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https://www.readbyqxmd.com/read/29773077/aedes-vittatus-in-spain-current-distribution-barcoding-characterization-and-potential-role-as-a-vector-of-human-diseases
#1
Alazne Díez-Fernández, Josué Martínez-de la Puente, Santiago Ruiz, Rafael Gutiérrez-López, Ramón Soriguer, Jordi Figuerola
BACKGROUND: Aedes vittatus is currently found in Africa, Asia and Europe, where it acts as a vector of pathogens causing animal and human diseases (e.g. chikungunya, Zika and dengue). Like other Aedes species, Ae. vittatus is able to breed in artificial containers. The ECDC has recently highlighted the need for molecular tools (i.e. barcoding characterization) that enable Aedes species to be identified in entomological surveys. RESULTS: We sampled mosquito larvae and adults in southern Spain and used a molecular approach to amplify and sequence a fragment of the cytochrome c oxidase subunit 1 gene (barcoding region) of the mosquitoes...
May 18, 2018: Parasites & Vectors
https://www.readbyqxmd.com/read/29772886/urban-environmental-clustering-to-assess-the-spatial-dynamics-of-aedes-aegypti-breeding-sites
#2
Guillermo Albrieu-Llinás, Manuel O Espinosa, Agustín Quaglia, Marcelo Abril, Carlos Marcelo Scavuzzo
The identification of Aedes aegypti breeding hotspots in urban areas is crucial for the rational design of control strategies against this disease vector. Remote sensing and geographic information systems offer valuable tools for mapping habitat suitability of a given area. However, predicting species occurrences by means of probability distribution maps based on transversal entomological surveys has limited utility for local authorities. The aim of the present study was to carefully examine the temporal evolution of the number of houses infested with immature stages of Ae...
May 7, 2018: Geospatial Health
https://www.readbyqxmd.com/read/29768623/entomological-investigation-of-japanese-encephalitis-outbreak-in-malkangiri-district-of-odisha-state-india
#3
Sudhansu Sekhar Sahu, Smrutidhara Dash, Thankachy Sonia, Subramaniam Muthukumaravel, Thirumal Sankari, Kasinathan Gunasekaran, Purushothaman Jambulingam
BACKGROUND: A severe outbreak of Japanese encephalitis (JE) and acute encephalitis syndrome (AES) with high case fatality was reported from Malkangiri district of Odisha state, India during September to November 2016 affecting 336 children with 103 deaths. OBJECTIVES: The purpose of this study was to investigate the outbreak in the light of entomological determinants. METHODS: Entomological investigation was carried out in 48 villages from four mostly affected Community Health Centres (CHCs) of Malkangiri district...
May 14, 2018: Memórias do Instituto Oswaldo Cruz
https://www.readbyqxmd.com/read/29768552/natural-infection-by-trypanosoma-cruzi-in-triatomines-and-seropositivity-for-chagas-disease-of-dogs-in-rural-areas-of-rio-grande-do-norte-brazil
#4
Yannara Barbosa Nogueira Freitas, Celeste da Silva Freitas de Souza, Jamille Maia E Magalhães, Maressa Laíse Reginaldo de Sousa, Luiz Ney d'Escoffier, Tânia Zaverucha do Valle, Teresa Cristina Monte Gonçalves, Hélcio Reinaldo Gil-Santana, Thais Aaparecida Kazimoto, Sthenia Santos Albano Amora
INTRODUCTION: Chagas disease is caused by the protozoa Trypanosoma cruzi. Its main reservoir is the domestic dog, especially in rural areas with favorable characteristics for vector establishment and proliferation. The aims of this study were to collect data, survey and map the fauna, and identify T. cruzi infection in triatomines, as well as to assess the presence of anti-T. cruzi antibodies in dogs in rural areas of the municipality of Mossoró, Brazil. METHODS: An active entomologic research was conducted to identify adult specimens through an external morphology dichotomous key...
March 2018: Revista da Sociedade Brasileira de Medicina Tropical
https://www.readbyqxmd.com/read/29764669/editorial-overview-ecology-ecological-adaptation-in-agroecosystems-novel-opportunities-to-integrate-evolutionary-biology-and-agricultural-entomology
#5
EDITORIAL
Yolanda H Chen, Sean D Schoville
No abstract text is available yet for this article.
April 2018: Current Opinion in Insect Science
https://www.readbyqxmd.com/read/29764426/outcome-of-capacity-building-intervention-for-malaria-vector-surveillance-control-and-research-in-nigerian-higher-institutions
#6
Adedayo O Oduola, Abiodun Obembe, Olukayode J Adelaja, Adeniyi K Adeneye, Joel Akilah, Taiwo S Awolola
BACKGROUND: Despite the availability of effective malaria vector control intervention tools, implementation of control programmes in Nigeria is challenged by inadequate entomological surveillance data. This study was designed to assess and build the existing capacity for malaria vector surveillance, control and research (MVSC&R) in Nigerian institutions. METHODS: Application call to select qualified candidates for the capacity building (CB) intervention training programme was advertised in a widely read newspaper and online platforms of national and international professional bodies...
May 15, 2018: Malaria Journal
https://www.readbyqxmd.com/read/29757525/entomological-surveys-of-lutzomyia-flaviscutellata-and-other-vectors-of-cutaneous-leishmaniasis-in-municipalities-with-records-of-leishmania-amazonensis-within-the-bragan%C3%A3-a-region-of-par%C3%A3-state-brazil
#7
Bruno M Carvalho, Thiago Vasconcelos Dos Santos, Iorlando da R Barata, José Aprígio N Lima, Fernando T Silveira, Mariana M Vale, Paul D Ready, Elizabeth F Rangel
In southeast Amazon, Lutzomyia (Nyssomyia) flaviscutellata is the incriminated vector of Leishmania (Leishmania) amazonensis, a causative agent of zoonotic cutaneous leishmaniasis (CL). The optimal methods for surveying Lu. flaviscutellata were investigated in the Bragança region, northeast Pará State, Brazil, selected for the presence of Le. amazonensis. The performances of modified Disney traps and CDC light traps were compared in four ecotopes within and around four village transects during the wet and dry seasons...
June 2018: Journal of Vector Ecology: Journal of the Society for Vector Ecology
https://www.readbyqxmd.com/read/29755261/spider-assemblages-associated-with-different-crop-stages-of-irrigated-rice-agroecosystems-from-eastern-uruguay
#8
Leticia Bao, Juaquín Ginella, Mónica Cadenazzi, Enrique A Castiglioni, Sebastián Martínez, Luis Casales, María P Caraballo, Álvaro Laborda, Miguel Simo
The rice crop and associated ecosystems constitute a rich mosaic of habitats that preserve a rich biological diversity. Spiders are an abundant and successful group of natural predators that are considered efficient in the biocontrol of the major insect pests in agroecosystems. Spider diversity in different stages of the rice crop growth from eastern Uruguay was analysed. Field study was developed on six rice farms with rotation system with pasture, installed during intercropping stage as cover crop. Six rice crops distributed in three locations were sampled with pitfall and entomological vaccum suction machine...
2018: Biodiversity Data Journal
https://www.readbyqxmd.com/read/29753971/development-and-validation-of-an-hplc-ms-ms-method-for-the-detection-of-ketamine-in-calliphora-vomitoria-l-diptera-calliphoridae
#9
Paola A Magni, Marco Pazzi, Jessica Droghi, Marco Vincenti, Ian R Dadour
Entomotoxicology is a branch of forensic entomology that studies the detection of drugs or other toxic substances from insects developing on the decomposing tissues of a human corpse or animal carcass. Entomotoxicology also investigates the effects of these substances on insect development, survival and morphology to provide an estimation of the minimum time since death. Ketamine is a medication mainly used for starting and maintaining anesthesia. In recent years ketamine has also been used as a recreational drug, and occasionally as a sedating drug to facilitate sexual assault...
May 3, 2018: Journal of Forensic and Legal Medicine
https://www.readbyqxmd.com/read/29740343/identification-of-chemosensory-genes-based-on-the-transcriptomic-analysis-of-six-different-chemosensory-organs-in-spodoptera-exigua
#10
Ya-Nan Zhang, Jia-Li Qian, Ji-Wei Xu, Xiu-Yun Zhu, Meng-Ya Li, Xiao-Xue Xu, Chun-Xiang Liu, Tao Xue, Liang Sun
Insects have a complex chemosensory system that accurately perceives external chemicals and plays a pivotal role in many insect life activities. Thus, the study of the chemosensory mechanism has become an important research topic in entomology. Spodoptera exigua Hübner (Lepidoptera: Noctuidae) is a major agricultural polyphagous pest that causes significant agricultural economic losses worldwide. However, except for a few genes that have been discovered, its olfactory and gustatory mechanisms remain uncertain...
2018: Frontiers in Physiology
https://www.readbyqxmd.com/read/29740230/assessing-risks-of-pesticides-targeting-lepidopteran-pests-in-cruciferous-ecosystems-to-eggs-parasitoid-trichogramma-brassicae-bezdenko
#11
D P Thubru, D M Firake, G T Behere
Lethal and sub lethal effects of fresh and old residues of azadirachtin, spinosad, Bacillus thuringiensis var. kurstaki ( Bt var. k ), and deltamethrin, were evaluated at their recommended field doses against adult and immature stages of Trichogramma brassicae under in vitro conditions. The experiments were carried out at the Entomology section of Division of Crop Protection, ICAR Research Complex for NEH region, Umiam, Meghalaya, in 2012-2013. The effects of different pesticides were determined by bioassays using the residual film method, the diet contamination method, the pupal dip method and the topical application technique...
May 2018: Saudi Journal of Biological Sciences
https://www.readbyqxmd.com/read/29735653/arthropods-in-modern-resins-reveal-if-amber-accurately-recorded-forest-arthropod-communities
#12
Mónica M Solórzano Kraemer, Xavier Delclòs, Matthew E Clapham, Antonio Arillo, David Peris, Peter Jäger, Frauke Stebner, Enrique Peñalver
Amber is an organic multicompound derivative from the polymerization of resin of diverse higher plants. Compared with other modes of fossil preservation, amber records the anatomy of and ecological interactions between ancient soft-bodied organisms with exceptional fidelity. However, it is currently suggested that ambers do not accurately record the composition of arthropod forest paleocommunities, due to crucial taphonomic biases. We evaluated the effects of taphonomic processes on arthropod entrapment by resin from the plant Hymenaea , one of the most important resin-producing trees and a producer of tropical Cenozoic ambers and Anthropocene (or subfossil) resins...
May 7, 2018: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29720246/rapid-identification-of-medically-important-mosquitoes-by-matrix-assisted-laser-desorption-ionization-time-of-flight-mass-spectrometry
#13
Abhishek Mewara, Megha Sharma, Taruna Kaura, Kamran Zaman, Rakesh Yadav, Rakesh Sehgal
BACKGROUND: Accurate and rapid identification of dipteran vectors is integral for entomological surveys and is a vital component of control programs for mosquito-borne diseases. Conventionally, morphological features are used for mosquito identification, which suffer from biological and geographical variations and lack of standardization. We used matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS) for protein profiling of mosquito species from North India with the aim of creating a MALDI-TOF MS database and evaluating it...
May 2, 2018: Parasites & Vectors
https://www.readbyqxmd.com/read/29713593/changing-distribution-and-abundance-of-the-malaria-vector-anopheles-merus-in-mpumalanga-province-south-africa
#14
F Mbokazi, M Coetzee, B Brooke, J Govere, A Reid, P Owiti, R Kosgei, S Zhou, R Magagula, G Kok, J Namboze, H Tweya, A Mabuza
Background: The malaria vector Anopheles merus occurs in the Mpumalanga Province of South Africa. As its contribution to malaria transmission in South Africa has yet to be ascertained, an intensification of surveillance is necessary to provide baseline information on this species. The aim of this study was therefore to map An. merus breeding sites in the Ehlanzeni District of Mpumalanga Province and to assess qualitative trends in the distribution and relative abundance of this species over a 9-year period...
April 25, 2018: Public Health Action
https://www.readbyqxmd.com/read/29704178/structural-characterization-of-bacillus-licheniformis-dahb1-exopolysaccharide-antimicrobial-potential-and-larvicidal-activity-on-malaria-and-zika-virus-mosquito-vectors
#15
Muthukumar Abinaya, Baskaralingam Vaseeharan, Mani Divya, Sekar Vijayakumar, Marimuthu Govindarajan, Naiyf S Alharbi, Jamal M Khaled, Mohammed N Al-Anbr, Giovanni Benelli
Microbial polysaccharides produced by marine species play a key role in food and cosmetic industry, as they are nontoxic and biodegradable polymers. This investigation reports the isolation of exopolysaccharide from Bacillus licheniformis Dahb1 and its biomedical applications. Bacillus licheniformis Dahb1 exopolysaccharide (Bl-EPS) was extracted using the ethanol precipitation method and structurally characterized. FTIR and 1 H-NMR pointed out the presence of various functional groups and primary aromatic compounds, respectively...
April 27, 2018: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29703229/impact-of-an-integrated-control-campaign-on-tsetse-populations-in-burkina-faso
#16
Lassané Percoma, Adama Sow, Soumaïla Pagabeleguem, Ahmadou H Dicko, Oumarou Serdebéogo, Mariam Ouédraogo, Jean-Baptiste Rayaissé, Jérémy Bouyer, Adrien M G Belem, Issa Sidibé
BACKGROUND: Tsetse flies are the sole vectors of human and animal trypanosomosis. In Burkina Faso, a project aiming to create zones free of tsetse flies and trypanosomosis was executed from June 2006 to December 2013. After the determination of tsetse distribution in the intervention area from December 2007 to November 2008, the control campaign was launched in November 2009 and ended in December 2013. The goal was to eliminate tsetse flies from 40,000 km2 of area, through an integrated control campaign including insecticide targets, traps and cattle, sequential aerial treatment (SAT) and the mass treatment of livestock using trypanocides...
April 27, 2018: Parasites & Vectors
https://www.readbyqxmd.com/read/29698658/a-novel-use-of-infra-red-spectroscopy-nirs-and-atr-ftir-coupled-with-variable-selection-algorithms-for-the-identification-of-insect-species-diptera-sarcophagidae-of-medico-legal-relevance
#17
Taciano M Barbosa, Leomir A S de Lima, Marfran C D Dos Santos, Simão D Vasconcelos, Renata A Gama, Kássio M G Lima
Unequivocal identification of fly specimens is an essential requirement in forensic entomology. Herein, a simple, non-destructive and rapid method based on two vibrational spectroscopy techniques [Near-Infrared Spectroscopy (NIRS) and attenuated total reflection Fourier-transform infrared (ATR-FTIR) spectroscopy] coupled with variable selection techniques such as genetic algorithm-linear discriminant analysis (GA-LDA) and successive projection algorithm-linear discriminant analysis (SPA-LDA) were applied for identifying and discriminating six species of flesh flies (Diptera: Sarcophagidae) native to Neotropical regions...
April 23, 2018: Acta Tropica
https://www.readbyqxmd.com/read/29694494/asilidae-diptera-of-two-atlantic-forest-protected-areas-of-rio-de-janeiro-southeastern-brazil
#18
Danilo P Moreira-Junior, Valéria C Maia
As few Asilidae inventories of Rio de Janeiro areas have been published, there are many data gaps. This paper aims to contribute to the knowledge of richness, abundance and distribution of this family in this State. From January 2013 to March 2014, insects were collected monthly using Malaise traps and every two months using entomological nets in the Reserva Biológica União (REBIO), and Estação Ecológica Estadual de Guaxindiba (EEEG). 682 specimens of Asilidae were collected in the present study, distributed in 31 genera and 51 species (20 identified and 31 unidentified), 527 of REBIO (in 19 genera and 38 species - 14 identified and 24 unidentified), and 155 specimens of EEEG (in 12 genera and 19 species - 6 identified and 13 unidentified)...
April 23, 2018: Anais da Academia Brasileira de Ciências
https://www.readbyqxmd.com/read/29692914/inventory-and-update-on-argasid-ticks-and-associated-pathogens-in-algeria
#19
REVIEW
I Lafri, W Benredjem, F Neffah-Baaziz, R Lalout, K Abdelouahed, B Gassen, S Bakhouch, M Chergui, M Karakellah, H Adjmi-Hamoudi, I Bitam
Argasid ticks include vectors of relapsing fevers caused by Borrelia spp. in humans, and they can transmit arboviruses and other bacterial pathogens. Knowledge about soft ticks ( Ixodida: Argasidae ) in Algeria is incomplete, and distribution data need to be updated. Here we report a series of entomologic investigations that we conducted in five different areas in Algeria between 2012 and 2015. Ticks were identified by entomologic keys and molecular tools (16S rRNA gene). Six distinct species belonging to two genera were identified, including Ornithodoros capensis s...
May 2018: New Microbes and New Infections
https://www.readbyqxmd.com/read/29690907/elimination-of-onchocerciasis-in-ecuador-findings-of-post-treatment-surveillance
#20
Ángel Guevara, Raquel Lovato, Roberto Proaño, Mario A Rodriguez-Perez, Thomas Unnasch, Philip J Cooper, Ronald H Guderian
BACKGROUND: The Esmeraldas focus of onchocerciasis in Ecuador expanded geographically during the 1980s and was associated with severe ocular and skin disease. Mass drug administration (MDA) with ivermectin started in 1991, initially once but later twice a year, in the principle endemic focus followed by all satellite foci. Treatment was stopped in 2009 when entomological assessments determined that transmission of Onchocerca volvulus had been interrupted. METHODS: Three years after the cessation of ivermectin treatment in 2012, as defined by the WHO guidelines for onchocerciasis elimination, blackfly collections were done in four sentinel sites in former hyperendemic areas...
April 24, 2018: Parasites & Vectors
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