Ticks and Tick-borne Diseases最新文献_第6页

Attachment sites of generalist ticks on birds depend on environmental factors (habitat and season) rather than on tick species 一般蜱对鸟类的附着地点取决于环境因素（栖息地和季节），而不是蜱的种类。

IF 3.4 2区医学

Ticks and Tick-borne Diseases Pub Date : 2026-03-01 Epub Date: 2026-02-05 DOI: 10.1016/j.ttbdis.2026.102608

Andor Pitó , Előd Győrig , Lili Sztrehárszki , Míra Júlia Radnai , Eszter Aletta Vig , Viktor Forintos , Benedek Juhász , Péter Óvári , Sándor Hornok

{"title":"Attachment sites of generalist ticks on birds depend on environmental factors (habitat and season) rather than on tick species","authors":"Andor Pitó , Előd Győrig , Lili Sztrehárszki , Míra Júlia Radnai , Eszter Aletta Vig , Viktor Forintos , Benedek Juhász , Péter Óvári , Sándor Hornok","doi":"10.1016/j.ttbdis.2026.102608","DOIUrl":"10.1016/j.ttbdis.2026.102608","url":null,"abstract":"<div><div>The aim of this investigation was to analyze predilection sites of ticks on avian hosts according to tick species and developmental stages, as well as individual and ecological characters of bird species (i.e., their age, habitat type, seasonality). For this, 916 ticks were removed from 289 birds in Hungary at 23 different places in the course of one year. The location of ticks on birds was recorded whenever possible. Ticks were identified as <em>Ixodes ricinus</em> (n=595), <em>Ixodes frontalis</em> (n=34), <em>Ixodes arboricola</em> (n=21), <em>Ixodes acuminatus</em> (n=1), <em>Haemaphysalis concinna</em> (n=246), <em>Haemaphysalis punctata</em> (n=16) and <em>Hyalomma rufipes</em> (n=3). Several new tick-host associations were revealed. Tick infestation showed predominance on juvenile birds in comparison with older ones. Among ornithophilic ticks, <em>I. arboricola</em> was associated with the eyes, whereas most <em>I. frontalis</em> larvae were collected from the ear region. Considering generalist ticks, significantly more specimens of <em>I. ricinus</em> were collected in the spring than during the summer, in contrast to <em>H. concinna</em>-infestation of birds associated with the summer. Importantly, while <em>I. ricinus</em> predominated in the corner of the beaks in both forested and reedbed habitats, the predilection site of <em>H. concinna</em> was the throat region in reedbed but the corner of beaks on forest-dwelling bird species. These findings imply that the same tick species occurred at different predilection sites during the summer depending on the typical habitat of its avian hosts. By contrast, ornithophilic tick species usually infest a narrow range of avian hosts with particular spatiotemporal distribution, allowing them to be more site-specific.</div></div>","PeriodicalId":49320,"journal":{"name":"Ticks and Tick-borne Diseases","volume":"17 2","pages":"Article 102608"},"PeriodicalIF":3.4,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146132465","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Geographic variation in risk of blacklegged tick-borne coinfections in the eastern United States 美国东部黑腿蜱传播的合并感染风险的地理差异

IF 3.4 2区医学

Ticks and Tick-borne Diseases Pub Date : 2026-03-01 Epub Date: 2026-02-03 DOI: 10.1016/j.ttbdis.2026.102610

Alexander T. Grimaudo, Karen M. Holcomb, James C. Burtis, Sarah E. Maes, Lynn M. Osikowicz, Andrias Hojgaard, Christina M. Parise, Erik Foster, Rebecca J. Eisen

{"title":"Geographic variation in risk of blacklegged tick-borne coinfections in the eastern United States","authors":"Alexander T. Grimaudo, Karen M. Holcomb, James C. Burtis, Sarah E. Maes, Lynn M. Osikowicz, Andrias Hojgaard, Christina M. Parise, Erik Foster, Rebecca J. Eisen","doi":"10.1016/j.ttbdis.2026.102610","DOIUrl":"10.1016/j.ttbdis.2026.102610","url":null,"abstract":"<div><div>Blacklegged tick (<em>Ixodes scapularis</em>)-associated diseases are increasing in incidence and geographic range in the United States. Pathogen range expansion may increase the risk of coinfections, which could complicate accurate diagnosis and treatment of tick-borne diseases. To identify regions of coinfection risk across the eastern United States, we used a national database of tick-borne pathogen occurrence to identify areas of co-occurrence between four <em>I. scapularis</em>-borne human pathogens: <em>Anaplasma phagocytophilum</em> human-active variant (<em>Apha</em>; anaplasmosis), <em>Babesia microti</em> (<em>Bam</em>; babesiosis), <em>Borrelia burgdorferi</em> sensu stricto (<em>Bbss</em>; Lyme disease), and <em>Borrelia miyamotoi</em> (<em>Bmiya</em>; hard tick relapsing fever). Using testing data from 13,437 nymphs submitted to the United States Centers for Disease Control and Prevention from 2013 to 2024, we summarized the mean and variation in observed coinfection prevalence from site to regional scales. <em>Bbss-Bam, Bbss</em>-<em>Apha</em>, and <em>Bam-Apha</em> co-occurred primarily in the Northeast and Upper Midwest, whereas <em>Bbss-Bmiya</em> co-occurrence extended from those regions into the Ohio Valley and southern Appalachia. Within zones of co-occurrence, <em>Bbss-Bam</em> was the most prevalent coinfection, followed by <em>Bbss-Apha, Bam-Apha</em>, and <em>Bbss-Bmiya</em>. Except for <em>Bbss-Bmiya</em>, resampling simulations for all coinfections revealed coinfections form more often than expected by chance. This study is a first step in delineating acarological risk for <em>I. scapularis</em>-borne coinfections in the United States.</div></div>","PeriodicalId":49320,"journal":{"name":"Ticks and Tick-borne Diseases","volume":"17 2","pages":"Article 102610"},"PeriodicalIF":3.4,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146102610","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Identification and classification of Crimean-Congo hemorrhagic fever virus from Hyalomma asiaticum from southern Mongolia 蒙古南部亚洲透明体中克里米亚-刚果出血热病毒的鉴定和分类

IF 3.4 2区医学

Ticks and Tick-borne Diseases Pub Date : 2026-01-01 Epub Date: 2026-01-14 DOI: 10.1016/j.ttbdis.2026.102603

Nora G. Cleary , Doniddemberel Altantogtokh , Graham A. Matulis , Nyamjav Davaajav , Yadam-Erdene Sarnai , Joshua Richardson , Jigjav Battsetseg , Grant Hall , Baasandagva Uyanga , Bazartseren Boldbaatar , Bandikhuu Amgalanbayar , Jeffrey R. Kugelman , Jennifer L. Williams , Peter Bernota , Jodi Fiorenzano , Irina V. Etobayeva , Andrew G. Letizia , Jeffrey W. Koehler , Michael E. von Fricken

{"title":"Identification and classification of Crimean-Congo hemorrhagic fever virus from Hyalomma asiaticum from southern Mongolia","authors":"Nora G. Cleary , Doniddemberel Altantogtokh , Graham A. Matulis , Nyamjav Davaajav , Yadam-Erdene Sarnai , Joshua Richardson , Jigjav Battsetseg , Grant Hall , Baasandagva Uyanga , Bazartseren Boldbaatar , Bandikhuu Amgalanbayar , Jeffrey R. Kugelman , Jennifer L. Williams , Peter Bernota , Jodi Fiorenzano , Irina V. Etobayeva , Andrew G. Letizia , Jeffrey W. Koehler , Michael E. von Fricken","doi":"10.1016/j.ttbdis.2026.102603","DOIUrl":"10.1016/j.ttbdis.2026.102603","url":null,"abstract":"<div><div>Crimean-Congo hemorrhagic fever virus (CCHFV) is an orthonairovirus that can be found in <em>Hyalomma</em> spp. ticks. It can cause fatal disease in humans, with the potential for person-to-person transmission in clinical settings. To further characterize CCHFV within Mongolia, small (S), medium (M), and large (L) segments of viral genome were amplified. Adult unfed <em>Hyalomma asiaticum</em> were hand collected from the environment in Bayankhongor, Dornogovi, Dundgovi, Govi-Altai, and Umnugovi aimags (provinces) located in southern Mongolia. Seven of 184 pools tested positive for CCHFV using conventional PCR targeting the S segment. Through next-generation sequencing, a full genome from a single tick pool (n = 5 ticks) collected from Dornogovi in 2022 was detected, with phylogenetic analysis of all three segments indicating the genome fell within the Asian genotype IV. The closest identity (>98%) of all three sequences were to CCHFV viral genomes identified from <em>H. asiaticum</em> collected within China in 2015 and 2016. Given that the Dornogovi aimag directly borders the Inner Mongolia region of China, the sequence similarity is likely attributable to the geographic proximity. Continued surveillance and genetic characterization of CCHFV within Mongolia is vital for disease surveillance as the growing threat of CCHFV in this region is compounded by the expansion of trade and risk of cross-border transmission.</div></div>","PeriodicalId":49320,"journal":{"name":"Ticks and Tick-borne Diseases","volume":"17 1","pages":"Article 102603"},"PeriodicalIF":3.4,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145977456","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Potential for integrated monitoring of tick-borne diseases: Indices of tick activity, citizen science, and tick-borne Lyme neuroborreliosis in Denmark from 2017 to 2024 蜱传疾病综合监测的潜力：2017年至2024年丹麦蜱活动指数、公民科学和蜱传莱姆病神经螺旋体病

IF 3.4 2区医学

Ticks and Tick-borne Diseases Pub Date : 2026-01-01 Epub Date: 2026-01-07 DOI: 10.1016/j.ttbdis.2025.102602

Lene Jung Kjær , René Bødker , Nina Król , Sigurdur Skarphédinsson , Per Moestrup Jensen

{"title":"Potential for integrated monitoring of tick-borne diseases: Indices of tick activity, citizen science, and tick-borne Lyme neuroborreliosis in Denmark from 2017 to 2024","authors":"Lene Jung Kjær , René Bødker , Nina Król , Sigurdur Skarphédinsson , Per Moestrup Jensen","doi":"10.1016/j.ttbdis.2025.102602","DOIUrl":"10.1016/j.ttbdis.2025.102602","url":null,"abstract":"<div><div>Monitoring programs that track natural fluctuations in tick activity, human exposure, and disease incidence are limited in their ability to detect shifts in tick-borne disease (TBD) risk. We evaluated an integrated approach combining field-based tick surveillance, Google search trends, and national Lyme neuroborreliosis (LNB) records in Denmark from 2017-2024. Tick nymph activity was modelled using meteorological data from six forest sites and validated against independent 2024–2025 data. The model showed strong predictive performance (Pearson’s r = 0.76, normalised root-mean-square error = 0.16), with temperature, relative humidity, and precipitation significantly influencing activity. Predicted tick activity correlated strongly with Danish Google search terms for ticks (“Flåt” and “Tæge”) with a 1-month lag, and with “borrelia” searches without lag. Predicted activity preceded LNB incidence by one month, consistent with known delays in symptom onset and diagnosis. These findings suggest that digital search behaviour may reflect early public awareness and exposure, offering potential as an early warning signal. We adopted a bottom-up modelling approach, using predicted tick activity derived from meteorological data as a shared reference to explore weather-driven congruence across field surveillance, digital search behaviour, and disease records. The strong temporal alignment across data sources supports the feasibility of integrated TBD surveillance and indicates that the six field sites provide a representative signal of tick activity and can therefore act as effective sentinel sites. Combining weather data, sentinel site activity, digital behaviour, and health records offers a scalable, cost-effective complement to traditional monitoring and may improve confidence in detected trends, enabling earlier public health responses.</div></div>","PeriodicalId":49320,"journal":{"name":"Ticks and Tick-borne Diseases","volume":"17 1","pages":"Article 102602"},"PeriodicalIF":3.4,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145935769","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Propagation of Encephalitozoon cuniculi in tick cell lines supports the plausibility of possible tick-mediated transmission of this microsporidian 在蜱细胞系中的传播支持了这种微孢子虫可能通过蜱媒介传播的可能性

IF 3.4 2区医学

Ticks and Tick-borne Diseases Pub Date : 2026-01-01 Epub Date: 2025-12-08 DOI: 10.1016/j.ttbdis.2025.102578

Bohumil Sak , Michaela Fibigerová , Kristína Mravcová , Nikola Holubová , Silvie Šikutová , Jana Fenclová , Lesley Bell-Sakyi , Martin Kváč , Ivo Rudolf

{"title":"Propagation of Encephalitozoon cuniculi in tick cell lines supports the plausibility of possible tick-mediated transmission of this microsporidian","authors":"Bohumil Sak , Michaela Fibigerová , Kristína Mravcová , Nikola Holubová , Silvie Šikutová , Jana Fenclová , Lesley Bell-Sakyi , Martin Kváč , Ivo Rudolf","doi":"10.1016/j.ttbdis.2025.102578","DOIUrl":"10.1016/j.ttbdis.2025.102578","url":null,"abstract":"<div><div>Microsporidia, obligate intracellular parasitic fungi, are increasingly associated with asymptomatic infections. One of the most prevalent zoonotic species, <em>Encephalitozoon cuniculi</em>, has been detected in <em>Ixodes ricinus</em> ticks. Nevertheless, the capacity of microsporidia to replicate within tick hosts remains unresolved. We used tick cell lines IRE11, IRE/CTVM19 and IRE/CTVM20 along with mammalian line Vero E6 for <em>in vitro</em> testing of <em>E. cuniculi</em> propagation. We evaluated the spore number using quantitative RT-PCR and documented the presence of microsporidia in host cells microscopically. We reported successful growth of <em>Encephalitozoon cuniculi</em> in tested tick cell lines, with IRE/CTVM19 providing the most suitable conditions for <em>E. cuniculi</em> propagation, reaching up to 1459 % increase of the inoculum. Moreover, the parasitophorous vacuoles containing developmental stages of microsporidia were observed in all cell lines. Our data support the plausibility of tick-mediated transmission, providing novel insights into the epidemiology of microsporidia.</div></div>","PeriodicalId":49320,"journal":{"name":"Ticks and Tick-borne Diseases","volume":"17 1","pages":"Article 102578"},"PeriodicalIF":3.4,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145694922","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Risk factors for α-Gal syndrome: A case-control study exploring the role of tick bites in French Guiana α-Gal综合征的危险因素：法属圭亚那蜱虫叮咬作用的病例对照研究

IF 3.4 2区医学

Ticks and Tick-borne Diseases Pub Date : 2026-01-01 Epub Date: 2026-01-28 DOI: 10.1016/j.ttbdis.2026.102607

Aude Valois , Jonas Le Forestier , Evrard Baduel , Geneviève Guillot , Théo Blaise , Pierre Couppié , François Delon , Loïc Epelboin

{"title":"Risk factors for α-Gal syndrome: A case-control study exploring the role of tick bites in French Guiana","authors":"Aude Valois , Jonas Le Forestier , Evrard Baduel , Geneviève Guillot , Théo Blaise , Pierre Couppié , François Delon , Loïc Epelboin","doi":"10.1016/j.ttbdis.2026.102607","DOIUrl":"10.1016/j.ttbdis.2026.102607","url":null,"abstract":"<div><div>α-Gal Syndrome (AGS) is an IgE-mediated allergy to galactose-α-1,3-galactose (α-Gal), a carbohydrate found in non-primate mammalian tissues. AGS manifests as delayed anaphylactic reactions following the consumption of mammalian meat or exposure to products containing α-Gal. Recent studies confirm tick bites may be a key sensitizing factor. This study aimed to investigate tick bites and other potential risk factors for AGS in French Guiana.</div><div>A retrospective case-control study was conducted at the Cayenne Hospital Center between January 2021 and October 2022. Cases were defined as adults with clinical symptoms of anaphylaxis after consumption of mammalian meat or α-Gal–containing products, and with detectable anti–α-Gal IgE (> 0.1 kUA/L). Controls were patients consulting for other IgE-mediated allergies, without any symptoms after mammalian meat consumption. Data were collected through a standardized questionnaire and specific IgE assays. Bivariate and multivariate analyses were performed to identify associated risk factors. Confounding biases were limited using a propensity score.</div><div>A total of 54 patients (18 cases, 36 controls) were included. All AGS cases reported at least one tick bite in French Guiana, versus only 22% of controls (Adjusted OR = 170.250; 95% CI [5.981 – 3.528 × 10^6], <em>p</em> < 0.001). Blood group B or AB was less frequent in cases (0% vs 19%, AOR = 0.227; 95% CI [0 – 8.899], <em>p</em> = 0.488). Atopy was not associated with AGS.</div><div>In this tropical setting, tick bites, especially from the more anthropophilic <em>Amblyomma cajennense</em> sensu stricto, appear to be a major risk factor for AGS, along with forest-related occupational exposure. These findings support the assumption that ticks are probably at least the main vector of symptomatic sensitization to α-Gal in French Guiana.</div></div>","PeriodicalId":49320,"journal":{"name":"Ticks and Tick-borne Diseases","volume":"17 1","pages":"Article 102607"},"PeriodicalIF":3.4,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146077812","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Molecular characterization of Hepatozoon spp. in cats living in Germany and other European countries 德国和其他欧洲国家猫肝虫属的分子特征

IF 3.4 2区医学

Ticks and Tick-borne Diseases Pub Date : 2026-01-01 Epub Date: 2025-12-13 DOI: 10.1016/j.ttbdis.2025.102583

Vera Geisen , Nikola Pantchev , Yury Zablotski , Majda Globokar Vrhovec , Katrin Hartmann , Michéle Bergmann , Gastón Moré , Walter Basso

{"title":"Molecular characterization of Hepatozoon spp. in cats living in Germany and other European countries","authors":"Vera Geisen , Nikola Pantchev , Yury Zablotski , Majda Globokar Vrhovec , Katrin Hartmann , Michéle Bergmann , Gastón Moré , Walter Basso","doi":"10.1016/j.ttbdis.2025.102583","DOIUrl":"10.1016/j.ttbdis.2025.102583","url":null,"abstract":"<div><div><em>Hepatozoon</em> spp. are increasingly reported in cats from Mediterranean countries, but data for Central and Northern Europe remain limited. This study investigated the occurrence and molecular diversity of <em>Hepatozoon</em> spp. in 1357 blood samples from cats living in Germany and other European countries using real-time PCR targeting the 18S rRNA gene. <em>Hepatozoon</em> spp. DNA was detected in 58 cats (4.3 %; 95 %-CI: 3.3–5.5 %). Thirty-seven positive samples were further analyzed by conventional PCR and sequencing. Four sequence types (A-D) were detected. <em>Hepatozoon felis</em> sequences classified within the genogroup I (types A and B) were identified in 33 cats; <em>Hepatozoon silvestris</em> haplotype I (type C) in one cat; and sequences showing 98.5 % identity to <em>H. silvestris</em> (type D) in three cats. Younger cats had a significantly higher infection risk (<em>p</em> = 0.026), while no association with sex was found. Samples submitted for targeted <em>Hepatozoon</em> testing and travel disease screening showed higher positivity rates. Among the 37 molecularly characterized cases, 31 had a known import origin, primarily from Greece, Spain, Cyprus, Italy, Bulgaria, the United Arab Emirates, Jordan, and Turkey. Notably, the <em>H. silvestris</em>-positive cat from Austria had no travel history, representing the first autochthonous case in a domestic cat in Austria. This study highlights the emergence of feline <em>Hepatozoon</em> infections in Europe, involving genetically diverse species. Infections should be considered mainly in cats with Mediterranean origin, travel history, outdoor access, or tick exposure. Identifying vectors responsible for transmission is crucial for implementing effective prevention strategies.</div></div>","PeriodicalId":49320,"journal":{"name":"Ticks and Tick-borne Diseases","volume":"17 1","pages":"Article 102583"},"PeriodicalIF":3.4,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145749458","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Genetic diversity of Coxiella burnetii in ticks from the Republic of Guinea 几内亚共和国蜱虫伯纳氏科谢氏菌的遗传多样性。

IF 3.4 2区医学

Ticks and Tick-borne Diseases Pub Date : 2026-01-01 Epub Date: 2026-01-10 DOI: 10.1016/j.ttbdis.2025.102597

Karifa Camara , Alissa Hammoud , Hadiatou Mariama Diallo , Adama Zan Diarra , Almamy Ousmane Deen Camara , Lanceï Kaba , Mamadou Cellou Balde , Pierre-Edouard Fournier , Florence Fenollar , Oleg Mediannikov

{"title":"Genetic diversity of Coxiella burnetii in ticks from the Republic of Guinea","authors":"Karifa Camara , Alissa Hammoud , Hadiatou Mariama Diallo , Adama Zan Diarra , Almamy Ousmane Deen Camara , Lanceï Kaba , Mamadou Cellou Balde , Pierre-Edouard Fournier , Florence Fenollar , Oleg Mediannikov","doi":"10.1016/j.ttbdis.2025.102597","DOIUrl":"10.1016/j.ttbdis.2025.102597","url":null,"abstract":"<div><div><em>Coxiella burnetii</em> is a worldwide zoonotic pathogen responsible for Q fever. Ticks act as both potential reservoirs and vectors of <em>C. burnetii,</em> playing a critical role in maintaining its natural transmission cycle. Nevertheless, the vector competence of ticks in transmitting <em>C. burnetii</em> remains a topic of ongoing scientific debate. This study aims to investigate the genetic diversity of <em>C. burnetii</em> in ixodid ticks from the Republic of Guinea. Ixodid ticks were collected from cattle, goats, sheep, and dogs across eight locations of the Republic of Guinea in 2023. Ticks were identified to the species level using both morphological and molecular methods. Screening for <em>C. burnetii</em> was performed using two quantitative polymerase chain reaction assays targeting the IS1111 and IS30 sequences. Positive samples were subsequently genotyped using multispacer sequence typing (MST) with 10 spacer regions. A total of 946 ticks were collected screening revealed the presence of <em>C. burnetii</em> DNA in 5.4 % (52/946) of ticks. The main tick species positive for <em>C. burnetii</em> were <em>Rhipicephalus sanguineus</em> s.l. 19.2 % (10/52), <em>Rhipicephalus microplus</em> 17.3 % (9/52) and <em>Hyalomma truncatum</em> 13.4 % (7/52). Genotyping of 38.4 % (20/52) of the <em>C. burnetii</em>-positive specimens identified five different genotypes, including four novel ones (MST 86, MST 87, MST 88, and MST 89) and one previously described genotype, MST 61. Molecular identification of the 52 ticks positive for <em>C. burnetii</em> DNA revealed 12 tick species. This study underscores the Republic of Guinea as a hotspot for <em>C. burnetii</em> genetic diversity, with novel genotypes suggesting localized evolution or cross-species transmission.</div></div>","PeriodicalId":49320,"journal":{"name":"Ticks and Tick-borne Diseases","volume":"17 1","pages":"Article 102597"},"PeriodicalIF":3.4,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145953729","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Mapping ticks (Acari: Argasidae, Ixodidae) and informing local public action: Insights from the United Kingdom Tick Surveillance Scheme (2021-2024) 绘制蜱虫（蜱螨：剑虫科，伊蚊科）并告知当地公共行动：来自英国蜱虫监测计划的见解（2021-2024）。

IF 3.4 2区医学

Ticks and Tick-borne Diseases Pub Date : 2026-01-01 Epub Date: 2026-01-06 DOI: 10.1016/j.ttbdis.2025.102579

Kayleigh M Hansford , Faye V Brown , Sarah M Biddlecombe , Jonathan Yardley , Emmanuella O Luce , Sara Gandy , Colin J Johnston , Nicola Jones , Anthony J Abbott , Beth Mackenzie , Anna Rance , Meghan-Louise Meban , Andrew J D Nelson , Christopher Williams , Dominic Mellor , Amanda Semper , Christina Petridou , Rachel Pudney , Jolyon M Medlock

{"title":"Mapping ticks (Acari: Argasidae, Ixodidae) and informing local public action: Insights from the United Kingdom Tick Surveillance Scheme (2021-2024)","authors":"Kayleigh M Hansford , Faye V Brown , Sarah M Biddlecombe , Jonathan Yardley , Emmanuella O Luce , Sara Gandy , Colin J Johnston , Nicola Jones , Anthony J Abbott , Beth Mackenzie , Anna Rance , Meghan-Louise Meban , Andrew J D Nelson , Christopher Williams , Dominic Mellor , Amanda Semper , Christina Petridou , Rachel Pudney , Jolyon M Medlock","doi":"10.1016/j.ttbdis.2025.102579","DOIUrl":"10.1016/j.ttbdis.2025.102579","url":null,"abstract":"<div><div>The Tick Surveillance Scheme (TSS) is a citizen science initiative which relies on public and professional submissions to monitor tick species distribution, seasonal exposure, and host associations across the United Kingdom (UK). During the period 2021–2024, 3182 tick records were received and 27 tick species were detected. The data confirm that <em>Ixodes ricinus</em>, the primary vector for Lyme disease and Tick-borne encephalitis, remains the most common tick in the UK. The TSS continues to detect imported tick species, underscoring the risk of novel pathogens entering the country, with new species like <em>Hyalomma excavatum</em> and <em>Rhipicephalus pulchellus</em> reported for the first time. The scheme also provides crucial evidence of non-endemic species like <em>Hyalomma marginatum</em> being found on hosts without history of foreign travel, although establishment risk is currently considered low. In addition to updated species distribution maps, a new tick-bite incidence metric has been developed and translated into a heat map for England and Wales. Updated regularly, this enables targeted public health interventions and awareness campaigns at the local authority level, providing a proxy for potential tick exposure. Tick submissions are likely underrepresented from Scotland and Northern Ireland, suggesting a need to strengthen outreach in these areas to improve data accuracy.</div></div>","PeriodicalId":49320,"journal":{"name":"Ticks and Tick-borne Diseases","volume":"17 1","pages":"Article 102579"},"PeriodicalIF":3.4,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145913801","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Response to the critique on the TerL-based PCR by Zimmermann et al. (2025) 对Zimmermann等人（2025）对基于terl的PCR的批评的回应。

IF 3.4 2区医学

Ticks and Tick-borne Diseases Pub Date : 2026-01-01 Epub Date: 2026-01-06 DOI: 10.1016/j.ttbdis.2025.102593

Jinyu Shan , Tanja Mijatovic , Louis Teulières , Martha R.J. Clokie

引用次数: 0