Journal of medical entomology最新文献_第5页

A scoping review of applied tick control research in North America: funding, implementation, and advancement. 北美应用蜱虫控制研究的范围审查：资助、实施和进展。

Journal of medical entomology Pub Date : 2024-12-31 DOI: 10.1093/jme/tjae155

Áine Lehane, Emily M Mader, Joseph D Poggi, Kaci D McCoy, Jeff Gruntmeir, Caroline T Weldon

{"title":"A scoping review of applied tick control research in North America: funding, implementation, and advancement.","authors":"Áine Lehane, Emily M Mader, Joseph D Poggi, Kaci D McCoy, Jeff Gruntmeir, Caroline T Weldon","doi":"10.1093/jme/tjae155","DOIUrl":"https://doi.org/10.1093/jme/tjae155","url":null,"abstract":"Geographic ranges of ticks and tick-borne pathogens within North America are shifting due to environmental changes and human-driven activities, with species of public health concern presenting a multifaceted risk to human health. Innovative strategies and continued collaboration to control tick populations are needed to combat this growing threat. We conducted a scoping review of the literature to describe the nature of applied tick control research conducted in North America (Canada, Mexico, and the United States) to date, with the goal of describing key concepts and identifying gaps in this research area. A total of 244 articles met our inclusion criteria and were reviewed for patterns in applied tick control authorship and funding, study location, target species, and control methodology. Most studies (83.6%) were conducted exclusively in the United States and 75% focused on ticks of public health concern, principally Amblyomma americanum (Linnaeus, Acari: Ixodidae), Dermacentor variabilis (Say, Acari: Ixodidae), Ixodes scapularis Say (Acari: Ixodidae), and Rhipicephalus sanguineus (Latreille, Acari: Ixodidae). The majority of funding was provided through US federal agencies, predominantly the Centers for Disease Control and Prevention and the United States Department of Agriculture. Ixodes scapularis was the target of over 50% of identified articles, with the majority of research conducted within 3 states in the Northeast region of the U.S. Only 8.2% of included studies evaluated integrated tick management interventions. We note gaps in tick control research regarding (i) non-Ixodes medically relevant tick species, (ii) endemic range coverage, and (iii) control methodologies evaluated.","PeriodicalId":94091,"journal":{"name":"Journal of medical entomology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142911319","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

Bernard Greenberg: a legacy in medical, veterinary, and forensic entomology. 伯纳德·格林伯格：医学、兽医和法医昆虫学的遗产。

Journal of medical entomology Pub Date : 2024-12-30 DOI: 10.1093/jme/tjae158

Rachel McNeal, Jeffrey D Wells, Jeffery K Tomberlin

引用次数: 0

Employing habitat suitability modeling to assess the distribution and envenomation potential of scorpion species in Iran. 利用生境适宜性模型评价伊朗蝎子的分布和毒化潜力。

Journal of medical entomology Pub Date : 2024-12-26 DOI: 10.1093/jme/tjae151

Mohammad Bagher Erfanian, Hossein Barahoei, Mohammad Mahdi Zeynali, Omid Mirshamsi

{"title":"Employing habitat suitability modeling to assess the distribution and envenomation potential of scorpion species in Iran.","authors":"Mohammad Bagher Erfanian, Hossein Barahoei, Mohammad Mahdi Zeynali, Omid Mirshamsi","doi":"10.1093/jme/tjae151","DOIUrl":"https://doi.org/10.1093/jme/tjae151","url":null,"abstract":"Iran is a biodiversity hotspot of scorpions with 80 recorded species. Thus, scorpion envenomation is a serious public health problem in the country. Here, we used habitat suitability modeling to assess the spatial distribution of scorpions in Iran. Only 45 species had sufficient georeferenced data. We used bioclimatic variables, soil temperature layers, and 9 modeling algorithms to perform habitat suitability modeling. We employed an ensemble approach to obtain the final models. We calculated the richness map and drew distribution maps for genera with more than 1 species. Also, we assessed the scorpions' species richness inside and outside of national parks. Finally, we created a risk map of encountering a venomous scorpion. The results showed that the highest scorpion richness is in the southern and southwestern parts of Iran, especially in the coastal areas of the Persian Gulf. We observed 3 biodiversity hotspots for scorpions that are located in the south and southwestern, central parts, and eastern parts of Iran. Except for northern parts, there is a possibility of encountering a venomous scorpion in other parts of Iran. The 3 biodiversity hotspots are also the areas with the highest chance of encountering a venomous species. We found that the hotspots are not protected and are located in areas facing land-use changes. Thus, hotspots have the highest human-scorpion conflicts. Our results provide new insight into the distribution of scorpion species in Iran. Conservation actions that ensure both human safety and species richness are essential and can be achieved by halting further land degradation in scorpion habitats and providing easy-to-understand manuals for local people.","PeriodicalId":94091,"journal":{"name":"Journal of medical entomology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142901472","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

Environmental influences on Aedes aegypti (Diptera: Culicidae) population densities across 2 urban communities on the U.S.-Mexico border. 美国与墨西哥边境两个城市社区埃及伊蚊（双翅目：Culicidae）种群密度的环境影响因素。

Journal of medical entomology Pub Date : 2024-12-26 DOI: 10.1093/jme/tjae152

Adam J Vera, Albert G Soliz, Karen R Vera, Oscar J Ortega, Soyoung Jeon, Xiaogang Su, Antonio de la Mora-Covarubbias, Philip Lavretsky, Douglas M Watts

{"title":"Environmental influences on Aedes aegypti (Diptera: Culicidae) population densities across 2 urban communities on the U.S.-Mexico border.","authors":"Adam J Vera, Albert G Soliz, Karen R Vera, Oscar J Ortega, Soyoung Jeon, Xiaogang Su, Antonio de la Mora-Covarubbias, Philip Lavretsky, Douglas M Watts","doi":"10.1093/jme/tjae152","DOIUrl":"https://doi.org/10.1093/jme/tjae152","url":null,"abstract":"The mosquito species Aedes aegypti (Linneaus) is the vector of multiple arboviruses, including dengue, Chikungunya, Zika, and yellow fever. Risk of infections associated with these arboviruses continues to expand as the geographical range of Ae. aegypti extends into temperate regions. Although Ae. aegypti is abundant along the U.S.-Mexico border, the ecology of this mosquito species in this temperate/subtropical desert is not well understood. Our study objective was to estimate the seasonal population density in 2 urban communities: Sparks, El Paso, Texas and Anapra, Ciudad Juárez, Chihuahua, Mexico. Estimates of the population density of adult Ae. aegypti were obtained by month (June to December) and across years (2016 to 2018) using gravid traps. Mosquitoes were collected inside and outside a total of 108 and 101 participating homes in Sparks and Anapra, respectively. We determined multiple environmental and climatic factors influencing annual population trends. Generally, an increase in the abundance of Ae. aegypti was associated with an increase in precipitation, moderate temperatures, and high humidity, while months with temperatures below 4.4°C led to near absence of adults. Across months, we found low densities of Ae. aegypti during June and July, followed by near 100-fold increases in abundance from August to October before rapidly decreasing to near zero in subsequent cold season months. Our study sheds light on population dynamics and response variables at the leading edge of Ae. aegypti range, which require the development of targeted vector control measures for this mosquito species in this and other regions.","PeriodicalId":94091,"journal":{"name":"Journal of medical entomology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142901473","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

Experimental crosses detect reproductive isolation among populations of Triatoma pallidipennis (Hemiptera: Reduviidae: Triatominae). 实验杂交检测白斑斑蝶（半翅目：斑鸠科：斑鸠科）种群的生殖隔离。

Journal of medical entomology Pub Date : 2024-12-23 DOI: 10.1093/jme/tjae153

Tzintli Meraz-Medina, Yunuen Grant-Guillén, José Rodrigo Mercado-Trujillo, Mauro Omar Vences-Blanco, Dévora Yajahira Ibáñez-Hernández, José Alejandro Martínez-Ibarra

{"title":"Experimental crosses detect reproductive isolation among populations of Triatoma pallidipennis (Hemiptera: Reduviidae: Triatominae).","authors":"Tzintli Meraz-Medina, Yunuen Grant-Guillén, José Rodrigo Mercado-Trujillo, Mauro Omar Vences-Blanco, Dévora Yajahira Ibáñez-Hernández, José Alejandro Martínez-Ibarra","doi":"10.1093/jme/tjae153","DOIUrl":"https://doi.org/10.1093/jme/tjae153","url":null,"abstract":"Chagas disease is one of the most important vector-borne diseases in Mexico. Triatoma pallidipennis (Stål) is one of the most epidemiologically important vector species. Despite being classified as a single species, various studies (molecular, morphometric, and biological) on populations across its distribution suggested it is composed of a group of cryptic species. This study examined reproductive isolation among 5 populations of T. pallidipennis originating from the western, southern, and central regions of Mexico to help clarify the potential existence of a cryptic species complex of T. pallidipennis in Mexico. A generation of hybrids was analyzed for fertility and fecundity. Fertility rates varied from 50% to 100% in the parental crosses and from 20% to 100% in the F1 × F1 crosses. Fecundity ranged from 1.4 to 3.2 eggs/female/day in the parental crosses, which decreased to 0.9-2.9 in the F1 × F1 crosses (except in Jalisco × Morelos). The fertility of the eggs ranged from 61.4% to 85.4% in the parental crosses, dropping to 44% to 90.1% in some F1 × F1 crosses, indicating partial reproductive isolation among these populations.","PeriodicalId":94091,"journal":{"name":"Journal of medical entomology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142883868","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

Black fly diversity and molecular detection of blood parasites in Simulium khelangense (Diptera, Simuliidae) from Laos. 老挝黑蝇（双翅目，黑蝇科）血寄生虫黑蝇多样性及分子检测。

Journal of medical entomology Pub Date : 2024-12-23 DOI: 10.1093/jme/tjae157

Bhuvadol Gomontean, Waraporn Jumpato, San Namtaku, Wannachai Wannasingha, Komgrit Wongpakam, Isara Thanee, Khamla Inkhavilay, Banchai Malavong, Pairot Pramual

{"title":"Black fly diversity and molecular detection of blood parasites in Simulium khelangense (Diptera, Simuliidae) from Laos.","authors":"Bhuvadol Gomontean, Waraporn Jumpato, San Namtaku, Wannachai Wannasingha, Komgrit Wongpakam, Isara Thanee, Khamla Inkhavilay, Banchai Malavong, Pairot Pramual","doi":"10.1093/jme/tjae157","DOIUrl":"https://doi.org/10.1093/jme/tjae157","url":null,"abstract":"Black flies (Diptera: Simuliidae) are significant pests and vectors transmitting pathogens to humans and other animals. However, knowledge of species diversity as well as their role as pests and vectors in Laos is limited, despite the country having abundant suitable lotic habitats, that is, running water. In this study, we collected wild adult black fly specimens from Laos. Both morphology and genetic data supported that they were Simulium khelangense Takaoka, Srisuka and Saeung, and therefore, a new distribution record for this species. Screening of the blood protozoa from 106 females detected Leucocytozoon (n = 7) and Trypanosoma (n = 9). Identifications of Leucocytozoon based on cytochrome b sequences in MalAvi database indicated that 5 specimens had identical sequences to those of 4 lineages (GALLUS17 [n = 2], GALLUS35 [n = 1], GALLUS37 [n = 1], and GALLUS41 [n = 1]) of unidentified species (i.e., Leucocytozoon sp.). The remaining 2 had no identical sequences but were very similar (99%) to GALLUS34 and GALLUS41 lineages. Identifications of Trypanosoma based on the small subunit rRNA indicated that all were T. avium. The results presented here further support the role of S. khelangense as a potential vector of Leucocytozoon and Trypanosoma as well as being a possible pest of domestic avian species.","PeriodicalId":94091,"journal":{"name":"Journal of medical entomology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142883792","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

Larval competition between the invasive Aedes aegypti (Diptera: Culicidae) and the Caribbean endemic Aedes mediovittatus (Diptera: Culicidae) from Puerto Rico, USA. 美国波多黎各入侵埃及伊蚊（双翅目：库蚊科）与加勒比海特有种中维伊蚊（双翅目：库蚊科）的幼虫竞争。

Journal of medical entomology Pub Date : 2024-12-21 DOI: 10.1093/jme/tjae154

Donald A Yee, Joseph A Nelsen, Nicole S Fijman, Limarie J Reyes-Torres, Jaclyn Everly, Bradley Eastmond, Barry W Alto

{"title":"Larval competition between the invasive Aedes aegypti (Diptera: Culicidae) and the Caribbean endemic Aedes mediovittatus (Diptera: Culicidae) from Puerto Rico, USA.","authors":"Donald A Yee, Joseph A Nelsen, Nicole S Fijman, Limarie J Reyes-Torres, Jaclyn Everly, Bradley Eastmond, Barry W Alto","doi":"10.1093/jme/tjae154","DOIUrl":"https://doi.org/10.1093/jme/tjae154","url":null,"abstract":"Competition between mosquito species during the larval phase is a well-established mechanism structuring container mosquito communities, with invasive species often outperforming natives. We assessed the competitive outcome between 2 species that occur on the island of Puerto Rico, the historic invasive Aedes aegypti (L.) and the endemic Aedes mediovittatus (Coquillett) (Diptera: Culicidae). Trials were conducted under intra- and interspecific densities crossed with 2 amounts of 4 different leaf types serving as detrital resources for developing larvae; leaf types were representative of either urban or rural locations. Response variables included survival, male and female mass and development time, and a composite index of population growth (λ'). We also measured tannin levels in detrital environments, a secondary metabolite that can negatively influence mosquito development and survival. The co-occurrence of Ae. aegypti and Ae. mediovittatus generally did not affect survival or population growth of Ae. mediovittatus, however the converse was not true. Specifically, Ae. aegypti suffered lower survival and lower population growth in the presence of Ae. mediovittatus compared to when it was alone. Tannin concentrations did not correspond to competitive outcomes, as the highest tannin levels occurred under the detrital conditions where mosquitoes had highest growth and survival, with no evidence of differences between urban or rural leaf types. This is the first study to quantify the competitive outcomes between these species, both of which are part of the dengue transmission cycle on the island, and our findings suggest that Ae. mediovittatus is capable of outcompeting Ae. aegypti under some resource environments.","PeriodicalId":94091,"journal":{"name":"Journal of medical entomology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142873704","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

First record of Culex pipiens (Diptera: Culicidae) in Alberta: expanding distributions and ecotype patterns in a western Canadian province. 艾伯塔省首次记录的库蚊（双翅目：库蚊科）：在加拿大西部省份的扩展分布和生态模式。

Journal of medical entomology Pub Date : 2024-12-20 DOI: 10.1093/jme/tjae150

Tiffany Pan, Michaela Seal, Hailey Shaw, Shahaanaa Mohanaraj, Gen Morinaga, Brittany Hogaboam, Michael Jenkins, Alexandra Coker, John Soghigian

{"title":"First record of Culex pipiens (Diptera: Culicidae) in Alberta: expanding distributions and ecotype patterns in a western Canadian province.","authors":"Tiffany Pan, Michaela Seal, Hailey Shaw, Shahaanaa Mohanaraj, Gen Morinaga, Brittany Hogaboam, Michael Jenkins, Alexandra Coker, John Soghigian","doi":"10.1093/jme/tjae150","DOIUrl":"https://doi.org/10.1093/jme/tjae150","url":null,"abstract":"Culex pipiens is an invasive mosquito found in temperate regions globally. It is considered among the most important disease vectors worldwide and is responsible for the transmission of a range of pathogens, including West Nile virus, avian malaria, Saint Louis encephalitis, and filarial worms. Throughout its northern temperate range, this mosquito is found in 2 ecotypes: form pipiens and form molestus. In Canada, this mosquito was previously thought restricted to the Pacific coast of British Columbia and the eastern provinces of Ontario, Quebec, and the Maritimes. Through routine mosquito surveillance and targeted trapping for Cx. pipiens, we detected this mosquito in 2 Albertan municipalities earlier than suggested by species distribution modeling based on climate change data. We confirmed the identity of putative Cx. pipiens specimens using DNA sequencing and found that alleles associated with form molestus were present, but at a low frequency compared to alleles associated with form pipiens. Furthermore, we compared the frequency of ecotype-related alleles in Alberta to elsewhere in North America and found a general trend of increased form pipiens in more northern latitudes, similar to previously reported results. We discuss our findings in the context of vector-borne disease activity in Canada, particularly West Nile virus.","PeriodicalId":94091,"journal":{"name":"Journal of medical entomology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142873698","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

High pyrethroid resistance is associated with high frequencies of 1014F and 1014S kdr mutations in Anopheles arabiensis (Diptera: Culicidae) from Ouagadougou, Burkina Faso. 布基纳法索瓦加杜古阿拉伯按蚊（双翅目：库蚊科）的1014F和1014S kdr突变频率高与拟除虫菊酯抗性高有关。

Journal of medical entomology Pub Date : 2024-12-20 DOI: 10.1093/jme/tjae135

Zephirin Somda, Nicolas Zanré, Dimitri W Wangrawa, Hyacinthe K Toé, Aboubacar Sombié, Erisha Saiki, Shinya Fukumoto, Tatsuya Sakurai, Antoine Sanon, Philip J McCall, Hirotaka Kanuka, David Weetman, Athanase Badolo

{"title":"High pyrethroid resistance is associated with high frequencies of 1014F and 1014S kdr mutations in Anopheles arabiensis (Diptera: Culicidae) from Ouagadougou, Burkina Faso.","authors":"Zephirin Somda, Nicolas Zanré, Dimitri W Wangrawa, Hyacinthe K Toé, Aboubacar Sombié, Erisha Saiki, Shinya Fukumoto, Tatsuya Sakurai, Antoine Sanon, Philip J McCall, Hirotaka Kanuka, David Weetman, Athanase Badolo","doi":"10.1093/jme/tjae135","DOIUrl":"https://doi.org/10.1093/jme/tjae135","url":null,"abstract":"Malaria remains a major public health threat in Burkina Faso, as in most sub-Saharan Africa countries. Malaria control relies mainly on long-lasting insecticide-treated nets (LLINs) and indoor residual spraying. In Burkina Faso, an escalating of insecticide resistance has been observed over the last decades. This study aimed to investigate insecticide resistance and the underlying mechanisms in Anopheles gambiae complex in Ouagadougou. Anopheles gambiae s.l. larvae were collected from gutters and ponds, in Zogona, Tampouy and Tanghin, 3 localities in Ouagadougou from July to October 2018. The larvae were reared in the laboratory to adults stage and susceptibility profile to pyrethroid, carbamate, and organophosphate insecticides was assessed using WHO tube assays. Mosquito species and mutations linked with insecticide resistance, were identified through PCR. More than 95% of the collected An. gambiae s.l. were An. arabiensis. An. arabiensis displayed high resistance to permethrin and deltamethrin, with mortalities below 30%, but was fully susceptible to bendiocarb, fenitrothion, and malathion. A high-frequency of the pyrethroid resistance-associated kdr mutation 1014F (0.81) was recorded, while the frequency of 1014S mutation (0.18) was lower. However, the carbamate and organophosphate-associated Ace-1 119S mutation was not detected. Localities and breeding site type appear to influence pyrethroid resistance in the An. arabiensis population of Ouagadougou. The high resistance to pyrethroids in An. arabiensis of urban Ouagadougou is underpinned, at least in part by high-frequency kdr mutations. This result supports the switch to next-generation LLINs, in well-established pyrethroid resistance zones of Burkina Faso including Ouagadougout.","PeriodicalId":94091,"journal":{"name":"Journal of medical entomology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142873701","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

Molecular and niche modeling approaches to identify potential amplifying hosts for an emerging tick-borne pathogen, Rickettsia rickettsii subsp. californica, the causative agent of Pacific Coast tick fever. 用分子和生态位建模方法确定一种新出现的蜱传病原体--太平洋沿岸蜱热的病原体立克次体加利福尼亚亚种--的潜在扩增宿主。

Journal of medical entomology Pub Date : 2024-12-17 DOI: 10.1093/jme/tjae147

Vincent Mai, Robert A Boria, Kerry Padgett, Michelle S Koo, Megan E M Saunders, Sarah Billeter, Javier Asin, Savannah Shooter, Maria Zambrano, Sandor Karpathy, Christopher D Paddock, Andrea Swei

{"title":"Molecular and niche modeling approaches to identify potential amplifying hosts for an emerging tick-borne pathogen, Rickettsia rickettsii subsp. californica, the causative agent of Pacific Coast tick fever.","authors":"Vincent Mai, Robert A Boria, Kerry Padgett, Michelle S Koo, Megan E M Saunders, Sarah Billeter, Javier Asin, Savannah Shooter, Maria Zambrano, Sandor Karpathy, Christopher D Paddock, Andrea Swei","doi":"10.1093/jme/tjae147","DOIUrl":"https://doi.org/10.1093/jme/tjae147","url":null,"abstract":"Pacific Coast tick fever is a recently described zoonotic disease in California caused by a spotted fever group rickettsia, Rickettsia rickettsii subsp. californica (formerly Rickettsia 364D) and transmitted by the Pacific Coast tick, Dermacentor occidentalis. Like many emerging vector-borne diseases, knowledge regarding the transmission cycle, contribution from potential amplifying hosts, and geographic distribution of R. rickettsii californica is limited. We paired molecular analysis with comparative spatial niche modeling to identify vertebrate hosts potentially involved in the transmission cycle of this pathogen. We identified R. rickettsii californica DNA in three mammal species (Otospermophilus beecheyi, Lepus californicus, and Sylvilagus audubonii). This is the first record of R. rickettsii californica detected in mammals and may indicate potential amplifying hosts for this human pathogen. Species niche modeling of uninfected and infected D. occidentalis identified areas of high suitability along the coast and Sierra Nevada foothills of California. These findings support the hypothesis that amplifying host(s) may support higher infection prevalence in the infected tick regions compared to other parts of the tick's range. Potential host species distribution models (SDMs) were constructed from museum records and niche overlap statistics were used to compare habitat suitability with R. rickettsii californica-infected tick SDMs. We found higher than null overlap of infected ticks with California ground squirrels (O. beecheyii) and trending, but nonsignificant, overlap with two lagomorph species. Pairing molecular and niche modeling may be a useful approach to identify species that are involved in the maintenance of emerging tick-borne zoonoses.","PeriodicalId":94091,"journal":{"name":"Journal of medical entomology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142840702","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