, Thorn et Ash, 2021 in four fish hosts, Apocryptes bato (Hamilton), Glossogobius giuris (Hamilton), Taenioides cirratus (Blyth) and Eleotris lutea (Day), from the Mundeswari River of West Bengal, India, was studied. Partial sequences of the 28S rRNA and COI gene were generated to verify the conspecificity of these isolates while evaluating host-related variation in these samples. Little to no genetic variation was found among isolates from the different hosts and all were identified as R. mundeswariensis. However, subtle differences were found in the morphology among specimens of R. mundeswariensis from the four different hosts, mainly the number of caudal papillae and spicule length. The difference in the nematode morphology from various fish species can be a case of host-induced morphological variation which may enhance the adaptive capabilities of these helminths to parasitise a wide range of hosts. The present study raises questions about the use of the number of caudal papillae as an important taxonomic character in this species and other related nematodes. The results from this study also highlight the importance of examining as many specimens as possible from different hosts in the same localities to cover the range of intraspecific variation.</p>","PeriodicalId":55154,"journal":{"name":"Folia Parasitologica","volume":"72 ","pages":""},"PeriodicalIF":1.6,"publicationDate":"2025-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145071230","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":"Toxoplasma gondii and suicidal behaviour: discovery, cross-diagnostic confirmation and pathway exploration.","authors":"Teodor T Postolache","doi":"10.14411/fp.2025.025","DOIUrl":"10.14411/fp.2025.025","url":null,"abstract":"&lt;p&gt;&lt;p&gt;Our team's discovery of the link between chronic \"latent\" infection with Toxoplasma gondii (Nicolle et Manceaux, 1908) and suicidal behaviour, and our subsequent cross-diagnostic confirmatory work and mechanistic extensions, evolved from our neuroimmunology studies on affective and behavioural dysregulation exacerbated by allergic sensitisation and allergen exposure. Another root was studying behavioural changes and cytokine gene expression in the brain of rodents sensitised and exposed to aeroallergens. We \"piggy-backed\" our project funded to study coupling between aeroallergen sensitisation and exposure in patients with recurrent mood disorders, by measuring Toxoplasma gondii (T. gondii) antibodies in existing samples, and found associations between IgG serointensity and past suicide attempts. Successively, we then reported significant associations between T. gondii seropositivity and/or serointensity and suicidal behaviour in patients with schizophrenia in Germany, recent attempters in Sweden, and longitudinally in a cohort of Danish mothers. In the Danish mothers the exposure to T. gondii preceded self-directed harm and violent suicide attempts; the association was stronger with higher serointensity strata demonstrating a dose-effect. Furthermore, we identified links between T. gondii IgG and suicide endophenotypes of aggression and impulsivity in both individuals with no history of mental illness, and in patients with Intermittent Explosive Disorder (IED). We also found associations between T. gondii and risk factors of suicidal behaviour such as hopelessness and anhedonia in the Amish, depressive symptoms in pregnant women and women Veterans, frailty in older adults, and cognitive deficits in patients with bipolar disorder. Recently, we reported positive associations between T. gondii IgG serointensity with suicidal ideation, impulsivity, depression scores, and daytime dysfunction due to sleep problems in US Veterans who previously attempted suicide. Toxoplasma gondii emerged rather unexpectedly and then took over a considerable proportion of our neuroimmune research portfolio. It satisfied both intellectual appetites, and brought celebrations of discovery, with three systematic reviews and meta-analyses published to date, and a substantial majority of primary articles confirming our initial observations. Toxoplasma gondii also brought considerable frustrations, such as initial grant application setbacks, inability to completely demonstrate causality and, so far, prophylactic and therapeutic impotence for mental health applications in general. While we do not have, as of today, effective and safe treatments for chronic toxoplasmosis with demonstrated mental health benefits in immunocompetent hosts, there are reasons to be optimistic regarding future discoveries. These may include vaccines, novel medications using in silico exploration with biological confirmation, trials of reactivation prevention, as well as identification and target","PeriodicalId":55154,"journal":{"name":"Folia Parasitologica","volume":"72 ","pages":""},"PeriodicalIF":1.6,"publicationDate":"2025-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145024868","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":"Massive, disseminated and lethal cysticercosis caused by Taenia crassiceps (Cestoda) in captive western grey bamboo lemur (Hapalemur occidentalis Rumpler) in Zoo in the Czech Republic.","authors":"Jana Jezkova, Veronika Zikmundova, Pavla Prihodova, Frantisek Kostka, Bohumil Sak, Martin Kvac-","doi":"10.14411/fp.2025.026","DOIUrl":"10.14411/fp.2025.026","url":null,"abstract":"<p><p>Taenia crassiceps (Zeder, 1800), a zoonotic cestode with a wide geographical distribution, utilises canids as definitive hosts and small rodents as intermediate hosts. However, accidental infections in non-human primates, particularly in captive lemurs, have been increasingly documented. In this case report, we describe the first documented case of cysticercosis caused by the larval stage of T. crassiceps (metacestode; also known as Cysticercus longicollis Rudolphi, 1819) in a captive western grey bamboo lemur (Hapalemur occidentalis Rumpler). The affected female lemur showed progressive abdominal distension over a period of two months, which initially indicated pregnancy. At necropsy, multiple thin-walled metacestodes were discovered throughout the abdominal and thoracic cavities, including a large polycystic mass involving the liver and peritoneum. Histopathological analysis revealed larval cestodes with armed (hook-bearing) scoleces embedded in vascularised stromal tissue, accompanied by marked eosinophilic and macrophage infiltration and focal necrosis, particularly in the lungs. Morphological and molecular identification based on COI gene sequencing confirmed the presence of T. crassiceps. Despite extensive parasitological investigations, no definitive host excreting T. crassiceps eggs was found in the zoological facility where the lemur was kept. These results emphasise the possibility of indirect environmental transmission and highlight the susceptibility of lemurs as atypical intermediate hosts. This case confirms previous reports of lethal cysticercosis in lemurs, which is often characterised by rapid systemic spread of metacestodes. Our findings also emphasise the need for increased awareness and preventive measures to reduce the risk of parasite infections in vulnerable captive primates.</p>","PeriodicalId":55154,"journal":{"name":"Folia Parasitologica","volume":"72 ","pages":""},"PeriodicalIF":1.6,"publicationDate":"2025-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145024822","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}