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Sampling Adults by Animal Bait Catches and by Animal-Baited Traps
Chapter 5 Sampling Adults by Animal Bait Catches and by Animal-Baited Traps The most fundamental method for catching female mosquitoes is to use a suit able bait to attract hungry host-seeking individuals, and human bait catches, sometimes euphemistically called landing counts, have been used for many years to collect anthropophagic species. Variations on the simple direct bait catch have included enclosing human or bait animals in nets, cages or traps which, in theory at least, permit the entrance of mosquitoes but prevent their escape. Other attractants, the most widely used of which are light and carbon dioxide, have also been developed for catching mosquitoes. In some areas, especially in North America, light-traps, with or without carbon dioxide as a supplement, have more or less replaced human and animal baits as a routine sampling method for several species (Chapter 6). However, despite intensive studies on host-seeking behaviour no really effective attractant has been found to replace a natural host, and consequently human bait catches remain the most useful single method of collecting anthropophagic mosquitoes. Moreover, although bait catches are not completely free from sampling bias they are usually more so than most other collecting methods that employ an attractant. They are also easily performed and require no complicated or expensive equipment. HUMAN BAIT CATCHES Attraction to hosts Compounds used by mosquitoes to locate their hosts are known as kairomones, that is substances from the emitters (hosts) are favourable to the receiver (mosquitoes) but not to themselves. Emanations from hosts include heat, water vapour, carbon dioxide and various host odours. -
California Encephalitis Orthobunyaviruses in Northern Europe
California encephalitis orthobunyaviruses in northern Europe NIINA PUTKURI Department of Virology Faculty of Medicine, University of Helsinki Doctoral Program in Biomedicine Doctoral School in Health Sciences Academic Dissertation To be presented for public examination with the permission of the Faculty of Medicine, University of Helsinki, in lecture hall 13 at the Main Building, Fabianinkatu 33, Helsinki, 23rd September 2016 at 12 noon. Helsinki 2016 Supervisors Professor Olli Vapalahti Department of Virology and Veterinary Biosciences, Faculty of Medicine and Veterinary Medicine, University of Helsinki and Department of Virology and Immunology, Hospital District of Helsinki and Uusimaa, Helsinki, Finland Professor Antti Vaheri Department of Virology, Faculty of Medicine, University of Helsinki, Helsinki, Finland Reviewers Docent Heli Harvala Simmonds Unit for Laboratory surveillance of vaccine preventable diseases, Public Health Agency of Sweden, Solna, Sweden and European Programme for Public Health Microbiology Training (EUPHEM), European Centre for Disease Prevention and Control (ECDC), Stockholm, Sweden Docent Pamela Österlund Viral Infections Unit, National Institute for Health and Welfare, Helsinki, Finland Offical Opponent Professor Jonas Schmidt-Chanasit Bernhard Nocht Institute for Tropical Medicine WHO Collaborating Centre for Arbovirus and Haemorrhagic Fever Reference and Research National Reference Centre for Tropical Infectious Disease Hamburg, Germany ISBN 978-951-51-2399-2 (PRINT) ISBN 978-951-51-2400-5 (PDF, available -
Data-Driven Identification of Potential Zika Virus Vectors Michelle V Evans1,2*, Tad a Dallas1,3, Barbara a Han4, Courtney C Murdock1,2,5,6,7,8, John M Drake1,2,8
RESEARCH ARTICLE Data-driven identification of potential Zika virus vectors Michelle V Evans1,2*, Tad A Dallas1,3, Barbara A Han4, Courtney C Murdock1,2,5,6,7,8, John M Drake1,2,8 1Odum School of Ecology, University of Georgia, Athens, United States; 2Center for the Ecology of Infectious Diseases, University of Georgia, Athens, United States; 3Department of Environmental Science and Policy, University of California-Davis, Davis, United States; 4Cary Institute of Ecosystem Studies, Millbrook, United States; 5Department of Infectious Disease, University of Georgia, Athens, United States; 6Center for Tropical Emerging Global Diseases, University of Georgia, Athens, United States; 7Center for Vaccines and Immunology, University of Georgia, Athens, United States; 8River Basin Center, University of Georgia, Athens, United States Abstract Zika is an emerging virus whose rapid spread is of great public health concern. Knowledge about transmission remains incomplete, especially concerning potential transmission in geographic areas in which it has not yet been introduced. To identify unknown vectors of Zika, we developed a data-driven model linking vector species and the Zika virus via vector-virus trait combinations that confer a propensity toward associations in an ecological network connecting flaviviruses and their mosquito vectors. Our model predicts that thirty-five species may be able to transmit the virus, seven of which are found in the continental United States, including Culex quinquefasciatus and Cx. pipiens. We suggest that empirical studies prioritize these species to confirm predictions of vector competence, enabling the correct identification of populations at risk for transmission within the United States. *For correspondence: mvevans@ DOI: 10.7554/eLife.22053.001 uga.edu Competing interests: The authors declare that no competing interests exist. -
The Introduction of Toxorhynchites Brevipalpis Theobald Into the Purpose of This Brief Paper Is to Place on Record an Account Of
Vol. XIV, No. 2, March, 1951 237 The Introduction of Toxorhynchites brevipalpis Theobald into the Territory of Hawaii By DAVID D. BONNET MEDICAL ENTOMOLOGIST, DEPARTMENT OF HEALTH, HONOLULU and STEPHEN M. K. HU CHIEF, BUREAU OF MOSQUITO CONTROL, HONOLULU The purpose of this brief paper is to place on record an account of the introduction of the South African mosquito Toxorhynchites (= Megarhinus) * brevipalpis Theobald into the Territory of Hawaii. The importation of this insect and its establishment would, it is believed, aid in the control of the forest day mosquito, Aedes albopictus Skuse. Any type of container, whether it be a natural container such as a tree hole, bamboo stump, pineapple lily (Bilbergia sp.) or rock hole; or an artificial container such as a vine bowl, tin can, tub, auto tire or bottle, when filled with water, can serve as a breeding location for Aedes albopictus. This varied breeding habit complicates control as it neces sitates the treatment or elimination of a multitude of large and small water-holding containers. Adequate control has been obtained in the urban areas of Hawaii by premises-to-premises inspection, and house holder cooperation, following usual Aedes aegypti (L.) control pro cedures. There are, however, large areas outside the cities where such control measures are not feasible. These areas are principally mountain forest regions which contain a sufficient number of natural breeding situations to maintain a large mosquito population. This population of Aedes albopictus serves not only as a health menace and as a reservoir for reinvasion, but also discourages extensive use of many fine recreation areas. -
Genetic Characterization of the Wyeomyia Group of Orthobunyaviruses and Their Phylogenetic Relationships
Journal of General Virology (2012), 93, 1023–1034 DOI 10.1099/vir.0.039479-0 Genetic characterization of the Wyeomyia group of orthobunyaviruses and their phylogenetic relationships Rashmi Chowdhary,1 Craig Street,1 Amelia Travassos da Rosa,2 Marcio R. T. Nunes,3 Kok Keng Tee,1 Stephen K. Hutchison,4 Pedro F. C. Vasconcelos,5 Robert B. Tesh,2 W. Ian Lipkin1,6 and Thomas Briese1,7 Correspondence 1Center for Infection and Immunity, Columbia University, New York, NY, USA Thomas Briese 2Department of Pathology, University of Texas Medical Branch, Galveston, TX, USA [email protected] 3Department of Arbovirology and Hemorrhagic Fevers, Instituto Evandro Chagas, Ananindeua, Para´, Brazil 4454 Roche Life Sciences, Branford, CT, USA 5Center for Technological Innovation, Instituto Evandro Chagas, Ananindeua, Para´, Brazil 6Department of Pathology and Neurology, College of Physicians and Surgeons, Mailman School of Public Health, Columbia University, New York, NY, USA 7Department of Epidemiology, Mailman School of Public Health, Columbia University, New York, NY, USA Phylogenetic analyses can give new insights into the evolutionary history of viruses, especially of viruses with segmented genomes. However, sequence information for many viral families or genera is still limited and phylogenies based on single or short genome fragments can be misleading. We report the first genetic analysis of all three genome segments of Wyeomyia group viruses Wyeomyia, Taiassui, Macaua, Sororoca, Anhembi and Cachoeira Porteira (BeAr328208) in the genus Orthobunyavirus of the family Bunyaviridae. In addition, Tucunduba and Iaco viruses were identified as members of the Wyeomyia group. Features of Wyeomyia group members that distinguish them from other viruses in the Bunyamwera serogroup and from other orthobunyaviruses, including truncated NSs sequences that may not counteract the host’s interferon response, were characterized. -
Table of Contents
Table of Contents Oral Presentation Abstracts ............................................................................................................................... 3 Plenary Session ............................................................................................................................................ 3 Adult Control I ............................................................................................................................................ 3 Mosquito Lightning Symposium ...................................................................................................................... 5 Student Paper Competition I .......................................................................................................................... 9 Post Regulatory approval SIT adoption ......................................................................................................... 10 16th Arthropod Vector Highlights Symposium ................................................................................................ 11 Adult Control II .......................................................................................................................................... 11 Management .............................................................................................................................................. 14 Student Paper Competition II ...................................................................................................................... 17 Trustee/Commissioner -
Sandra J. Heinemann and John N. Belkin2 for General Information And
Mosquito Systematics vol. lO(3) 1978 365 Collection Records of the Project “Mosquitoes of Middle America” 11. Venezuela (VZ); Guianas: French Guiana (FG, FGC), Guyana (GUY), Surinam (SUR)’ SandraJ. Heinemann and John N. Belkin2 For generalinformation and collectionsfrom the Dominican Republic (RDO) the first publication of this seriesshould be consulted(Belkin and Heinemann 1973). Any departurefrom the method in this publication is indicated below. Publications2-6 of the series(Belkin and Heinemann 1975a, 1975b, 1976a, 1976b, 1976~) recordeddata on collectionsfrom the remainderof the West Indies except Jama& ca (Belkin, Heinemann and Page 1970: 255-304) and the islandsadjacent to Venezuela as well asTrini- dad and Tobago (to be coveredlater). Publication7 on collectionsfrom Costa Rica (Heinemann and Belkin 1977a) begantreatment of Central America and publication 8 coveredthe rest of nuclearCentral America (Heinemann and Belkin 1977b). Publication9 was devoted to Mexico (Heinemann and Belkin 1977c), publication 10 dealt with the extensivecollections in Panama(including Canal Zone) (Heinemann and Belkin 1978) and the pre- sent publication beginscoverage of South America. The collectionsin Venezuelaand the Guianascould not have been made without the interest and assistanceof cooperatorsof the project. We are greatly indebted to theseindividuals and their organiza- tions for the facilities, transportationand assistanceas well as the donation of collectionsto the project. In Venezuelawe are indebted to Arnold0 Gabaldon, Lacenio Guerrero, Pablo Cova Garciaand Juan Pulido, all of Direction de Malariologiay SaneamientoAmbiental, Ministerio de Sanidady Asistencia Social;G. H. Bergoldand Octavia M. Suarez,Departamento de Virologia, Instituto Venezolano de Invest- igacionesCientificas (IVIC); and Felipe J. Martin, Departamentode Zoologia Agricola, Facultad de Agro- nomia, UniversidadCentral de Venezuela,Maracay. -
Towards a Better Understanding of Rift Valley Fever Epidemiology in The
Balenghien et al. Veterinary Research 2013, 44:78 http://www.veterinaryresearch.org/content/44/1/78 VETERINARY RESEARCH REVIEW Open Access Towards a better understanding of Rift Valley fever epidemiology in the south-west of the Indian Ocean Thomas Balenghien1†, Eric Cardinale1,2†, Véronique Chevalier3†, Nohal Elissa4†, Anna-Bella Failloux5*†, Thiery Nirina Jean Jose Nipomichene4†, Gaelle Nicolas3†, Vincent Michel Rakotoharinome6†, Matthieu Roger1† and Betty Zumbo7† Abstract Rift Valley fever virus (Phlebovirus,Bunyaviridae) is an arbovirus causing intermittent epizootics and sporadic epidemics primarily in East Africa. Infection causes severe and often fatal illness in young sheep, goats and cattle. Domestic animals and humans can be contaminated by close contact with infectious tissues or through mosquito infectious bites. Rift Valley fever virus was historically restricted to sub-Saharan countries. The probability of Rift Valley fever emerging in virgin areas is likely to be increasing. Its geographical range has extended over the past years. As a recent example, autochthonous cases of Rift Valley fever were recorded in 2007–2008 in Mayotte in the Indian Ocean. It has been proposed that a single infected animal that enters a naive country is sufficient to initiate a major outbreak before Rift Valley fever virus would ever be detected. Unless vaccines are available and widely used to limit its expansion, Rift Valley fever will continue to be a critical issue for human and animal health in the region of the Indian Ocean. Table of contents humans, symptoms vary from a flu-like syndrome to en- cephalitic, ocular or hemorrhagic syndrome. The case fa- 1. Disease and transmission tality rate of the latter form can be as high as 50% [3]. -
A Review of the Mosquito Species (Diptera: Culicidae) of Bangladesh Seth R
Irish et al. Parasites & Vectors (2016) 9:559 DOI 10.1186/s13071-016-1848-z RESEARCH Open Access A review of the mosquito species (Diptera: Culicidae) of Bangladesh Seth R. Irish1*, Hasan Mohammad Al-Amin2, Mohammad Shafiul Alam2 and Ralph E. Harbach3 Abstract Background: Diseases caused by mosquito-borne pathogens remain an important source of morbidity and mortality in Bangladesh. To better control the vectors that transmit the agents of disease, and hence the diseases they cause, and to appreciate the diversity of the family Culicidae, it is important to have an up-to-date list of the species present in the country. Original records were collected from a literature review to compile a list of the species recorded in Bangladesh. Results: Records for 123 species were collected, although some species had only a single record. This is an increase of ten species over the most recent complete list, compiled nearly 30 years ago. Collection records of three additional species are included here: Anopheles pseudowillmori, Armigeres malayi and Mimomyia luzonensis. Conclusions: While this work constitutes the most complete list of mosquito species collected in Bangladesh, further work is needed to refine this list and understand the distributions of those species within the country. Improved morphological and molecular methods of identification will allow the refinement of this list in years to come. Keywords: Species list, Mosquitoes, Bangladesh, Culicidae Background separation of Pakistan and India in 1947, Aslamkhan [11] Several diseases in Bangladesh are caused by mosquito- published checklists for mosquito species, indicating which borne pathogens. Malaria remains an important cause of were found in East Pakistan (Bangladesh). -
Mosquitoes of Western Uganda
HHS Public Access Author manuscript Author ManuscriptAuthor Manuscript Author J Med Entomol Manuscript Author . Author Manuscript Author manuscript; available in PMC 2019 May 26. Published in final edited form as: J Med Entomol. 2012 November ; 49(6): 1289–1306. doi:10.1603/me12111. Mosquitoes of Western Uganda J.-P. Mutebi1, M. B. Crabtree1, R. J. Kent Crockett1, A. M. Powers1, J. J. Lutwama2, and B. R. Miller1 1Centers for Disease Control and Prevention (CDC), 3150 Rampart Road, Fort Collins, Colorado 80521. 2Department of Arbovirology, Uganda Virus Research Institute (UVRI), P.O. Box 49, Entebbe, Uganda. Abstract The mosquito fauna in many areas of western Uganda has never been studied and is currently unknown. One area, Bwamba County, has been previously studied and documented but the species lists have not been updated for more than 40 years. This paucity of data makes it difficult to determine which arthropod-borne viruses pose a risk to human or animal populations. Using CO2 baited-light traps, from 2008 through 2010, 67,731 mosquitoes were captured at five locations in western Uganda including Mweya, Sempaya, Maramagambo, Bwindi (BINP), and Kibale (KNP). Overall, 88 mosquito species, 7 subspecies and 7 species groups in 10 genera were collected. The largest number of species was collected at Sempaya (65 species), followed by Maramagambo (45), Mweya (34), BINP (33), and KNP (22). However, species diversity was highest in BINP (Simpson’s Diversity Index 1-D = 0.85), followed by KNP (0.80), Maramagambo (0.79), Sempaya (0.67), and Mweya (0.56). Only six species (Aedes (Aedimorphus) cumminsii (Theobald), Aedes (Neomelaniconion) circumluteolus (Theobald), Culex (Culex) antennatus (Becker), Culex (Culex) decens group, Culex (Lutzia) tigripes De Grandpre and De Charmoy, and Culex (Oculeomyia) annulioris Theobald), were collected from all 5 sites suggesting large differences in species composition among sites. -
Diptera: Culicidae: Culicini): a Cautionary Account of Conflict and Support
Insect Systematics & Evolution 46 (2015) 269–290 brill.com/ise The phylogenetic conundrum of Lutzia (Diptera: Culicidae: Culicini): a cautionary account of conflict and support Ian J. Kitching, C. Lorna Culverwell and Ralph E. Harbach* Department of Life Sciences, Natural History Museum, Cromwell Road, London SW7 5BD, UK *Corresponding author, e-mail: [email protected] Published online 12 May 2014; published online 10 June 2015 Abstract Lutzia Theobald was reduced to a subgenus ofCulex in 1932 and was treated as such until it was restored to its original generic status in 2003, based mainly on modifications of the larvae for predation. Previous phylogenetic studies based on morphological and molecular data have provided conflicting support for the generic status of Lutzia: analyses of morphological data support the generic status whereas analyses based on DNA sequences do not. Our previous phylogenetic analyses of Culicini (based on 169 morpho- logical characters and 86 species representing the four genera and 26 subgenera of Culicini, most informal group taxa of subgenus Culex and five outgroup species from other tribes) seemed to indicate a conflict between adult and larval morphological data. Hence, we conducted a series of comparative and data exclu- sion analyses to determine whether the alternative positions of Lutzia are due to conflicting signal or to a lack of strong signal. We found that separate and combined analyses of adult and larval data support dif- ferent patterns of relationships between Lutzia and other Culicini. However, the majority of conflicting clades are poorly supported and once these are removed from consideration, most of the topological dis- parity disappears, along with much of the resolution, suggesting that morphology alone does not have sufficiently strong signal to resolve the position ofLutzia . -
Flaviviruses Infections in Neotropical Primates Suggest Long-Term
Preprints (www.preprints.org) | NOT PEER-REVIEWED | Posted: 5 November 2020 Flaviviruses infections in neotropical primates suggest long-term circulation of Saint Louis Encephalitis and Dengue virus spillback in socioeconomic regions with high numbers of Dengue human cases in Costa Rica Andrea Chaves1,2,*, Martha Piche-Ovares3, Eugenia Corrales3, Gerardo Suzán Andrés Moreira-Soto3,5†, Gustavo A. Gutiérrez-Espeleta2† 1Escuela de Biología, Universidad de Costa, San José, 11501-2060, Costa Rica; [email protected] (A.C.), [email protected] (G.A.G.E). 2Departamento de Etología, Fauna Silvestre y Animales de Laboratorio, Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, Ciudad Universitaria, Av. Universidad #3000, 04510 Mexico City, D.F., Mexico; [email protected] 3Virología-CIET (Centro de Investigación de Enfermedades Tropicales), Universidad de Costa Rica, San José, 2060-1000, Costa Rica; [email protected] (M.P.O.) [email protected] (E.C.), [email protected] (A.M.S.) 4Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Institute of Virology, Berlin, Germany. *corresponding author: [email protected]; † these authors contributed equally to this work Summary: The presence of neotropical primates (NPs) positive or with antibodies against different species of Flavivirus common in Latin America, and specifically in Costa Rica (i.e. Dengue virus) has been established. However, it is unclear if a maintenance of this and other Flavivirus in sylvatic cycles exists, as has been established for yellow fever, with the howler monkey as primary host. We determined the presence of NPs seropositive to Dengue virus (DENV), Saint Louis Encephalitis virus (SLEV), West Nile virus (WNV), and undetermined Flavivirus in the country.