Guidance Framework for Testing the Sterile Insect Technique As a Vector Control Tool Against Aedes-Borne Diseases
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The 2014 Golden Gate National Parks Bioblitz - Data Management and the Event Species List Achieving a Quality Dataset from a Large Scale Event
National Park Service U.S. Department of the Interior Natural Resource Stewardship and Science The 2014 Golden Gate National Parks BioBlitz - Data Management and the Event Species List Achieving a Quality Dataset from a Large Scale Event Natural Resource Report NPS/GOGA/NRR—2016/1147 ON THIS PAGE Photograph of BioBlitz participants conducting data entry into iNaturalist. Photograph courtesy of the National Park Service. ON THE COVER Photograph of BioBlitz participants collecting aquatic species data in the Presidio of San Francisco. Photograph courtesy of National Park Service. The 2014 Golden Gate National Parks BioBlitz - Data Management and the Event Species List Achieving a Quality Dataset from a Large Scale Event Natural Resource Report NPS/GOGA/NRR—2016/1147 Elizabeth Edson1, Michelle O’Herron1, Alison Forrestel2, Daniel George3 1Golden Gate Parks Conservancy Building 201 Fort Mason San Francisco, CA 94129 2National Park Service. Golden Gate National Recreation Area Fort Cronkhite, Bldg. 1061 Sausalito, CA 94965 3National Park Service. San Francisco Bay Area Network Inventory & Monitoring Program Manager Fort Cronkhite, Bldg. 1063 Sausalito, CA 94965 March 2016 U.S. Department of the Interior National Park Service Natural Resource Stewardship and Science Fort Collins, Colorado The National Park Service, Natural Resource Stewardship and Science office in Fort Collins, Colorado, publishes a range of reports that address natural resource topics. These reports are of interest and applicability to a broad audience in the National Park Service and others in natural resource management, including scientists, conservation and environmental constituencies, and the public. The Natural Resource Report Series is used to disseminate comprehensive information and analysis about natural resources and related topics concerning lands managed by the National Park Service. -
Combating Zika
PROJECT SUMMARIES VECTOR CONTROL Wolbachia-Infected Mosquitoes Scaled Deployment of Wolbachia-Infected Mosquitoes to Block Disease Transmission Organization: Eliminate Dengue Program, Monash University Location: Melbourne, Australia Problem: Dengue is estimated to threaten the health of almost 4 billion people living in tropical and subtropical regions of the world and Zika is currently exploding as an emerging global disease with major outbreaks underway throughout tropical South America. Solution: Infect mosquitoes with Wolbachia, a naturally occurring bacteria proven to block the transmission of dengue fever and Zika virus from mosquitoes to humans. The approach provides a natural, sustainable, cost-effective new tool for preventing transmission of a range of arboviruses including Zika, dengue and chikungunya. The project, which has been proven to work over long-term field tests, will now be tested in much larger populations in several Latin American communities. This method represents a paradigm shift in arboviral disease control. It's an innovative, cutting edge technology that provides a sustainable, long-term intervention for communities affected by arboviral diseases. Compared with conventional insecticide-based or genetic population suppression control methods that may provide limited, short-term reductions in the mosquito population, once Wolbachia has established in the local population, it persists without the need for continual reapplication or additional insecticide--based control methods while reducing the risk of infection with dengue, chikungunya and Zika viruses. In addition, residents are not required to change their behaviour or participate in ongoing activities after the mosquito releases are concluded. This research, which is the first of its kind in the world, could potentially benefit an estimated 2.5 billion people currently living in arboviral disease transmission areas worldwide. -
A Review on the Progress of Sex-Separation Techniques For
Mashatola et al. Parasites & Vectors 2018, 11(Suppl 2):646 https://doi.org/10.1186/s13071-018-3219-4 REVIEW Open Access A review on the progress of sex-separation techniques for sterile insect technique applications against Anopheles arabiensis Thabo Mashatola1,2,3, Cyrille Ndo4,5,6, Lizette L. Koekemoer1,2, Leonard C. Dandalo1,2, Oliver R. Wood1,2, Lerato Malakoane1,2, Yacouba Poumachu3,4,7, Leanne N. Lobb1,2, Maria Kaiser1,2, Kostas Bourtzis3 and Givemore Munhenga1,2* Abstract The feasibility of the sterile insect technique (SIT) as a malaria vector control strategy against Anopheles arabiensis has been under investigation over the past decade. One of the critical steps required for the application of this technique to mosquito control is the availability of an efficient and effective sex-separation system. Sex-separation systems eliminate female mosquitoes from the production line prior to irradiation and field release of sterile males. This is necessary because female mosquitoes can transmit pathogens such as malaria and, therefore, their release must be prevented. Sex separation also increases the efficiency of an SIT programme. Various sex-separation strategies have been explored including the exploitation of developmental and behavioural differences between male and female mosquitoes, and genetic approaches. Most of these are however species-specific and are not indicated for the major African malaria vectors such as An. arabiensis. As there is currently no reliable sex-separation method for An. arabiensis, various strategies were explored in an attempt to develop a robust system that can be applied on a mass- rearing scale. The progress and challenges faced during the development of a sexing system for future pilot and/or large-scale SIT release programmes against An. -
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. -
Importance of Mosquitoes
IMPORTANCE OF MOSQUITOES Portions of this chapter were obtained from the University of Florida and the American Mosquito Control Association Public Health Pest Control website at http://vector.ifas.ufl.edu. Introduction to Pests and Public Health: Arthropods are the most successful group of animals on Earth. They thrive in every habitat and in all regions of the world. A small number of species from this phylum have a great impact on humans, affecting us not only by damaging agriculture and horticultural crops but also through the diseases they can transmit to humans and our domestic animals. Insects can transmit disease (vectors), cause wounds, inject venom, or create nuisance, and have serious social and economic consequences. Arthropods can be indirect (mechanical carriers) or direct (biological carriers) transmitters of disease. As indirect agents they serve as simple mechanical carriers of various bacteria and fungi which may cause disease. As direct or biological agents they serve as vectors for diseasecausing agents that require the insect as part of the life cycle. In considering transmission of disease causing organisms, it is important to understand the relationships among the vector (the disease transmitting organism, i.e. an insect), the disease pathogen (for example, a virus) and the host (humans or animals). The pathogen may or may not undergo different life stages while in the vector. Pathogens that undergo changes in life stages within the vector before being transmitted to a host require the vector—without the vector, the disease life cycle would be broken and the pathogen would die. In either case, the vector is the means for the pathogen to pass from one host to another. -
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 -
Aedes (Stegomyia ) Polynesiensis Marks
Aedes (Stegomyia) polynesiensis Marks Polynesian mosquito NZ Status: Not present –Unwanted Organisms © CINHP/G.MCCormaCk Vector and Pest Status Aedes polynesiensis is a veCtor of dengue, doG heartworm (Dirofilaria immitis) and filariasis (Wuchereria bancrofti) (Rosen, 1954; Lee et al., 1987). This speCies is also susceptible to infeCtion with Brugia pahangi and Brugia malayii (Trpis, 1981 in Lee et al., 1987). In the laboratory it has been shown to be Capable of transmitting Murray Valley enCephalitis (Rozeboom and MCLean, 1956 in Lee et al., 1987) Ross River virus (Gubler, 1981) and ChikunGunya (Richard, Paoaafaite and Cao-Lormeau, 2016a). The ability for Ae. polynesiensis to transmit Chikungunya is likely how the disease was able to spread rapidly thouGh areas where Ae. aegypti is sCarce or not present durinG an outbreak in FrenCh Polynesia in 2014-2015 (RiChard, Paoaafaite and Cao-Lormeau, 2016a). Aedes polynesiensis has also been found to be a veCtor for Zika virus, thouGh they had a low transmission rate (Calvez et al., 2018, Richard, Paoaafaite and Cao- Lormeau, 2016b) and while CompetenCe is poor they likely responsible for the spread of Zika virus where they are the predominate speCies (Richard, Paoaafaite and Cao-Lormeau, 2016b). Version 3: May 2019 Geographic Distribution Aedes polynesiensis is found only in the PaCific, in Fiji, Horne Islands, ElliCe Islands (Tuvalu), Tokelau Islands, Samoa, Northern and Southern Cook Islands, Marquesas Islands, SoCiety Islands, ManGarewa Islands, Alofi Island, Wallis and Futuna Island Austral Islands, Tuamotu ArChipelago and PitCairn Island (Lee et al., 1987). © 2006 M. Disbury SMS-NZB www.smsl.co.nz This map denotes only the Country or General areas where this speCies has been reCorded, not aCtual distribution Incursions and Interceptions Aedes polynesiensis has been interCepted on three ocCasions in New Zealand sinCe 2001. -
Male Mating Competitiveness of a Wolbachia-Introgressed Aedes Polynesiensis Strain Under Semi-Field Conditions" (2011)
University of Kentucky UKnowledge Entomology Faculty Publications Entomology 8-2-2011 Male mating competitiveness of a Wolbachia- introgressed Aedes polynesiensis strain under semi- field conditions Eric W. Chambers University of Kentucky Limb Hapairai Institut Louis Malardé, French Polynesia Bethany A. Peel University of Kentucky, [email protected] Hervé Bossin Institut Louis Malardé, French Polynesia Stephen L. Dobson University of Kentucky, [email protected] Right click to open a feedback form in a new tab to let us know how this document benefits oy u. Follow this and additional works at: https://uknowledge.uky.edu/entomology_facpub Part of the Entomology Commons Repository Citation Chambers, Eric W.; Hapairai, Limb; Peel, Bethany A.; Bossin, Hervé; and Dobson, Stephen L., "Male mating competitiveness of a Wolbachia-introgressed Aedes polynesiensis strain under semi-field conditions" (2011). Entomology Faculty Publications. 28. https://uknowledge.uky.edu/entomology_facpub/28 This Article is brought to you for free and open access by the Entomology at UKnowledge. It has been accepted for inclusion in Entomology Faculty Publications by an authorized administrator of UKnowledge. For more information, please contact [email protected]. Male mating competitiveness of a Wolbachia-introgressed Aedes polynesiensis strain under semi-field conditions Notes/Citation Information Published in PLoS Neglected Tropical Diseases, v. 5, no. 8, e1271. © 2011 Chambers et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. Digital Object Identifier (DOI) http://dx.doi.org/10.1371/journal.pntd.0001271 This article is available at UKnowledge: https://uknowledge.uky.edu/entomology_facpub/28 Male Mating Competitiveness of a Wolbachia-Introgressed Aedes polynesiensis Strain under Semi-Field Conditions Eric W. -
Survivorship in Aedes Polynesiensis with Artificial Wolbachia Infection Types
Reactive Oxygen Species Production and Brugia pahangi Survivorship in Aedes polynesiensis with Artificial Wolbachia Infection Types Elizabeth S. Andrews1, Philip R. Crain1, Yuqing Fu1,2, Daniel K. Howe3, Stephen L. Dobson1* 1 Department of Entomology, College of Agriculture, University of Kentucky, Lexington, Kentucky, United States of America, 2 Tropical Research and Education Center, University of Florida, Homestead, Florida, United States of America, 3 Gluck Equine Research Center, Department of Veterinary Science, University of Kentucky, Lexington, Kentucky, United States of America Abstract Heterologous transinfection with the endosymbiotic bacterium Wolbachia has been shown previously to induce pathogen interference phenotypes in mosquito hosts. Here we examine an artificially infected strain of Aedes polynesiensis, the primary vector of Wuchereria bancrofti, which is the causative agent of Lymphatic filariasis (LF) throughout much of the South Pacific. Embryonic microinjection was used to transfer the wAlbB infection from Aedes albopictus into an aposymbiotic strain of Ae. polynesiensis. The resulting strain (designated ‘‘MTB’’) experiences a stable artificial infection with high maternal inheritance. Reciprocal crosses of MTB with naturally infected wild-type Ae. polynesiensis demonstrate strong bidirectional incompatibility. Levels of reactive oxygen species (ROS) in the MTB strain differ significantly relative to that of the wild-type, indicating an impaired ability to regulate oxidative stress. Following a challenge with Brugia pahangi, the number of filarial worms achieving the infective stage is significantly reduced in MTB as compared to the naturally infected and aposymbiotic strains. Survivorship of MTB differed significantly from that of the wild-type, with an interactive effect between survivorship and blood feeding. The results demonstrate a direct correlation between decreased ROS levels and decreased survival of adult female Aedes polynesiensis. -
1020 1630 Chambers.Pdf
Advances in Wolbachia-based biological control of mosquitoes: lessons learned from the South Pacific Eric W. Chambers Department of Biology Valdosta State University, Valdosta GA Outline of Presentation • What’s the problem? - Review of lymphatic filariasis • Aedes polynesiensis – A unique mosquito • Wolbachia based control of Aedes polynesiensis • Future research Lymphatic filariasis (LF) • Global Distribution-endemic in 83 countries – 120 million infected – 1 billion at risk Lymphatic filariasis in the Pacific Northern Marianas Guam Marshall Islands Federated States of Micronesia Palau Nauru Kiribati Kiribati Kiribati Papua New Guinea (Phoenix) (Line Tuvalu Islands) Periodic Tokelau Solomon Is Cook Wallis & Islands Futuna Samoa Fiji Am Vanuatu Samoa Subperiodic New Niue Caledonia Tonga French Polynesia Pitcairn Australia New Zealand Lymphatic filariasis vectors in the Pacific Vector Countries Where Found Aedes cooki Niue Aedes fijiensis Fiji Aedes horrensces Fiji Aedes kochi Papua New Guinea Aedes marshallensis Kiribati Aedes oceanicus Tonga Aedes polynesiensis Am Samoa, Samoa, Cook Islands, Tokelau, Tuvalu, French Polynesia, Wallis and Futuna, Fiji Aedes pseudoscutellaris Fiji Aedes rotumae Rotuma Island in Fiji Aedes samoanus Samoa Aedes tabu Tonga Aedes tutuilae Samoa Aedes upolenis Samoa Ochlerotatus vigilax New Caledonia, Fiji An punctulatus complex Papua New Guinea, Solomon Islands, Vanuatu Culex annulirostris Irian Jaya Culex quinquefasciatus Kiribati, Pelau, Fed States Micronesia, PNG, Fiji, etc Mansonia uniformis Papua New Guinea Aedes polynesiensis (Marks) Courtesy Renee Chambers • Found only on the islands of the South Pacific • Day-biting mosquito • Exophilic • Major vector of lymphatic filariasis (LF) French Polynesia Is MDA enough in the South Pacific? • Treatment with DEC since 1955 • Antigen prevalence of 4.6% • Mosquito infection rate of 1.4% Society islands – Marquesas = 12.3% Tahiti = 11.5% Australes-Tuamotu Gambier = 12.3% Slide credit: Herve Bossin What makes transmission of LF by Aedes polynesiensis in the South Pacific unique? 1. -
North American Wetlands and Mosquito Control
Int. J. Environ. Res. Public Health 2012, 9, 4537-4605; doi:10.3390/ijerph9124537 OPEN ACCESS International Journal of Environmental Research and Public Health ISSN 1660-4601 www.mdpi.com/journal/ijerph Article North American Wetlands and Mosquito Control Jorge R. Rey 1,*, William E. Walton 2, Roger J. Wolfe 3, C. Roxanne Connelly 1, Sheila M. O’Connell 1, Joe Berg 4, Gabrielle E. Sakolsky-Hoopes 5 and Aimlee D. Laderman 6 1 Florida Medical Entomology Laboratory and Department of Entomology and Nematology, University of Florida-IFAS, Vero Beach, FL 342962, USA; E-Mails: [email protected] (R.C.); [email protected] (S.M.O.C.) 2 Department of Entomology, University of California, Riverside, CA 92521, USA; E-Mail: [email protected] 3 Connecticut Department of Energy and Environmental Protection, Franklin, CT 06254, USA; E-Mail: [email protected] 4 Biohabitats, Inc., 2081 Clipper Park Road, Baltimore, MD 21211, USA; E-Mail: [email protected] 5 Cape Cod Mosquito Control Project, Yarmouth Port, MA 02675, USA; E-Mail: [email protected] 6 Marine Biological Laboratory, Woods Hole, MA 02543, USA; E-Mail: [email protected] * Author to whom correspondence should be addressed; E-Mail: [email protected]; Tel.: +1-772-778-7200 (ext. 136). Received: 11 September 2012; in revised form: 21 November 2012 / Accepted: 22 November 2012 / Published: 10 December 2012 Abstract: Wetlands are valuable habitats that provide important social, economic, and ecological services such as flood control, water quality improvement, carbon sequestration, pollutant removal, and primary/secondary production export to terrestrial and aquatic food chains. There is disagreement about the need for mosquito control in wetlands and about the techniques utilized for mosquito abatement and their impacts upon wetlands ecosystems. -
The Impact of Releasing Sterile Mosquitoes on Malaria Transmission
DISCRETE AND CONTINUOUS doi:10.3934/dcdsb.2018113 DYNAMICAL SYSTEMS SERIES B Volume 23, Number 9, November 2018 pp. 3837{3853 THE IMPACT OF RELEASING STERILE MOSQUITOES ON MALARIA TRANSMISSION Hongyan Yin School of Mathematics and Statistics Central China Normal University Wuhan 430079, China School of Mathematics and Statistics South-Central University for Nationalities Wuhan 430074, China Cuihong Yang∗ and Xin'an Zhang School of Mathematics and Statistics Central China Normal University Wuhan 430079, China Jia Li Department of Mathematical Science University of Alabama in Huntsville Huntsville AL 35899, USA (Communicated by Yuan Lou) Abstract. The sterile mosquitoes technique in which sterile mosquitoes are released to reduce or eradicate the wild mosquito population has been used in preventing the malaria transmission. To study the impact of releasing sterile mosquitoes on the malaria transmission, we first formulate a simple SEIR (susceptible-exposed-infected-recovered) malaria transmission model as our baseline model, derive a formula for the reproductive number of infection, and determine the existence of endemic equilibria. We then include sterile mosquitoes in the baseline model and consider the case of constant releases of sterile mosquitoes. We examine how the releases affect the reproductive numbers and endemic equilibria for the model with interactive mosquitoes and investigate the impact of releasing sterile mosquitoes on the malaria transmis- sion. 1. Introduction. Mosquito-borne diseases, such as malaria, transmitted between humans by mosquitoes, are big concerns for the public health. Malaria is the fifth cause of death from infectious diseases worldwide (after respiratory infections, HIV/AIDS, diarrheal diseases, and tuberculosis), and the second leading cause of death from infectious diseases in Africa after HIV/AIDS.