Parasitology最新文献_第10页

Mapping medieval malaria in the Netherlands: A bioarchaeological approach using cribra orbitalia as a proxy. 绘制荷兰中世纪疟疾分布图。以眶嵴为代用物的生物考古方法。

IF 2.4 3区医学

Parasitology Pub Date : 2026-02-18 DOI: 10.1017/S0031182026101747

Rachel Schats

{"title":"Mapping medieval malaria in the Netherlands: A bioarchaeological approach using cribra orbitalia as a proxy.","authors":"Rachel Schats","doi":"10.1017/S0031182026101747","DOIUrl":"10.1017/S0031182026101747","url":null,"abstract":"Malaria, historically a significant health burden in temperate Europe, particularly in the low-lying marshy areas, is often poorly represented in discussions of health in the pre-modern Netherlands. Although malaria does not produce pathognomonic skeletal lesions, the haemolytic anaemia associated with repeated infection is thought to contribute to the development of cribra orbitalia, making population-level patterns in this non-specific skeletal marker informative for exploring past malaria burden. This study applied a spatial epidemiological approach, which investigated (1) the spatial distribution of cribra orbitalia prevalence across 28 archaeological medieval sites in the Netherlands, and (2) whether this distribution can be explained by underlying environmental features consistent with malaria transmission and historical mosquito density. Global Moran's I revealed a significant positive spatial autocorrelation in prevalence. Local Indicator of Spatial Association (LISA) analysis confirmed this, identifying distinct High-High clusters in the Southwest and Low-Low clusters in the East of the Netherlands. However, linear regression models using broad-scale environmental variables failed to explain these spatial patterns. This likely reflects their inability to capture the specific ecology of the local malaria mosquito, Anopheles atroparvus, which preferentially breeds in brackish environments. Consistent with this interpretation, cribra orbitalia prevalence was significantly positively correlated with historical (1938) estimates of A. atroparvus density. The observed clustering and correlation with mosquito density suggest that malaria contributed to cribra orbitalia prevalence and may have been an important disease in certain regions of the medieval Netherlands; however, interpretation is constrained by small non-adult sample sizes as well as uneven preservation across the Netherlands.","PeriodicalId":19967,"journal":{"name":"Parasitology","volume":" ","pages":"1-14"},"PeriodicalIF":2.4,"publicationDate":"2026-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146213765","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A new species of Monoplectanum sillaginis sp. nov. (Monopisthocotyla: Diplectanidae) in sillaginid fish from Thailand: the investigations of species diversity, infective situation and morphology. 泰国新种单子叶目：双子叶科单子叶目一新种：物种多样性、侵染情况及形态调查。

IF 2.5 3区医学

Parasitology Pub Date : 2026-02-16 DOI: 10.1017/S0031182026101759

Nussaba Niyom, Pichit Wiroonpan, Watchariya Purivirojkul

{"title":"A new species of Monoplectanum sillaginis sp. nov. (Monopisthocotyla: Diplectanidae) in sillaginid fish from Thailand: the investigations of species diversity, infective situation and morphology.","authors":"Nussaba Niyom, Pichit Wiroonpan, Watchariya Purivirojkul","doi":"10.1017/S0031182026101759","DOIUrl":"10.1017/S0031182026101759","url":null,"abstract":"Monoplectanum monogeneans are gill parasites specific to fish in the family Sillaginidae. The sillaginid fish were collected from the middle and upper Gulf of Thailand and the Andaman Sea, Thailand, from May 2024 to January 2025. A total of 2096 fish belonging to 5 species- Sillago aeolus, S. asiatica S. indica, S. ingenuua and S. sihama were identified. Three species of Monoplectanum monogeneans were detected in 3 fish species, including 1 newly described species, M. sillaginis sp. nov. Monoplectanum sillaginis sp. nov. was found to infect 3 fish species, S. aeolus, S. indica and S. sihama, collected from the upper Gulf of Thailand. Monoplectanum youngi infected S. indica, representing a new host record, and S. sihama from both the middle and upper Gulf of Thailand. Monoplectanum australe was found to infect only S. aeolus, which was collected from the upper Gulf of Thailand. Overall prevalence and mean intensity of infections were 11.21% and 1.72, respectively. Regarding morphological features, no significant differences in key characters of both M. australe and M. youngi were observed when comparing the current and original descriptions. Monoplectanum sillaginis sp. nov., can be distinguished from these 2 species by the characteristics of its sclerotized male copulatory organ, particularly in the terminal part of the posterior prostatic reservoir, which is shuttle-shaped, as well as the number of rodlet rows in the squamodisc.","PeriodicalId":19967,"journal":{"name":"Parasitology","volume":" ","pages":"1-11"},"PeriodicalIF":2.5,"publicationDate":"2026-02-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13244222/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146202538","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Antimalarial drug resistance in Plasmodium falciparum isolates from the Pacific Coast of Colombia. 哥伦比亚太平洋沿岸恶性疟原虫分离株的抗疟药耐药性。

IF 2.5 3区医学

Parasitology Pub Date : 2026-02-13 DOI: 10.1017/S0031182026101711

Kyle Michie, Bernice Chiu, Carla Briggs, Vladimir Corredor, Lorena Matta-Cortés, Julian C Rayner, Diego F Echeverri

{"title":"Antimalarial drug resistance in Plasmodium falciparum isolates from the Pacific Coast of Colombia.","authors":"Kyle Michie, Bernice Chiu, Carla Briggs, Vladimir Corredor, Lorena Matta-Cortés, Julian C Rayner, Diego F Echeverri","doi":"10.1017/S0031182026101711","DOIUrl":"10.1017/S0031182026101711","url":null,"abstract":"Antimalarial drug resistance has evolved repeatedly and independently in both Southeast Asia and South America, but functional studies of parasite resistance have almost all concentrated on Asian isolates. Colombia contributes nearly one-third of all Plasmodium falciparum cases in South America, primarily focused on the Pacific Coast. We assessed the presence of resistance associated genotypes and phenotypes in this region using a panel of P. falciparum isolates collected across 23 years, with a specific focus on sensitivity to historically used antimalarials chloroquine, mefloquine, pyrimethamine and sulfadoxine. The sensitivity profiles were predicted genetically using a combination of quantitative PCR assays and sequencing of known resistance-associated loci, including the artemisinin resistance-associated gene PfKelch13. The isolates were then assessed phenotypically by introduction to in vitro culture allowing both antimalarial sensitivity testing and the establishment of a biobank of Colombian isolates for further work. We established that multiple antimalarial resistance associated genotypes and phenotypes, particularly for chloroquine and mefloquine, persist across the Colombian Pacific Coast but found no evidence for the presence of artemisinin resistance-associated polymorphisms. The continued presence of resistance against historically used antimalarials argues against the use of these drugs as partner therapy for artemisinin and highlights the unique epidemiological environment of the Pacific Coast which allows for long-term maintenance of resistance.","PeriodicalId":19967,"journal":{"name":"Parasitology","volume":" ","pages":"1-12"},"PeriodicalIF":2.5,"publicationDate":"2026-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13244236/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146181712","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

The most virulent parasite determines virulence in coinfection: a meta-analysis. 最毒的寄生虫决定合并感染的毒力：一项荟萃分析。

IF 2.5 3区医学

Parasitology Pub Date : 2026-02-11 DOI: 10.1017/S003118202610170X

Charlotte Rafaluk, Victoria L Pike, Mathias Franz, Kayla C King

{"title":"The most virulent parasite determines virulence in coinfection: a meta-analysis.","authors":"Charlotte Rafaluk, Victoria L Pike, Mathias Franz, Kayla C King","doi":"10.1017/S003118202610170X","DOIUrl":"10.1017/S003118202610170X","url":null,"abstract":"Coinfections of hosts by multiple parasite species and strains are widespread in nature. Theory suggests that these infections have a key influence on the virulence, or harm caused, to hosts. However, it is still unclear whether multiple parasites, which may compete for resources and space, are indeed worse for hosts across the tree of life. To test this hypothesis, we conducted separate meta-analyses based on different expectations derived from virulence in single infections. We included 68 effect sizes from 19 experiments on non-human animal host species and 38 parasite species combinations. We found that coinfections are overall more virulent than the mean degree of harm caused by both parasites in retrospective single infections. That said, the coinfection virulence level is similar to that of the most virulent parasite, and less than the additive virulence of both single infections. These results suggest that the most virulent parasite is the primary driver of virulence in coinfection. This finding has implications for parasite spread in nature and suggests we focus on controlling the more harmful parasites in the first instance, when trying to limit the damage caused by coinfection.","PeriodicalId":19967,"journal":{"name":"Parasitology","volume":" ","pages":"1-9"},"PeriodicalIF":2.5,"publicationDate":"2026-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13244233/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146157963","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Retrospective screening reveals the rare occurrence of zoonotic Strongyloides stercoralis in dogs from temperate Australia, 2014-2024. 回顾性筛查显示2014-2024年澳大利亚温带地区犬类人畜共患粪类圆线虫罕见。

IF 2.5 3区医学

Parasitology Pub Date : 2026-02-09 DOI: 10.1017/S0031182026101693

Jaisy Chong, Jan Šlapeta, Maira Nascimento Meggiolaro, Jennifer Green, Rogan Lee, Michael P Ward, Nicolle Kirkwood

{"title":"Retrospective screening reveals the rare occurrence of zoonotic Strongyloides stercoralis in dogs from temperate Australia, 2014-2024.","authors":"Jaisy Chong, Jan Šlapeta, Maira Nascimento Meggiolaro, Jennifer Green, Rogan Lee, Michael P Ward, Nicolle Kirkwood","doi":"10.1017/S0031182026101693","DOIUrl":"10.1017/S0031182026101693","url":null,"abstract":"Strongyloides stercoralis is an intestinal nematode capable of infecting humans and dogs. Occurrence in dogs from temperate, traditionally non-endemic regions remains poorly characterized, often due to the absence of accessible veterinary diagnostic tests. Recent reports of infections from temperate metropolitan areas have raised concerns about the extent of S. stercoralis prevalence in dogs in these regions. This study investigated the presence of S. stercoralis DNA in canine faecal samples from Sydney, New South Wales, Australia, using a real-time quantitative PCR (qPCR) targeting the 18S rRNA gene, with a limit of detection of 2 DNA copies. Archived faecal DNA (n = 448) collected between 2014 and 2024 from 2 university veterinary hospitals were screened. Of all samples, 1 (0.02%) was positive for S. stercoralis DNA, corresponding to approximately 6.8 × 103 18S rDNA copies, equivalent to 3.2 of S. ratti third-stage larvae, per 250 mg of dog faeces. Partial cox1 and 18S rDNA loci (HVR-I and HVR-IV) deep amplicon sequencing confirmed that S. stercoralis circulates between dogs and humans. The positive sample originated from a Border Collie puppy presenting with gastrointestinal signs. Although detection was rare, this confirms the parasite's presence in companion dogs within a temperate urban environment. The results highlight the diagnostic utility of 18S rDNA-based qPCR for retrospective surveillance and support the inclusion of S. stercoralis in molecular diagnostic panels for dogs with gastrointestinal disease. Expanded, targeted molecular and coproscopic surveillance is warranted to clarify the prevalence, distribution and zoonotic potential of S. stercoralis in dogs across Australia's non-endemic regions.","PeriodicalId":19967,"journal":{"name":"Parasitology","volume":" ","pages":"1-9"},"PeriodicalIF":2.5,"publicationDate":"2026-02-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13244224/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146143243","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Epidemiological survey of Dirofilaria immitis and its Wolbachia endosymbiont in wild raccoon dogs in Seoul, Korea, with emphasis on lung tissue-based detection. 韩国首尔地区野生貉中免疫丝虫及其沃尔巴克氏体内共生体的流行病学调查，重点是肺组织检测。

IF 2.4 3区医学

Parasitology Pub Date : 2026-02-06 DOI: 10.1017/S0031182026101620

Jisook Ryu, Hyunho Lee, Hyun-Kyung Lee, Kyoungsuk Kang, Chang-Seek Ro, Jang-Hee Han, Young Deok Suh, So Eun Ryu, Won Gi Yoo, Seong Chan Yeon

{"title":"Epidemiological survey of Dirofilaria immitis and its Wolbachia endosymbiont in wild raccoon dogs in Seoul, Korea, with emphasis on lung tissue-based detection.","authors":"Jisook Ryu, Hyunho Lee, Hyun-Kyung Lee, Kyoungsuk Kang, Chang-Seek Ro, Jang-Hee Han, Young Deok Suh, So Eun Ryu, Won Gi Yoo, Seong Chan Yeon","doi":"10.1017/S0031182026101620","DOIUrl":"https://doi.org/10.1017/S0031182026101620","url":null,"abstract":"In the ecologically diverse metropolitan area of Seoul, raccoon dogs (Nyctereutes procyonoides) coexist with humans and domestic animals, creating opportunities for vector-borne parasite transmission. Climate-driven shifts in mosquito populations may further enhance these risks, highlighting the need to monitor Dirofilaria immitis in urban wildlife for veterinary and public health. Among 51 raccoon dogs examined, D. immitis was identified in the pulmonary arteries and right ventricle of 13 animals (25.5%) by necropsy, with worm burdens ranging from 2 to 9. Lung tissue PCR revealed 4 additional subclinical infections, resulting in a final confirmed prevalence of 17 positives (33.3%). In contrast, whole-blood PCR detected only 11 positives (21.6%), all confirmed by necropsy, indicating higher sensitivity of lung tissue PCR. Phylogenetic analysis of cytochrome c oxidase subunit 1 sequences showed all isolates clustered with reference D. immitis across Asia and Europe, and haplotype analysis revealed low genetic diversity among Korean isolates. Wolbachia 16S ribosomal RNA sequences from raccoon dogs consistently grouped in supergroup C, confirming their association with D. immitis. These findings confirm natural infections of D. immitis and Wolbachia in wild raccoon dogs and highlight their potential role as urban wildlife reservoirs, while lung tissue-based molecular detection offers synergistic advantages for detecting subclinical infections and improving estimates of heartworm occurrence.","PeriodicalId":19967,"journal":{"name":"Parasitology","volume":" ","pages":"1-8"},"PeriodicalIF":2.4,"publicationDate":"2026-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146126147","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Taxonomy of Strongyloides in humans, dogs and cats: a comprehensive review from morphology to molecular and population genetics. 人类、狗和猫的类圆线虫分类：从形态学到分子和群体遗传学的综合综述。

IF 2.5 3区医学

Parasitology Pub Date : 2026-02-06 DOI: 10.1017/S003118202610167X

Huan Zhao, Constantin Constantinoiu, Richard Stewart Bradbury

{"title":"Taxonomy of Strongyloides in humans, dogs and cats: a comprehensive review from morphology to molecular and population genetics.","authors":"Huan Zhao, Constantin Constantinoiu, Richard Stewart Bradbury","doi":"10.1017/S003118202610167X","DOIUrl":"10.1017/S003118202610167X","url":null,"abstract":"The genus Strongyloides (Nematoda; Strongyloididae) comprises over 50 species of nematodes parasitic in terrestrial vertebrates, including humans (Homo sapiens), dogs (Canis lupus familiaris) and cats (Felis catus). Taxonomy of the genus has been shaped by over a century of morphological research, with the most widely adopted framework established in the late 1980s. Advances in molecular genetics have increasingly revealed cryptic diversity and yielded new insights into interspecific and intraspecific relationships within the genus. Despite the rapid expansion of molecular genetic data over the past decade, particularly for Strongyloides spp. infecting humans and companion animals, a synthesis of these findings remains lacking. Here, we review historical and contemporary literature on the taxonomy of Strongyloides spp. infecting humans (Strongyloides stercoralis, Strongyloides fuelleborni), dogs (S. stercoralis, including host-specific lineages and cryptic taxa) and cats (Strongyloides felis, Strongyloides planiceps, Strongyloides tumefaciens and S. stercoralis). We provide an updated overview of taxonomic histories, host ranges and key morphological features for genus identification and species differentiation, along with a synthesis of available molecular taxonomic data informed by phylogenetic and population genetic studies. This work is intended to serve as a renewed reference for researchers, diagnosticians and clinicians working with Strongyloides spp. in medical and veterinary contexts, supporting accurate diagnosis and guiding future taxonomic research on these nematodes.","PeriodicalId":19967,"journal":{"name":"Parasitology","volume":" ","pages":"1-26"},"PeriodicalIF":2.5,"publicationDate":"2026-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13244237/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146126111","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Spirometra infections in humans in Asia and Oceania. 亚洲和大洋洲人类的肺metra感染。

IF 2.4 3区医学

Parasitology Pub Date : 2026-02-04 DOI: 10.1017/S0031182026101644

Hiroshi Yamasaki, Pewpan Maleewong Intapan, Wanchai Maleewong

{"title":"Spirometra infections in humans in Asia and Oceania.","authors":"Hiroshi Yamasaki, Pewpan Maleewong Intapan, Wanchai Maleewong","doi":"10.1017/S0031182026101644","DOIUrl":"10.1017/S0031182026101644","url":null,"abstract":"The genus Spirometra (Cestoda: Diphyllobothriidae) is a group of tapeworms distributed worldwide and includes important species that cause sparganosis and spirometrosis in humans. Traditionally, it has been accepted that non-proliferative sparganosis is caused by Spirometra erinaceieuropaei and proliferative sparganosis by Sparganum proliferum. However, recent molecular studies have revealed that the species present in Asia are Spirometra mansoni and the recently described Spirometra asiana, not S. erinaceieuropaei endemic to Europe. It is questionable whether Spa. proliferum is a valid species: proliferative sparganosis cases in Asia might be caused by S. mansoni. Some human cases of multiple infections with plerocercoids of non-proliferative species may have been mistaken for proliferative sparganosis. This review focuses on sparganosis and spirometrosis in Asia and Oceania and overviews the molecular phylogeny, geographic distribution, current situation, innovative diagnostic methods and future perspectives for work on these species. Whether the species referred to as Spa. proliferum in Asia and Spa. proliferum in South America are conspecific is also discussed. Concerning S. asiana, little is known about its biology, biogeography and pathogenicity in humans. Accurate identification of these etiological agents through DNA analysis is important for the reliable assessment of zoonotic relevance and further understanding of the biology and epidemiology of these tapeworms.","PeriodicalId":19967,"journal":{"name":"Parasitology","volume":" ","pages":"1-18"},"PeriodicalIF":2.4,"publicationDate":"2026-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146113713","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Exploring the diversity of Brazilian camallanids: a checklist of the family Camallanidae (Nematoda) from Brazil with a new key to identification of the genera in the family. 探索巴西camallanids的多样性：巴西Camallanidae （Nematoda）的清单和鉴定该科属的新钥匙。

IF 2.5 3区医学

Parasitology Pub Date : 2026-02-02 DOI: 10.1017/S0031182026101668

Leandro Mauricio Oliveira Silva, Ana Nunes Santos, Luiz Felipe Ferreira Trindade, Francisco Tiago Vasconcelos Melo

{"title":"Exploring the diversity of Brazilian camallanids: a checklist of the family Camallanidae (Nematoda) from Brazil with a new key to identification of the genera in the family.","authors":"Leandro Mauricio Oliveira Silva, Ana Nunes Santos, Luiz Felipe Ferreira Trindade, Francisco Tiago Vasconcelos Melo","doi":"10.1017/S0031182026101668","DOIUrl":"10.1017/S0031182026101668","url":null,"abstract":"The family Camallanidae includes nematodes traditionally classified based on the morphology of their buccal capsules. However, several questions have been raised about the validity of these characteristics for their classification. Despite having a remarkable diversity, our knowledge of camallanids in Brazil remains limited, leaving gaps in our understanding of the true species diversity in the country, their geographical distribution and host species associations. Therefore, this study presents a checklist of species in the family Camallanidae recorded in Brazil, including a review for the classificationa and new dichotomous key for identifying the genera. Camallanidae comprises 2 subfamilies with 13 valid genera, classified based on the morphology of the buccal capsule and trident, and on the presence, shape and distribution of internal ridges on the capsule. Thirty-seven species, distributed across 7 genera, have been recorded in Brazil so far, parasitizing 276 host taxa, including fish, chelonians and snakes, with no records of these nematodes parasitizing amphibians in the country. We reallocated five species of Spirocamallanus and 2 species of Procamallanus to Denticamallanus, and 1 species of Camallanus was reallocated to Serpinema. Spirocamallanus is the most diverse genus, with 16 species, and Spirocamallanus inopinatus exhibited the highest host taxa association diversity (144) and the widest geographical distribution. Until further molecular studies are conducted, the new dichotomous key presented in this checklist contributes to a better understanding of the classification of the family Camallanidae, based on the morphology of the buccal capsule and accessory structures.","PeriodicalId":19967,"journal":{"name":"Parasitology","volume":" ","pages":"1-36"},"PeriodicalIF":2.5,"publicationDate":"2026-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13244238/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146100437","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Manipulating vector transmission reveals local processes in Bartonella communities of bats. 操纵媒介传播揭示了蝙蝠巴尔通体群落的局部过程。

IF 2.5 3区医学

Parasitology Pub Date : 2026-02-02 DOI: 10.1017/S0031182026101656

Clifton D McKee, Colleen T Webb, Michael Y Kosoy, Richard Suu-Ire, Yaa Ntiamoa-Baidu, Andrew A Cunningham, James L N Wood, David T S Hayman

{"title":"Manipulating vector transmission reveals local processes in Bartonella communities of bats.","authors":"Clifton D McKee, Colleen T Webb, Michael Y Kosoy, Richard Suu-Ire, Yaa Ntiamoa-Baidu, Andrew A Cunningham, James L N Wood, David T S Hayman","doi":"10.1017/S0031182026101656","DOIUrl":"10.1017/S0031182026101656","url":null,"abstract":"Infectious diseases result from multiple interactions among microbes and hosts, but community ecology approaches are rarely applied. Manipulation of vector populations provides a unique opportunity to test the importance of vectors in infection cycles while also observing changes in pathogen community diversity and species interactions. Yet for many vector-borne infections in wildlife, a biological vector has not been experimentally verified, and few manipulative studies have been performed. Using a captive colony of fruit bats in Ghana, we conducted the first study to experimentally test the role of bat flies as vectors of Bartonella species. We observed changes in the Bartonella bacteria community over time following the decline of bat flies and again after their subsequent restocking. Reduced transmission rates led to microbial community changes attributed to ecological drift and potential species sorting through interspecific competition mediated by host immunity. We demonstrate that forces maintaining diversity in communities of free-living macroorganisms act in similar ways in communities of symbiotic microorganisms, both within and among hosts.","PeriodicalId":19967,"journal":{"name":"Parasitology","volume":" ","pages":"1-12"},"PeriodicalIF":2.5,"publicationDate":"2026-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13215733/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146100430","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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