journal
https://read.qxmd.com/read/38427792/measuring-insecticide-resistance-in-a-vacuum-exploring-next-steps-to-link-resistance-data-with-mosquito-control-efficacy
#1
JOURNAL ARTICLE
Áine Lehane, Casey Parker-Crockett, Edmund Norris, Sarah S Wheeler, Laura C Harrington
Insecticide resistance is a great challenge facing mosquito operational control agencies across the United States, where few active ingredients with unique modes of action are available for use, increasing resistance pressure and further hampering resistance management strategies. Emergence and expansion of insecticide resistance in mosquitoes can be detected by resistance monitoring programs; however, there are gaps in our knowledge regarding the link between resistance bioassay results and operational control outcomes...
March 1, 2024: Journal of Medical Entomology
https://read.qxmd.com/read/38417093/screening-and-identification-of-persistent-viruses-in-cell-lines-derived-from-medically-important-arthropods
#2
JOURNAL ARTICLE
Ryo Matsumura, Daisuke Kobayashi, Astri Nur Faizah, Toshinori Sasaki, Kyo Itoyama, Haruhiko Isawa
Arthropod-derived cell lines serve as crucial tools for studying arthropod-borne viruses (arboviruses). However, it has recently come to light that certain cell lines harbor persistent infections of arthropod-specific viruses, which do not cause any apparent cytopathic effects. Moreover, some of these persistent viral infections either inhibit or promote the growth of arboviruses. Therefore, it is of utmost importance to identify the presence of such persistent viruses and understand their impact on arboviral infections...
February 28, 2024: Journal of Medical Entomology
https://read.qxmd.com/read/38412423/five-human-pathogens-detected-by-tick-surveillance-in-new-york-city-parks-2014-2015
#3
JOURNAL ARTICLE
Waheed Bajwa, Ashley Kennedy, Zachary Vincent, Garrett Heck, Shamim Riaj, Zahir Shah, Kamesan Kanapathipillai, Cory Casal, Scott Haynes, Hannah Cornman, Andrea Egizi, Ellen Stromdahl, Robyn Nadolny
A total of 2,504 ticks of 5 species (Ixodes scapularis, Dermacentor variabilis, Amblyomma americanum, Haemaphysalis leporispalustris, and H. longicornis) were collected over 2 yr (2014-2015) in New York City parks. Specimens were collected via tick-dragging, identified to species, and tested for pathogens of human diseases. The causative agents of 5 human diseases (Lyme borreliosis, ehrlichiosis, babesiosis, anaplasmosis, and Rocky Mountain spotted fever) were detected in a subset of samples. Results of this surveillance effort further illustrate that risk of tick-borne disease is considerable even in parks located adjacent to densely populated areas...
February 27, 2024: Journal of Medical Entomology
https://read.qxmd.com/read/38412407/earliest-records-of-the-asian-longhorned-tick-acari-ixodidae-in-staten-island-new-york-and-subsequent-population-establishment-with-a-review-of-its-potential-medical-and-veterinary-importance-in-the-united-states
#4
JOURNAL ARTICLE
Waheed Bajwa, Ashley Kennedy, Zachary Vincent, Garrett Heck, Shamim Riaj, Zahir Shah, Leonid Tsynman, Cory Casal, Scott Haynes, Hannah Cornman, Andrea Egizi, Ellen Stromdahl, Robyn Nadolny
Three Asian longhorned ticks (Haemaphysalis longicornis) were collected on Staten Island, Richmond County, New York, in 2014-2015 as part of a tick-borne disease surveillance program conducted by the New York City Department of Health and Mental Hygiene and the Defense Centers of Public Health - Aberdeen Tick-Borne Disease Laboratory. These records mark the earliest known occurrence of H. longicornis in New York State outside of quarantine areas, predating previously reported detections by several years. Robust populations of H...
February 27, 2024: Journal of Medical Entomology
https://read.qxmd.com/read/38408183/rickettsia-species-identified-in-adult-host-seeking-dermacentor-occidentalis-acari-ixodidae-from-baja-california-mexico-and-oregon-and-washington-united-states
#5
JOURNAL ARTICLE
Christopher D Paddock, Maria L Zambrano, James R Clover, Stephen Ladd-Wilson, Elizabeth A Dykstra, Amy Salamone, David Kangiser, Bryan N Ayres, Savannah L Shooter, Sandor E Karpathy, Anne M Kjemtrup, Lorenza Beati, Michael L Levin, Robert S Lane, Oscar E Zazueta
The Pacific Coast tick (Dermacentor occidentalis Marx, 1892) is a frequently encountered and commonly reported human-biting tick species that has been recorded from most of California and parts of southwestern Oregon, southcentral Washington, and northwestern Mexico. Although previous investigators have surveyed populations of D. occidentalis for the presence of Rickettsia species across several regions of California, populations of this tick have not been surveyed heretofore for rickettsiae from Baja California, Oregon, or Washington...
February 26, 2024: Journal of Medical Entomology
https://read.qxmd.com/read/38408180/noninvasive-detection-of-zika-virus-in-mosquito-excreta-sampled-from-wild-mosquito-populations-in-french-guiana
#6
JOURNAL ARTICLE
Amandine Guidez, Albin Fontaine, Léna Yousfi, Sara Moutailler, Romuald Carinci, Jean Issaly, Pascal Gaborit, Arnaud Cannet, Franck de Laval, Séverine Matheus, Dominique Rousset, Isabelle Dusfour, Romain Girod, Sébastien Briolant
Arboviruses can be difficult to detect in the field due to relatively low prevalence in mosquito populations. The discovery that infected mosquitoes can release viruses in both their saliva and excreta gave rise to low-cost methods for the detection of arboviruses during entomological surveillance. We implemented both saliva and excreta-based entomological surveillance during the emergence of Zika virus (ZIKV) in French Guiana in 2016 by trapping mosquitoes around households of symptomatic cases with confirmed ZIKV infection...
February 26, 2024: Journal of Medical Entomology
https://read.qxmd.com/read/38408179/life-history-traits-of-aedes-aegypti-linnaeus-distributed-across-a-latitudinal-range-of-23-%C3%A2-n-6-%C3%A2-s
#7
JOURNAL ARTICLE
Kok-Boon Neoh, Lee-Jin Bong, Christina Natalina Silalahi, Amonrat Panthawong, Theeraphap Chareonviriyaphap, Intan Ahmad
The growth and associated traits of Aedes aegypti (L.) mosquitoes may adapt and evolve in response to the costs associated with body size in relation to latitudinal variation. We analyzed the life-history traits and energy reserves of field-collected mosquitoes from Taiwan, Thailand, and Indonesia along a latitudinal range spanning from 23°N to 6°S. A U-shaped relationship between body size and latitude was observed. Our study demonstrated the role of latitudinal temperature variations in determining the body size patterns of Ae...
February 26, 2024: Journal of Medical Entomology
https://read.qxmd.com/read/38408081/morphological-changes-of-larvae-and-pupae-of-lucilia-sericata-diptera-calliphoridae-reared-at-two-temperatures-and-on-three-food-types
#8
JOURNAL ARTICLE
Tharindu Bandara Bambaradeniya, Paola Annarosa Magni, Ian Robert Dadour
Determining the minimum postmortem interval (minPMI) from an entomological perspective relies mainly on development data recorded for various species of flies collected from a crime scene or suspicious death. This study focused on the larval and pupal development of Lucilia sericata (Meigen), with an emphasis on the changes of the external morphology of the puparium and its pupal content throughout the duration of metamorphosis. Colonies of L. sericata were reared on 3 types of swine tissue (skeletal muscle, liver tissue, and heart tissue) at 2 different temperature regimes; 24 ± 1 °C and 30 ± 1 °C...
February 26, 2024: Journal of Medical Entomology
https://read.qxmd.com/read/38402515/finding-unveiled-culex-thalassius-diptera-culicidae-a-new-mosquito-species-emerges-in-the-cabo-verde-archipelago
#9
JOURNAL ARTICLE
Adéritow Augusto Lopes Macedo Gonçalves, Luís Filipe Vieira da Silva Lopes, Davidson Daniel Sousa Monteiro, Aires Januário Fernandes da Moura, Carla Alexandra Gama Carrilho da Costa Sousa, Silvânia da Veiga Leal
Mosquito-borne diseases can pose significant burdens. In many countries, they pose a risk to national economies and the well-being of humans and animals. To mitigate this, mosquito surveillance is crucial to assess the real and potential transmission of mosquito-borne diseases. Between 2020 and 2023, mosquito larvae were collected from both indoor and outdoor breeding sites in urban and rural areas of 4 municipalities of Santiago and Boavista Islands in Cabo Verde. Mosquitoes were identified morphologically and by polymerase chain reaction-based techniques that targeted the mitochondrial cytochrome C oxidase subunit I sequence...
February 25, 2024: Journal of Medical Entomology
https://read.qxmd.com/read/38394375/methods-of-sampling-malaria-vectors-and-their-reliability-in-estimating-entomological-indices-in-africa
#10
JOURNAL ARTICLE
Teshome Degefa, Delenasaw Yewhalaw, Guiyun Yan
In efforts to intensify malaria control through vector control and hasten the progress towards elimination, the impact of control interventions needs to be evaluated. This requires sampling vector population using appropriate trapping methods. The aim of this article is to critically review methods of sampling malaria vectors and their reliability in estimating entomological indicators of malaria transmission in Africa. The standard methods are human landing catch (HLC), pyrethrum spray catch, and pit shelter for sampling host-seeking, indoor resting, and outdoor resting malaria vectors, respectively...
February 23, 2024: Journal of Medical Entomology
https://read.qxmd.com/read/38387018/composition-and-transstadial-retention-of-the-salivary-glands-in-ornithodoros-hermsi-acari-argasidae
#11
JOURNAL ARTICLE
Tom G Schwan, Elizabeth R Fischer, Daniel Long
Following several days of blood feeding by larval and nymphal ixodid (hard) ticks, the salivary glands degenerate and are completely replaced in the next life stage. Yet, what happens during the molt of immature argasid (soft) ticks after their rapid and small bloodmeal has remained a mystery. Multiple studies of nymphal Ornithodoros hermsi Wheeler (Acari: Argasidae) ticks infected with the relapsing fever spirochete Borrelia hermsii suggested the salivary glands in these ticks may not disintegrate after feeding...
February 22, 2024: Journal of Medical Entomology
https://read.qxmd.com/read/38387012/characterizing-the-seasonal-abundance-and-reproductive-activity-of-overwintering-anopheles-diptera-culicidae-mosquitoes
#12
JOURNAL ARTICLE
Hannah Dehus, Alden Siperstein, Laura W Pomeroy, Megan E Meuti
In temperate regions of the United States, female Anopheles mosquitoes respond to low temperatures and short photoperiods by entering an overwintering dormancy or diapause. Diapause in Anopheles results in reduced frequency of blood-feeding and reproductive arrest, indicating a period when pathogen transmission by these mosquitoes is unlikely. However, it is unclear precisely how late into the fall and how early in the spring these mosquitoes are biting, reproducing, and potentially transmitting pathogens. This is further complicated by the lack of clear markers of diapause in Anopheles (e...
February 22, 2024: Journal of Medical Entomology
https://read.qxmd.com/read/38382055/in-vitro-comparison-of-two-food-choice-methodologies-for-necrophagous-species-of-the-genus-thanatophilus-coleoptera-staphylinidae-silphinae
#13
JOURNAL ARTICLE
Jakub Kadlec, Pavel Jakubec, Petr Šípek
To accurately model the food webs, we need to acquire precise data on food ecology of the interacting species. This allows better understanding of the trophic interactions and for the necrophagous species this information could be used in medico-legal investigations. For this reason, we recently proposed standardized laboratory methodology to assess the foraging strategies based on parallel testing of 2 food items (meat, dead larvae) (Jakubec et al. 2021). The original methodology had 2 shortcomings. It was not suited for testing living larvae, which could prove predatory behavior of the species...
February 21, 2024: Journal of Medical Entomology
https://read.qxmd.com/read/38381594/using-artificial-odors-to-optimize-attractiveness-of-host-decoy-traps-to-malaria-vectors
#14
JOURNAL ARTICLE
Romaric Akoton, Simon P Sawadogo, Eric Tossou, Achille S Nikiema, Genevieve Tchigossou, Pierre M Sovegnon, Luc Djogbenou, Francis Zeukeng, Frances M Hawkes, Rock K Dabire, Rousseau Djouaka, Gabriella Gibson
Malaria vector surveillance tools often incorporate features of hosts that are attractive to blood-seeking females. The recently developed host decoy trap (HDT) combines visual, thermal, and olfactory stimuli associated with human hosts and has shown great efficacy in terms of collecting malaria vectors. Synthetic odors and yeast-produced carbon dioxide (CO2) could prove useful by mimicking the human odors currently used in HDTs and provide standardized and easy-to-use olfactory attractants. The objective of this study was to test the attractiveness of various olfactory attractant cues in HDTs to capture malaria vectors...
February 21, 2024: Journal of Medical Entomology
https://read.qxmd.com/read/38381589/experimental-demonstration-of-the-transmission-of-spiroplasma-between-different-arthropod-taxa
#15
JOURNAL ARTICLE
Shohei Ogata, Naoki Hayashi, Yuki Eshita, Yasuha Nagasawa, Nariaki Nonaka, Ryo Nakao
Spiroplasma (Mycoplasmatales: Spiroplasmataceae) is one of the most widely distributed symbionts of arthropods. Spiroplasma species can infect their hosts via vertical or horizontal transmission. However, the mode of transmission of Spiroplasma between different arthropod taxa has not been elucidated. In this study, we investigated the potential for the transmission of Spiroplasma to non-native arthropod species, using 2 Spiroplasma spp. isolated from ticks, namely Spiroplasma ixodetis and Spiroplasma mirum, and 3 species of mosquito laboratory colonies, namely Aedes albopictus, Aedes aegypti, and Culex pipiens pallens (Diptera: Culicidae)...
February 21, 2024: Journal of Medical Entomology
https://read.qxmd.com/read/38381588/highly-abundant-bacteria-in-the-gut-of-triatoma-dimidiata-hemiptera-reduviidae-can-inhibit-the-growth-of-trypanosoma-cruzi-kinetoplastea-trypanosomatidae
#16
JOURNAL ARTICLE
Juan Carlos Cambronero-Heinrichs, Diego Rojas-Gätjens, Mónica Baizán, Johan Alvarado-Ocampo, Keilor Rojas-Jimenez, Randall Loaiza, Max Chavarría, Ólger Calderón-Arguedas, Adriana Troyo
Chagas disease, caused by the protozoan Trypanosoma cruzi, is a zoonosis primarily found in rural areas of Latin America. It is considered a neglected tropical disease, and Triatoma dimidiata is the main vector of the parasite in Central America. Despite efforts, Chagas disease continues to be a public health concern, and vector control remains a primary tool to reduce transmission. In this study, we tested the hypothesis that highly abundant bacteria in the gut of T. dimidiata inhibit the growth of T. cruzi...
February 21, 2024: Journal of Medical Entomology
https://read.qxmd.com/read/38373261/ecological-interactions-of-triatoma-sanguisuga-hemiptera-reduviidae-and-risk-for-human-infection-with-trypanosoma-cruzi-kinetoplastida-trypanosomatidae-in-illinois-and-louisiana
#17
JOURNAL ARTICLE
Eric Dumonteil, Weihong Tu, F Agustín Jiménez, Claudia Herrera
Triatoma sanguisuga (Leconte) is one of the most widely distributed kissing bugs in the United States, associated with an extensive zoonotic circulation of Trypanosoma cruzi, the agent of Chagas disease, in a large part of the country. However, the actual risk for human infection in the United States is poorly understood. Here, we further assessed the ecology of T. sanguisuga bugs collected in residents' houses in Illinois and Louisiana, using a metagenomic approach to identify their blood-feeding sources, T...
February 19, 2024: Journal of Medical Entomology
https://read.qxmd.com/read/38373248/highlights-of-veterinary-entomology-2022
#18
JOURNAL ARTICLE
Caleb B Hubbard
The field of veterinary entomology is dominated by research concerning insects and arthropods that negatively impact the health of domestic animals. A curated selection of peer-reviewed research which was highlighted at the 2022 Joint Meeting between the Entomological Society of America, the Entomological Society of Canada, and the Entomological Society of British Columbia, which prioritized exploring entomology through the lens of art, science, and culture are summarized. Articles are categorized into (i) biting and non-biting flies, (ii) ectoparasites, and (iii) review articles, with the overall goal of showcasing innovative methodologies, addressing overlooked questions in veterinary entomology, and highlighting comprehensive reviews...
February 19, 2024: Journal of Medical Entomology
https://read.qxmd.com/read/38372693/host-associations-of-culex-panocossa-diptera-culicidae-in-southern-florida-and-its-implications-for-arbovirus-transmission
#19
JOURNAL ARTICLE
Kristin E Sloyer, Lawrence E Reeves, Nathan D Burkett-Cadena
Culex panocossa, Dyar and Knab, an important enzootic vector of Venezuelan equine encephalitis virus subtype ID in Central and South America, was found to have invaded and become established in southern Florida in 2016. No information is currently available regarding the ecology of this invasive mosquito in the United States. Here, we use PCR-based blood meal analysis to investigate vertebrate host associations of Cx. panocossa from Florida to provide information necessary for determining the potential importance of this mosquito for arbovirus transmission in the United States...
February 19, 2024: Journal of Medical Entomology
https://read.qxmd.com/read/38366896/fecundity-decline-is-male-derived-following-transfluthrin-exposures-in-a-field-strain-of-aedes-albopictus-diptera-culicidae
#20
JOURNAL ARTICLE
Sean A McKay, Conner J McKay, Christopher S Bibbs, Jeffrey R Bloomquist, Phillip E Kaufman
Volatile pyrethroids are effective in reducing mosquito populations and repelling vectors away from hosts. However, many gaps in knowledge exist for the sublethal impacts of volatile pyrethroids on mosquitoes. To that end, transfluthrin exposures were conducted on a field strain of Aedes albopictus (Skuse) held as a laboratory colony. Dose-response analysis was conducted on both sexes at either 1-4 days old or 5-10 days old. Resultant concentration data were used to evaluate the LC20 and LC50 values in various mate pairings of treatments and controls in which either the male or female was from a selectively treated group and mated with a counterpart that was treated independently...
February 16, 2024: Journal of Medical Entomology
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