Journal of medical entomology最新文献_第2页

Target site mutations and metabolic detoxification of insecticides in continental populations of Cimex lectularius and Cimex hemipterus (Hemiptera: Cimicidae). 瓢虫和半翅瓢虫（半翅目：瓢虫科）大陆种群杀虫剂靶位突变及代谢解毒作用。

Journal of medical entomology Pub Date : 2025-01-13 DOI: 10.1093/jme/tjae118

Julián Felipe Porras-Villamil, Immo A Hansen, Lee A Uranga, Matthew Pinch, Coby Schal, Sandra Sáez-Durán, Rubén Bueno-Marí, María Trelis, Màrius V Fuentes, Sudip Gaire, Alvaro Romero

{"title":"Target site mutations and metabolic detoxification of insecticides in continental populations of Cimex lectularius and Cimex hemipterus (Hemiptera: Cimicidae).","authors":"Julián Felipe Porras-Villamil, Immo A Hansen, Lee A Uranga, Matthew Pinch, Coby Schal, Sandra Sáez-Durán, Rubén Bueno-Marí, María Trelis, Màrius V Fuentes, Sudip Gaire, Alvaro Romero","doi":"10.1093/jme/tjae118","DOIUrl":"https://doi.org/10.1093/jme/tjae118","url":null,"abstract":"In recent decades, the common and the tropical bed bugs have experienced a resurgence in many parts of the world. The evolution of insecticide resistance in bed bug populations is considered a significant factor contributing to this resurgence. We analyzed samples of Cimex lectularius L. and Cimex hemipterus (F.) from Europe (Spain 41, Switzerland 2, the Czech Republic 1), Asia (Hong Kong 34), North America (USA 14, Mexico 3), and South America (Colombia 3) to assess the prevalence and mechanisms of insecticide resistance. We identified specimens morphologically and barcoded them by sequencing the mitochondrial Cytochrome c oxidase subunit I (COI) and the 16S ribosomal RNA (16S rRNA) genes. Additionally, we screened segments of the voltage-gated sodium channel (VGSC) and the nicotinic acetylcholine receptor (nAChR) genes for point mutations associated with insecticide resistance and measured the activity of detoxifying enzymes. All samples from North America and Europe were identified as C. lectularius, whereas specimens from Hong Kong were C. hemipterus. Out of 64 C. lectularius samples tested for knockdown resistance (kdr) mutations, 90.6% contained at least 1 known mutation. All 35 C. hemipterus samples exhibited kdr mutations. A new mutation was identified in the pyrethroid target site in both common (F1524C) and tropical (F1450C) bed bugs. No resistance-associated mutations in the nAChR gene were found. Several populations that exhibited kdr mutations also showed elevated activity of detoxifying enzymes. The high frequency of kdr-associated mutations in bed bug populations from Spain and Hong Kong limits the efficacy of pyrethroids for their control.","PeriodicalId":94091,"journal":{"name":"Journal of medical entomology","volume":"62 1","pages":"130-145"},"PeriodicalIF":0.0,"publicationDate":"2025-01-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143018978","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","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 characterization of a novel Pavlovskyella (Acari: Argasidae) from Chile, parasite of the culpeo fox (Lycalopex culpaeus). 来自智利的新型 Pavlovskyella（蛔虫：蛔虫科）的鉴定和特征描述，它是 culpeo 狐（Lycalopex culpaeus）的寄生虫。

Journal of medical entomology Pub Date : 2025-01-13 DOI: 10.1093/jme/tjae136

Sebastián Muñoz-Leal, Alexander R Kneubehl, Karen Ardiles, Catalina Parragué-Migone, Ignacio Troncoso-Toro, Pablo Oyarzún-Ruiz, Job E Lopez

{"title":"Identification and characterization of a novel Pavlovskyella (Acari: Argasidae) from Chile, parasite of the culpeo fox (Lycalopex culpaeus).","authors":"Sebastián Muñoz-Leal, Alexander R Kneubehl, Karen Ardiles, Catalina Parragué-Migone, Ignacio Troncoso-Toro, Pablo Oyarzún-Ruiz, Job E Lopez","doi":"10.1093/jme/tjae136","DOIUrl":"10.1093/jme/tjae136","url":null,"abstract":"Soft ticks (Argasidae) of the subgenus Pavlovskyella Pospelova-Shtrom are worldwide distributed parasites of medical importance. However, the systematics of the subgenus are currently under debate because genetic data shows that the group is paraphyletic. Meanwhile, species of Pavlovskyella continue to be discovered. In this study a novel species of the subgenus is described from specimens collected on a fox in central Chile. The larva of this new species differentiates from other Pavlovskyella spp. by having the following combination of characters: subpyriform dorsal plate; 15 pairs of setae, 7 anterolateral, 3 central, and 5 posterolateral, and hypostome with denticles in the distal third. Nymphs and adults of the species lack cheeks, eyes or bulging structures on the flank, but exhibit dorsoventral grooves, and humps on tarsi I, II, and III. Moreover, a patch of glabrous integument appears on the distal portion of coxal folds. A phylogenetic analysis using the mitogenome indicates a monophyletic group composed by Ornithodoros (Pavlovskyella) brasiliensis Aragão, Ornithodoros (Pavlovskyella) furcosus Neumann, Ornithodoros (Pavlovskyella) improvisus Muñoz-Leal & Venzal, and Ornithodoros (Pavlovskyella) rostratus Aragão. Interestingly, a phylogeny using 18S-28S rDNA sequences shows that South American Pavlovskyella spp. are paraphyletic, as depicted in previous studies. Adding species of the subgenus from the Neotropical region to phylogenetic analyses could aid to solve this paraphyly. Furthermore, this is the fifth species of Pavlovskyella described in South America, and the second in Chile.","PeriodicalId":94091,"journal":{"name":"Journal of medical entomology","volume":" ","pages":"78-88"},"PeriodicalIF":0.0,"publicationDate":"2025-01-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142570880","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Correction to: Utilization of a zoo for mosquito (Diptera: Culicidae) diversity analysis, arboviral surveillance, and blood feeding patterns. 更正：利用动物园进行蚊子（双翅目：Culicidae）多样性分析、虫媒病毒监测和血液喂养模式。

Journal of medical entomology Pub Date : 2025-01-13 DOI: 10.1093/jme/tjae139

引用次数: 0

Dengue-mediated changes in the vectorial capacity of Aedes aegypti (Diptera: Culicidae): manipulation of transmission or infection by-product? 登革热介导的埃及伊蚊（双翅目：Culicidae）媒介能力的变化：传播操纵还是感染副产品？

Journal of medical entomology Pub Date : 2025-01-13 DOI: 10.1093/jme/tjae134

Ioana Mateescu, Sebastian Lequime

{"title":"Dengue-mediated changes in the vectorial capacity of Aedes aegypti (Diptera: Culicidae): manipulation of transmission or infection by-product?","authors":"Ioana Mateescu, Sebastian Lequime","doi":"10.1093/jme/tjae134","DOIUrl":"10.1093/jme/tjae134","url":null,"abstract":"An arthropod's vectorial capacity summarizes its disease transmission potential. Life-history traits, such as fecundity or survival, and behavioral traits, such as locomotor activity, host-seeking and feeding behavior, are important components of vectorial capacity. Studies have shown that mosquito-borne pathogens may alter important vectorial capacity traits of their mosquito vectors, thus directly impacting their transmission and epidemic potential. Here, we compile and discuss the evidence supporting dengue-mediated changes in the yellow fever mosquito Aedes aegypti (L.), its primary vector, and evaluate whether the observed effects represent an evolved trait manipulation with epidemiological implications. Dengue infection appears to manipulate essential traits that facilitate vector-host contact, such as locomotor activity, host-seeking, and feeding behavior, but the underlying mechanisms are still not understood. Conversely, life-history traits relevant to vector population dynamics, such as survival, oviposition, and fecundity, appear to be negatively impacted by dengue virus. Overall, any detrimental effects on life-history traits may be a negligible cost derived from the virulence that dengue has evolved to facilitate its transmission by manipulating Ae. aegypti behavior and feeding performance. However, methodological disparities among studies render comparisons difficult and limit the ability to reach well-supported conclusions. This highlights the need for more standardized methods for the research into changes in virus-mediated traits. Eventually, we argue that the effects on life-history traits and behavior outlined here must be considered when assessing the epidemiological impact of dengue or other arbovirus-vector-host interactions.","PeriodicalId":94091,"journal":{"name":"Journal of medical entomology","volume":" ","pages":"19-28"},"PeriodicalIF":0.0,"publicationDate":"2025-01-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11735268/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142515432","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Anopheles inthanonensis, formal name for An. baileyi species D of the Baileyi Complex (Diptera: Culicidae: Anophelinae) in Thailand. Anopheles inthanonensis，泰国 Baileyi Complex（双翅目：蝇科：疟原虫属）中 An. baileyi 种 D 的正式名称。

Journal of medical entomology Pub Date : 2025-01-13 DOI: 10.1093/jme/tjae142

Thanari Phanitchakun, Parinya Wilai, Jassada Saingamsook, Ralph E Harbach, Pradya Somboon

引用次数: 0

Seasonal fluctuation of insecticide resistance mutation frequencies in field populations of Anopheles and Culex species in Korea. 韩国按蚊和库蚊田间种群杀虫剂抗性突变频率的季节波动。

Journal of medical entomology Pub Date : 2025-01-13 DOI: 10.1093/jme/tjae140

Do Eun Lee, Heung-Chul Kim, Terry A Klein, Si Hyeock Lee, Ju Hyeon Kim

{"title":"Seasonal fluctuation of insecticide resistance mutation frequencies in field populations of Anopheles and Culex species in Korea.","authors":"Do Eun Lee, Heung-Chul Kim, Terry A Klein, Si Hyeock Lee, Ju Hyeon Kim","doi":"10.1093/jme/tjae140","DOIUrl":"10.1093/jme/tjae140","url":null,"abstract":"Members of the Anopheles Hyrcanus Group, Culex pipiens complex, and Culex tritaeniorhynchus are prevalent vector species in the Republic of Korea (ROK), transmitting Plasmodium vivax and various arboviruses. Extensive use of insecticides to control these mosquitoes has led to insecticide resistance. In this study, we monitored 3 target site mutations associated with insecticide resistance (kdr for pyrethroid resistance, ace1 for organophosphate resistance, and rdl for phenylpyrazole resistance) in these mosquito groups over four consecutive years to understand the seasonal dynamics of resistance in different areas with distinct ecological characteristics. In the Anopheles Hyrcanus Group, the frequencies of kdr and ace1 mutations exhibited seasonal fluctuations in an urban-rural complex area (Humphreys US Army Garrison) (hereafter Humphreys), suggesting an overwintering fitness cost, whereas the rdl mutation frequencies remained constant at nearly saturated levels. These patterns were less clear in rural areas (the demilitarized zone separating Korea), indicating area-specific profiles related to different insecticide usage patterns. The kdr and rdl mutation frequencies associated with the Cx. pipiens complex were relatively constant, but varied by the collection area, with higher rdl frequency in Humphreys and higher kdr frequency in Yongsan, a metropolitan area, suggesting different selection pressures. Overall resistance mutation frequencies were highest in Cx. tritaeniorhynchus, with ace1 and rdl mutations being seasonally saturated, while the kdr mutation frequency varied over time. Our findings demonstrate species- or group-specific seasonal and regional dynamic patterns of insecticide resistance, presenting the need for targeted control strategies and further improving the management of mosquito-borne diseases in the ROK.","PeriodicalId":94091,"journal":{"name":"Journal of medical entomology","volume":" ","pages":"155-163"},"PeriodicalIF":0.0,"publicationDate":"2025-01-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142824985","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Highlights of veterinary entomology, 2023: beyond the barnyard: exploring the wild side of veterinary entomology. 2023 年兽医昆虫学要点：超越畜栏：探索兽医昆虫学的野性一面。

Journal of medical entomology Pub Date : 2025-01-13 DOI: 10.1093/jme/tjae131

Erika T Machtinger

引用次数: 0

Published questionnaires and clinical observation surveys on traumatic sheep myiasis: optimizing survey design and the integration of these two survey methods. 关于外伤性羊肌炎的已发布问卷和临床观察调查：优化调查设计并整合这两种调查方法。

Journal of medical entomology Pub Date : 2025-01-13 DOI: 10.1093/jme/tjae132

Tharindu Bandara Bambaradeniya, Paola Annarosa Magni, Ian Robert Dadour

引用次数: 0

Ticks and hemoplasma screening in dromedary camels (Camelus dromedarius) from Somalia. 索马里单峰骆驼（Camelus dromedarius）的蜱虫和血浆筛查。

Journal of medical entomology Pub Date : 2025-01-13 DOI: 10.1093/jme/tjae138

Flávia C M Collere, Larissa D R Ferrari, Aamir M Osman, Ahmed A Hassan-Kadle, Mohamed A Shair, Vanessa S Coradi, Abdalla M Ibrahim, Thiago F Martins, Abdulkarim A Yusuf, Ivan R de Barros-Filho, Rogério R Lange, Marcos R André, Thállitha S W J Vieira, Rosangela Z Machado, Rafael F C Vieira

{"title":"Ticks and hemoplasma screening in dromedary camels (Camelus dromedarius) from Somalia.","authors":"Flávia C M Collere, Larissa D R Ferrari, Aamir M Osman, Ahmed A Hassan-Kadle, Mohamed A Shair, Vanessa S Coradi, Abdalla M Ibrahim, Thiago F Martins, Abdulkarim A Yusuf, Ivan R de Barros-Filho, Rogério R Lange, Marcos R André, Thállitha S W J Vieira, Rosangela Z Machado, Rafael F C Vieira","doi":"10.1093/jme/tjae138","DOIUrl":"10.1093/jme/tjae138","url":null,"abstract":"Hemotropic mycoplasmas (hemoplasmas) are small pleomorphic bacteria that parasitize the surface of red blood cells of mammals. Hemoplasmas have been described in different species from the Camelidae Family, such as llamas and alpacas (South American camelids), but data on dromedary camels (Camelus dromedarius) are limited to a few reports. Somalia has one of the world's largest dromedary camel populations, and studies on hemoplasmas and tick-borne pathogens are lacking. Accordingly, this study aimed to screen dromedaries from Somalia for hemoplasmas by PCR-based assays. A total of 155 dromedary camel blood samples from 2 different areas of Mogadishu (n = 104) and the Lower Shabelle Region (n = 51) of the country were collected. All blood DNA samples were screened for hemoplasmas using a SYBR Green Universal Real-Time PCR (qPCR), nested PCR (nPCR), and conventional PCR (cPCR) assays targeting the 16S rRNA gene of hemoplasmas. Five out of 155 animals (3.23%; 95% confidence interval [CI]: 1.39-7.33%) were positive for hemoplasmas. A total of 346 (228 M, 117 F, and 1 nymph) ticks were collected from 79/155 (50.9%; 95% CI: 42.8-59.1%) dromedary camels with a mean of 4.4 ticks per animal. Ticks were identified as Rhipicephalus pulchellus (174/346; 50.3%), Hyalomma dromedarii (103/346; 29.8%), Hyalomma rufipes (35/346; 10.1%), Hyalomma marginatum (16/346; 4.6%), Rhipicephalus humeralis (14/346; 4.0%), Amblyomma lepidum (2/346; 0.6%), Amblyomma gemma (1/346; 0.3%), and Ornithodoros sp. (1/185; 0.5). This is the first study on the molecular screening for hemoplasmas in dromedary camels from Somalia and the first report of A. lepidum and R. humeralis in Somali dromedary camels.","PeriodicalId":94091,"journal":{"name":"Journal of medical entomology","volume":" ","pages":"174-180"},"PeriodicalIF":0.0,"publicationDate":"2025-01-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142568226","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Responses of juvenile blacklegged ticks (Acari: Ixodidae) to hosts of varying quality. 黑脚蜱幼虫（Acari: Ixodidae）对不同质量宿主的反应。

Journal of medical entomology Pub Date : 2025-01-13 DOI: 10.1093/jme/tjae103

Emily S Burton, Richard S Ostfeld, Jesse L Brunner

{"title":"Responses of juvenile blacklegged ticks (Acari: Ixodidae) to hosts of varying quality.","authors":"Emily S Burton, Richard S Ostfeld, Jesse L Brunner","doi":"10.1093/jme/tjae103","DOIUrl":"10.1093/jme/tjae103","url":null,"abstract":"Blacklegged ticks (Ixodes scapularis) are the most medically and economically important vectors in North America. Each of their 3 life stages requires a blood meal from one of many potential host species, during which they can acquire or transmit pathogens. Host species, however, vary tremendously in their quality for ticks, as measured by differences in feeding and molting success. There should be clear fitness benefits for ticks that preferentially feed upon high-quality hosts (e.g., white-footed mice, Peromyscus leucopus), or at least avoid feeding on very low-quality hosts (e.g., Virginia opossums, Didelphis virginiana). Indeed, laboratory experiments have found some evidence of host preferences in I. scapularis; but these involve presenting ticks with hosts simultaneously and measuring movement towards hosts on a horizontal plane. In nature, however, host-seeking ticks encounter hosts sequentially and their movements are principally in a vertical plane. Here, we present the results of a study in which we measured the vertical movements of host-seeking juvenile blacklegged ticks before and after a host (P. leucopus, Tamias striatus, Sciurus carolinensis, or D. virginiana) was present, and whether the strength of their responses varies with host quality. We found ticks did not measurably alter the speed of their vertical movement in the presence of any hosts, regardless of host quality. Both larvae and nymphs quested slightly higher in the presence of hosts, but this did not vary by host species. These results call into question the existence of active host preferences, at least in this stage of the host-seeking process.","PeriodicalId":94091,"journal":{"name":"Journal of medical entomology","volume":" ","pages":"164-173"},"PeriodicalIF":0.0,"publicationDate":"2025-01-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142083005","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0