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Njoroge TM, Hamid-Adiamoh M, Duman-Scheel M. Maximizing the Potential of Attractive Targeted Sugar Baits (ATSBs) for Integrated Vector Management. INSECTS 2023; 14:585. [PMID: 37504591 PMCID: PMC10380652 DOI: 10.3390/insects14070585] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Revised: 06/23/2023] [Accepted: 06/24/2023] [Indexed: 07/29/2023]
Abstract
Due to the limitations of the human therapeutics and vaccines available to treat and prevent mosquito-borne diseases, the primary strategy for disease mitigation is through vector control. However, the current tools and approaches used for mosquito control have proven insufficient to prevent malaria and arboviral infections, such as dengue, Zika, and lymphatic filariasis, and hence, these diseases remain a global public health threat. The proven ability of mosquito vectors to adapt to various control strategies through insecticide resistance, invasive potential, and behavioral changes from indoor to outdoor biting, combined with human failures to comply with vector control requirements, challenge sustained malaria and arboviral disease control worldwide. To address these concerns, increased efforts to explore more varied and integrated control strategies have emerged. These include approaches that involve the behavioral management of vectors. Attractive targeted sugar baits (ATSBs) are a vector control approach that manipulates and exploits mosquito sugar-feeding behavior to deploy insecticides. Although traditional approaches have been effective in controlling malaria vectors indoors, preventing mosquito bites outdoors and around human dwellings is challenging. ATSBs, which can be used to curb outdoor biting mosquitoes, have the potential to reduce mosquito densities and clinical malaria incidence when used in conjunction with existing vector control strategies. This review examines the available literature regarding the utility of ATSBs for mosquito control, providing an overview of ATSB active ingredients (toxicants), attractants, modes of deployment, target organisms, and the potential for integrating ATSBs with existing vector control interventions.
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Affiliation(s)
- Teresia Muthoni Njoroge
- Department of Medical and Molecular Genetics, Indiana University School of Medicine, Raclin-Carmichael Hall, 1234 Notre Dame Ave., South Bend, IN 46617, USA
- Eck Institute for Global Health, The University of Notre Dame, Notre Dame, South Bend, IN 46556, USA
| | - Majidah Hamid-Adiamoh
- Department of Medical and Molecular Genetics, Indiana University School of Medicine, Raclin-Carmichael Hall, 1234 Notre Dame Ave., South Bend, IN 46617, USA
- Eck Institute for Global Health, The University of Notre Dame, Notre Dame, South Bend, IN 46556, USA
| | - Molly Duman-Scheel
- Department of Medical and Molecular Genetics, Indiana University School of Medicine, Raclin-Carmichael Hall, 1234 Notre Dame Ave., South Bend, IN 46617, USA
- Eck Institute for Global Health, The University of Notre Dame, Notre Dame, South Bend, IN 46556, USA
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Kumar S, Sharma A, Samal RR, Kumar M, Verma V, Sagar RK, Singh SP, Raghavendra K. Laboratory evaluation of the efficacy of deltamethrin-laced attractive toxic sugar bait formulation on Anopheles stephensi. Malar J 2023; 22:92. [PMID: 36899429 PMCID: PMC10007731 DOI: 10.1186/s12936-023-04524-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Accepted: 03/06/2023] [Indexed: 03/12/2023] Open
Abstract
BACKGROUND Attractive toxic sugar bait (ATSB) is a promising "attract and kill"-based approach for mosquito control. It is a combination of flower nectar/fruit juice to attract the mosquitoes, sugar solution to stimulate feeding, and a toxin to kill them. Selecting an effective attractant and optimizing concentration of toxicant is significant in the formulation of ATSB. METHODS Current study formulated an ATSB using fruit juice, sugar and deltamethrin, a synthetic pyrethroid. It was evaluated against two laboratory strains of Anopheles stephensi. Initial studies evaluated comparative attractiveness of nine different fruit juices to An. stephensi adults. Nine ASBs were prepared by adding fermented juices of plum, guava, sweet lemon, orange, mango, pineapple, muskmelon, papaya, and watermelon with 10% sucrose solution (w/v) in 1:1 ratio. Cage bioassays were conducted to assess relative attraction potential of ASBs based on the number of mosquito landings on each and the most effective ASB was identified. Ten ATSBs were prepared by adding the identified ASB with different deltamethrin concentrations (0.015625-8.0 mg/10 mL) in 1:9 ratio. Each ATSB was assessed for the toxic potential against both the strains of An. stephensi. The data was statistically analysed using PASW (SPSS) software 19.0 program. RESULTS The cage bioassays with nine ASBs revealed higher efficacy (p < 0.05) of Guava juice-ASB > Plum juice-ASB > Mango juice-ASB in comparison to rest of the six ASB's. The bioassay with these three ASB's ascertained the highest attractancy potential of guava juice-ASB against both the strains of An. stephensi. The ATSB formulations resulted in 5.1-97.9% mortality in Sonepat (NIMR strain) with calculated LC30, LC50, and LC90 values of 0.17 mg deltamethrin/10 mL, 0.61 mg deltamethrin/10 mL, and 13.84 mg deltamethrin/10 mL ATSB, respectively. Whereas, 6.12-86.12% mortality was recorded in the GVD-Delhi (AND strain) with calculated LC30, LC50, and LC90 values of 0.25 mg deltamethrin/10 mL, 0.73 mg deltamethrin/10 mL and 10.22 mg deltamethrin/10 mL ATSB, respectively. CONCLUSION The ATSB formulated with guava juice-ASB and deltamethrin (0.0015625-0.8%) in 9:1 ratio showed promising results against two laboratory strains of An. stephensi. Field assessment of these formulations is being conducted to estimate their feasibility for use in mosquito control.
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Affiliation(s)
- Sarita Kumar
- Department of Zoology, Acharya Narendra Dev College, University of Delhi, Kalkaji, New Delhi, 110 019, India.
| | - Aarti Sharma
- Department of Zoology, Acharya Narendra Dev College, University of Delhi, Kalkaji, New Delhi, 110 019, India
| | - Roopa Rani Samal
- Department of Zoology, Acharya Narendra Dev College, University of Delhi, Kalkaji, New Delhi, 110 019, India
| | - Manoj Kumar
- Department of Zoology, Acharya Narendra Dev College, University of Delhi, Kalkaji, New Delhi, 110 019, India
| | - Vaishali Verma
- ICMR-National Institute of Malaria Research, Sector 8, Dwarka, New Delhi, 110 077, India
| | - Ravinder Kumar Sagar
- Department of Zoology, Acharya Narendra Dev College, University of Delhi, Kalkaji, New Delhi, 110 019, India
| | - Shri Pati Singh
- ICMR-National Institute of Malaria Research, Sector 8, Dwarka, New Delhi, 110 077, India
| | - Kamaraju Raghavendra
- ICMR-National Institute of Malaria Research, Sector 8, Dwarka, New Delhi, 110 077, India.,H. No. 28 B, Block ED, Pitampura, Delhi, 110 088, India
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Silva TTP, Teixeira AV, Silva ADAE. Pyriproxyfen Ingested With Attractive Toxic Sugar Baits Is Carried by the Feces and Reduces the Reproductive Potential of Adult Female Aedes aegypti (Diptera: Culicidae). JOURNAL OF MEDICAL ENTOMOLOGY 2021; 58:1264-1269. [PMID: 33511413 DOI: 10.1093/jme/tjaa265] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Indexed: 06/12/2023]
Abstract
In the search for new strategies to control Aedes aegypti Linnaeus (Diptera: Culicidae), several studies have successfully related pyriproxyfen (PPF) tarsal transference to breeding sites (autodissemination), as well as the sterilization potential of females exposed to PPF. Potential PPF autodissemination by mosquito feces after the ingestion of sugar baits has also been proposed. Therefore, the present work evaluated several parameters, e.g., fecal production, residuality under dry and aqueous conditions, PPF excretion affecting emergence inhibition (EI) by fecal deposits of Ae. aegypti fed with attractive toxic sugar baits (ATSBs) containing PPF as well as their reproductive potential. Females were fed with ATSBs offered as droplets and the feces were collected using filter paper and transferred to plastic cups with L3 larvae to evaluate EI. The residual effect of feces in aqueous and dry conditions and PPF excretion on EI was obtained by keeping the feces in water or dried for different time intervals and using feces collected at 24-h intervals, respectively. Females received a bloodmeal after feeding on ATSBs, eggs and larval counting expressed the reproductive potential. The fecal mass was not affected by PPF concentration, but EI increased from 33 to 54% as the PPF concentration increased. The PPF excretion in the feces exceeded 96 h. The residual effect in the EI for feces kept in water was reduced by more than 60% after 30 d but was not affected under dry conditions. The fecundity and fertility of the females were reduced up to 51% and 97%, respectively.
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Affiliation(s)
- Tarsis Tamar Pereira Silva
- Programa de Pós-Graduação em Biologia Experimental, Universidade Federal de Rondônia, Porto Velho, RO, Brazil
| | - Aurea Vieira Teixeira
- Programa de Pós-Graduação em Biologia Experimental, Universidade Federal de Rondônia, Porto Velho, RO, Brazil
| | - Alexandre de Almeida E Silva
- Programa de Pós-Graduação em Biologia Experimental, Universidade Federal de Rondônia, Porto Velho, RO, Brazil
- Laboratório de Bioecologia de Insetos, Universidade Federal de Rondônia, Porto Velho, RO, Brazil
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Opiyo MA, Ngowo HS, Mapua SA, Mpingwa M, Nchimbi N, Matowo NS, Majambere S, Okumu FO. Sub-lethal aquatic doses of pyriproxyfen may increase pyrethroid resistance in malaria mosquitoes. PLoS One 2021; 16:e0248538. [PMID: 33735241 PMCID: PMC7971891 DOI: 10.1371/journal.pone.0248538] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Accepted: 03/01/2021] [Indexed: 11/28/2022] Open
Abstract
BACKGROUND Pyriproxyfen (PPF), an insect growth hormone mimic is widely used as a larvicide and in some second-generation bed nets, where it is combined with pyrethroids to improve impact. It has also been evaluated as a candidate for auto-dissemination by adult mosquitoes to control Aedes and Anopheles species. We examined whether PPF added to larval habitats of pyrethroid-resistant malaria vectors can modulate levels of resistance among emergent adult mosquitoes. METHODOLOGY Third-instar larvae of pyrethroid-resistant Anopheles arabiensis (both laboratory-reared and field-collected) were reared in different PPF concentrations, between 1×10-9 milligrams active ingredient per litre of water (mgAI/L) and 1×10-4 mgAI/L, or no PPF at all. Emergent adults escaping these sub-lethal exposures were tested using WHO-standard susceptibility assays on pyrethroids (0.75% permethrin and 0.05% deltamethrin), carbamates (0.1% bendiocarb) and organochlorides (4% DDT). Biochemical basis of pyrethroid resistance was investigated by pre-exposure to 4% PBO. Bio-efficacies of long-lasting insecticide-treated nets, Olyset® and PermaNet 2.0 were also examined against adult mosquitoes with or without previous aquatic exposure to PPF. RESULTS Addition of sub-lethal doses of PPF to larval habitats of pyrethroid-resistant An. arabiensis, consistently resulted in significantly reduced mortalities of emergent adults when exposed to pyrethroids, but not to bendiocarb or DDT. Mortality rates after exposure to Olyset® nets, but not PermaNet 2.0 were also reduced following aquatic exposures to PPF. Pre-exposure to PBO followed by permethrin or deltamethrin resulted in significant increases in mortality, compared to either insecticide alone. CONCLUSIONS Partially-resistant mosquitoes exposed to sub-lethal aquatic concentrations of PPF may become more resistant to pyrethroids than they already are without such pre-exposures. Studies should be conducted to examine whether field applications of PPF, either by larviciding or other means actually exacerbates pyrethroid-resistance in areas where signs of such resistance already exist in wild the vector populations. The studies should also investigate mechanisms underlying such magnification of resistance, and how this may impact the potential of PPF-based interventions in areas with pyrethroid resistance.
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Affiliation(s)
- Mercy A. Opiyo
- Environmental Health and Ecological Sciences, Ifakara Health Institute, Ifakara, Tanzania
- Barcelona Institute for Global Health (ISGlobal), Hospital Clinic, Barcelona, Spain
- Centro de Investigação em Saúde de Manhiça (CISM), Maputo, Mozambique
| | - Halfan S. Ngowo
- Environmental Health and Ecological Sciences, Ifakara Health Institute, Ifakara, Tanzania
- Institute of Biodiversity, Animal Health, and Comparative Medicine, University of Glasgow, Glasgow, United Kingdom
| | - Salum A. Mapua
- Environmental Health and Ecological Sciences, Ifakara Health Institute, Ifakara, Tanzania
| | - Monica Mpingwa
- Environmental Health and Ecological Sciences, Ifakara Health Institute, Ifakara, Tanzania
| | - Nuru Nchimbi
- Environmental Health and Ecological Sciences, Ifakara Health Institute, Ifakara, Tanzania
| | - Nancy S. Matowo
- Environmental Health and Ecological Sciences, Ifakara Health Institute, Ifakara, Tanzania
- Swiss Tropical and Public Health Institute, Basel, Switzerland
- University of Basel, Basel, Switzerland
- Department of Disease Control, London School of Hygiene and Tropical Medicine, London, United Kingdom
| | - Silas Majambere
- Pan African Mosquito Control Association, PAMCA, KEMRI Headquarters, Nairobi, Kenya
| | - Fredros O. Okumu
- Environmental Health and Ecological Sciences, Ifakara Health Institute, Ifakara, Tanzania
- Institute of Biodiversity, Animal Health, and Comparative Medicine, University of Glasgow, Glasgow, United Kingdom
- School of Public Health, University of the Witwatersrand, Johannesburg, South Africa
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Parthasarathy R, Palli SR. Stage-specific action of juvenile hormone analogs. JOURNAL OF PESTICIDE SCIENCE 2021; 46:16-22. [PMID: 33746542 PMCID: PMC7953018 DOI: 10.1584/jpestics.d20-084] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Accepted: 01/08/2021] [Indexed: 06/12/2023]
Abstract
The discovery of juvenile hormones (JH) and their synthetic analogs (JHA) generated excitement and hope that these compounds will replace first- and second-generation insecticides that have not so desirable environmental and human safety profiles. However, JHAs used commercially during the past four decades did not meet these expectations. The recent availability of advanced molecular and histological methods and the discovery of key players involved in JH action provided some insights into the functioning of JHA in a stage and species-specific manner. In this review, we will summarize recent findings and stage-specific action of JHA, focusing on three commercially used JHA, methoprene, hydroprene and pyriproxyfen and economically important pests, the red flour beetle, Tribolium castaneum, and the tobacco budworm, Heliothis virescens, and disease vector, the yellow fever mosquito, Aedes aegypti.
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Affiliation(s)
- Ramaseshadri Parthasarathy
- Department of Entomology, University of Kentucky, College of Agriculture, Food and Environment, Lexington, KY, USA
| | - Subba Reddy Palli
- Department of Entomology, University of Kentucky, College of Agriculture, Food and Environment, Lexington, KY, USA
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Hustedt JC, Boyce R, Bradley J, Hii J, Alexander N. Use of pyriproxyfen in control of Aedes mosquitoes: A systematic review. PLoS Negl Trop Dis 2020; 14:e0008205. [PMID: 32530915 PMCID: PMC7314096 DOI: 10.1371/journal.pntd.0008205] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2019] [Revised: 06/24/2020] [Accepted: 03/10/2020] [Indexed: 01/11/2023] Open
Abstract
Dengue is the most rapidly spreading arboviral disease in the world. The current lack of fully protective vaccines and clinical therapeutics creates an urgent need to identify more effective means of controlling Aedes mosquitos, principally Aedes aegypti, as the main vector of dengue. Pyriproxyfen (PPF) is an increasingly used hormone analogue that prevents juvenile Aedes mosquitoes from becoming adults and being incapable of transmitting dengue. The objectives of the review were to (1) Determine the effect of PPF on endpoints including percentage inhibition of emergence to adulthood, larval mortality, and resistance ratios; and (2) Determine the different uses, strengths, and limitations of PPF in control of Aedes. A systematic search was applied to Pubmed, EMBASE, Web of Science, LILACS, Global Health, and the Cochrane database of Systematic Reviews. Out of 1,369 records, 90 studies met the inclusion criteria. Nearly all fit in one of the following four categories 1) Efficacy of granules, 2) Auto-dissemination/horizontal transfer, 3) use of ultra-low volume thermal fogging (ULV), thermal fogging (TF), or fumigant technologies, and 4) assessing mosquito resistance. PPF granules had consistently efficacious results of 90-100% inhibition of emergence for up to 90 days. The evidence is less robust but promising regarding PPF dust for auto-dissemination and the use of PPF in ULV, TF and fumigants. Several studies also found that while mosquito populations were still susceptible to PPF, the lethal concentrations increased among temephos-resistant mosquitoes compared to reference strains. The evidence is strong that PPF does increase immature mortality and adult inhibition in settings represented in the included studies, however future research should focus on areas where there is less evidence (e.g. auto-dissemination, sprays) and new use cases for PPF. A better understanding of the biological mechanisms of cross-resistance between PPF, temephos, and other insecticides will allow control programs to make better informed decisions.
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Affiliation(s)
- John Christian Hustedt
- MRC Tropical Epidemiology Group, Department of Infectious Disease Epidemiology, London School of Hygiene and Tropical Medicine, London, United Kingdom
- Epidemiology Department, Malaria Consortium, London, United Kingdom
| | - Ross Boyce
- Department of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, United States of America
| | - John Bradley
- MRC Tropical Epidemiology Group, Department of Infectious Disease Epidemiology, London School of Hygiene and Tropical Medicine, London, United Kingdom
| | - Jeffrey Hii
- Epidemiology Department, Malaria Consortium, London, United Kingdom
| | - Neal Alexander
- MRC Tropical Epidemiology Group, Department of Infectious Disease Epidemiology, London School of Hygiene and Tropical Medicine, London, United Kingdom
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Sippy R, Rivera GE, Sanchez V, Heras F, Morejón B, Beltrán E, Hikida RS, López-Latorre MA, Aguirre A, Stewart-Ibarra AM, Larsen DA, Neira M. Ingested insecticide to control Aedes aegypti: developing a novel dried attractive toxic sugar bait device for intra-domiciliary control. Parasit Vectors 2020; 13:78. [PMID: 32066486 PMCID: PMC7027216 DOI: 10.1186/s13071-020-3930-9] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2019] [Accepted: 02/03/2020] [Indexed: 01/31/2023] Open
Abstract
BACKGROUND Illnesses transmitted by Aedes aegypti (Linnaeus, 1762) such as dengue, chikungunya and Zika comprise a considerable global burden; mosquito control is the primary public health tool to reduce disease transmission. Current interventions are inadequate and insecticide resistance threatens the effectiveness of these options. Dried attractive bait stations (DABS) are a novel mechanism to deliver insecticide to Ae. aegypti. The DABS are a high-contrast 28 inch2 surface coated with dried sugar-boric acid solution. Aedes aegypti are attracted to DABS by visual cues only, and the dried sugar solution elicits an ingestion response from Ae. aegypti landing on the surface. The study presents the development of the DABS and tests of their impact on Ae. aegypti mortality in the laboratory and a series of semi-field trials. METHODS We conducted multiple series of laboratory and semi-field trials to assess the survivability of Ae. aegypti mosquitoes exposed to the DABS. In the laboratory experiments, we assessed the lethality, the killing mechanism, and the shelf life of the device through controlled experiments. In the semi-field trials, we released laboratory-reared female Ae. aegypti into experimental houses typical of peri-urban tropical communities in South America in three trial series with six replicates each. Laboratory experiments were conducted in Quito, Ecuador, and semi-field experiments were conducted in Machala, Ecuador, an area with abundant wild populations of Ae. aegypti and endemic arboviral transmission. RESULTS In the laboratory, complete lethality was observed after 48 hours regardless of physiological status of the mosquito. The killing mechanism was determined to be through ingestion, as the boric acid disrupted the gut of the mosquito. In experimental houses, total mosquito mortality was greater in the treatment house for all series of experiments (P < 0.0001). CONCLUSIONS The DABS devices were effective at killing female Ae. aegypti under a variety of laboratory and semi-field conditions. DABS are a promising intervention for interdomiciliary control of Ae. aegypti and arboviral disease prevention.
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Affiliation(s)
- Rachel Sippy
- Institute for Global Health & Translational Science, SUNY-Upstate Medical University, Syracuse, NY, USA.,Department of Geography, University of Florida, Gainesville, FL, USA
| | - Galo E Rivera
- Center for Research on Health in Latin America, Pontificia Universidad Católica del Ecuador, Quito, Ecuador.,Vector Biology Group, Max Plank Institute for Infection Biology, Berlin, Germany
| | - Valeria Sanchez
- Institute for Global Health & Translational Science, SUNY-Upstate Medical University, Syracuse, NY, USA.,Unidad Académica de Ciencias Químicas y de la Salud, Universidad Técnica de Machala, Machala, Ecuador
| | - Froilán Heras
- Institute for Global Health & Translational Science, SUNY-Upstate Medical University, Syracuse, NY, USA.,Unidad Académica de Ciencias Químicas y de la Salud, Universidad Técnica de Machala, Machala, Ecuador
| | - Bianca Morejón
- Center for Research on Health in Latin America, Pontificia Universidad Católica del Ecuador, Quito, Ecuador.,Biology Division, College of Arts and Sciences, Kansas State University, Manhattan, KS, USA
| | - Efraín Beltrán
- Unidad Académica de Ciencias Químicas y de la Salud, Universidad Técnica de Machala, Machala, Ecuador
| | | | - María A López-Latorre
- Center for Research on Health in Latin America, Pontificia Universidad Católica del Ecuador, Quito, Ecuador.,Medical School, College of Health Sciences, Universidad de las Américas, Quito, Ecuador
| | - Alex Aguirre
- Center for Research on Health in Latin America, Pontificia Universidad Católica del Ecuador, Quito, Ecuador
| | - Anna M Stewart-Ibarra
- Institute for Global Health & Translational Science, SUNY-Upstate Medical University, Syracuse, NY, USA. .,Department of Medicine, SUNY-Upstate Medical University, Syracuse, NY, USA. .,Department of Public Health and Preventative Medicine, SUNY-Upstate Medical University, Syracuse, NY, USA. .,InterAmerican Institute for Global Change Research (IAI), Montevideo, Uruguay.
| | - David A Larsen
- Department of Public Health, Syracuse University, Syracuse, NY, USA.
| | - Marco Neira
- Center for Research on Health in Latin America, Pontificia Universidad Católica del Ecuador, Quito, Ecuador.
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Sissoko F, Junnila A, Traore MM, Traore SF, Doumbia S, Dembele SM, Schlein Y, Traore AS, Gergely P, Xue RD, Arheart KL, Revay EE, Kravchenko VD, Beier JC, Müller GC. Frequent sugar feeding behavior by Aedes aegypti in Bamako, Mali makes them ideal candidates for control with attractive toxic sugar baits (ATSB). PLoS One 2019; 14:e0214170. [PMID: 31206547 PMCID: PMC6576782 DOI: 10.1371/journal.pone.0214170] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2019] [Accepted: 04/18/2019] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND Current tools and strategies are not sufficient to reliably address threats and outbreaks of arboviruses including Zika, dengue, chikungunya, and yellow fever. Hence there is a growing public health challenge to identify the best new control tools to use against the vector Aedes aegypti. In this study, we investigated Ae. aegypti sugar feeding strategies in Bamako, Mali, to determine if this species can be controlled effectively using attractive toxic sugar baits (ATSB). METHODOLOGY We determined the relative attraction of Ae. aegypti males and females to a variety of sugar sources including flowers, fruits, seedpods, and honeydew in the laboratory and using plant-baited traps in the field. Next, we observed the rhythm of blood feeding versus sugar feeding activity of Ae. aegypti in vegetation and in open areas. Finally, we studied the effectiveness of spraying vegetation with ATSB on Ae. aegypti in sugar rich (lush vegetation) and in sugar poor (sparse vegetation) urban environments. PRINCIPAL FINDINGS Male and female laboratory sugar feeding rates within 24 h, on 8 of 16 plants offered were over 80%. The survival rates of mosquitoes on several plant sources were nearly as long as that of controls maintained on sucrose solution. In the field, females were highly attracted to 11 of 20 sugar sources, and 8 of these were attractive to males. Peak periods of host attraction for blood-feeding and sugar feeding in open areas were nearly identical and occurred shortly after sunrise and around sunset. In shaded areas, the first sugar-seeking peak occurred between 11:30 and 12:30 while the second was from 16:30 to 17:30. In a 50-day field trial, ATSB significantly reduced mean numbers of landing / biting female Ae. aegypti in the two types of vegetation. At sugar poor sites, the mean pre-treatment catch of 20.51 females on day 14 was reduced 70-fold to 0.29 on day 50. At sugar rich sites, the mean pre-treatment catch of 32.46 females on day 14 was reduced 10-fold to a mean of 3.20 females on day 50. CONCLUSIONS This is the first study to show how the vector Ae. aegypti depends on environmental resources of sugar for feeding and survival. The demonstration that Ae. aegypti populations rapidly collapsed after ATSB treatment, in both sugar rich and sugar poor environments, is strong evidence that Ae. aegypti is sugar-feeding frequently. Indeed, this study clearly demonstrates that Ae. aegypti mosquitoes depend on natural sugar resources, and a promising new method for vector control, ATSB, can be highly effective in the fight against Aedes-transmitted diseases.
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Affiliation(s)
- Fatoumata Sissoko
- Malaria Research and Training Center, Faculty of Medicine, Pharmacy and Odonto-Stomatology, University of Sciences, Techniques and Technology of Bamako, Bamako, Mali
| | - Amy Junnila
- Department of Microbiology and Molecular Genetics, IMRIC, Kuvin Centre for the Study of Infectious and Tropical Diseases, Faculty of Medicine, Hebrew University, Jerusalem, Israel
| | - Mohamad M. Traore
- Malaria Research and Training Center, Faculty of Medicine, Pharmacy and Odonto-Stomatology, University of Sciences, Techniques and Technology of Bamako, Bamako, Mali
| | - Sekou F. Traore
- Malaria Research and Training Center, Faculty of Medicine, Pharmacy and Odonto-Stomatology, University of Sciences, Techniques and Technology of Bamako, Bamako, Mali
| | - Seydou Doumbia
- Malaria Research and Training Center, Faculty of Medicine, Pharmacy and Odonto-Stomatology, University of Sciences, Techniques and Technology of Bamako, Bamako, Mali
| | - Seydou Mamadou Dembele
- Malaria Research and Training Center, Faculty of Medicine, Pharmacy and Odonto-Stomatology, University of Sciences, Techniques and Technology of Bamako, Bamako, Mali
| | - Yosef Schlein
- Department of Microbiology and Molecular Genetics, IMRIC, Kuvin Centre for the Study of Infectious and Tropical Diseases, Faculty of Medicine, Hebrew University, Jerusalem, Israel
| | - Amadou Sekou Traore
- Malaria Research and Training Center, Faculty of Medicine, Pharmacy and Odonto-Stomatology, University of Sciences, Techniques and Technology of Bamako, Bamako, Mali
| | | | - Rui-De Xue
- Anastasia Mosquito Control District, St. Augustine, FL, United States of America
| | - Kristopher L. Arheart
- Department of Public Health Sciences, Miller School of Medicine, University of Miami, Miami, Florida, United States of America
| | - Edita E. Revay
- Department of Anatomy and Cell Biology, Bruce Rappaport Faculty of Medicine, Technion, Haifa, Israel
| | | | - John C. Beier
- Department of Public Health Sciences, Miller School of Medicine, University of Miami, Miami, Florida, United States of America
| | - Gunter C. Müller
- Malaria Research and Training Center, Faculty of Medicine, Pharmacy and Odonto-Stomatology, University of Sciences, Techniques and Technology of Bamako, Bamako, Mali
- Department of Microbiology and Molecular Genetics, IMRIC, Kuvin Centre for the Study of Infectious and Tropical Diseases, Faculty of Medicine, Hebrew University, Jerusalem, Israel
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Mosquito-Borne Diseases: Prevention Is the Cure for Dengue, Chikungunya and Zika Viruses. PARASITOLOGY RESEARCH MONOGRAPHS 2018. [DOI: 10.1007/978-3-319-94075-5_11] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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Corbel V, Fonseca DM, Weetman D, Pinto J, Achee NL, Chandre F, Coulibaly MB, Dusfour I, Grieco J, Juntarajumnong W, Lenhart A, Martins AJ, Moyes C, Ng LC, Raghavendra K, Vatandoost H, Vontas J, Muller P, Kasai S, Fouque F, Velayudhan R, Durot C, David JP. International workshop on insecticide resistance in vectors of arboviruses, December 2016, Rio de Janeiro, Brazil. Parasit Vectors 2017; 10:278. [PMID: 28577363 PMCID: PMC5457540 DOI: 10.1186/s13071-017-2224-3] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2017] [Accepted: 05/26/2017] [Indexed: 11/21/2022] Open
Abstract
Vector-borne diseases transmitted by insect vectors such as mosquitoes occur in over 100 countries and affect almost half of the world’s population. Dengue is currently the most prevalent arboviral disease but chikungunya, Zika and yellow fever show increasing prevalence and severity. Vector control, mainly by the use of insecticides, play a key role in disease prevention but the use of the same chemicals for more than 40 years, together with the dissemination of mosquitoes by trade and environmental changes, resulted in the global spread of insecticide resistance. In this context, innovative tools and strategies for vector control, including the management of resistance, are urgently needed. This report summarizes the main outputs of the first international workshop on Insecticide resistance in vectors of arboviruses held in Rio de Janeiro, Brazil, 5–8 December 2016. The primary aims of this workshop were to identify strategies for the development and implementation of standardized insecticide resistance management, also to allow comparisons across nations and across time, and to define research priorities for control of vectors of arboviruses. The workshop brought together 163 participants from 28 nationalities and was accessible, live, through the web (> 70,000 web-accesses over 3 days).
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Affiliation(s)
- Vincent Corbel
- Institut de Recherche pour le Développement (IRD), Maladies Infectieuses et Vecteurs, Ecologie, Génétique, Evolution et Contrôle (MIVEGEC, UM1-CNRS 5290-IRD 224), B.P. 64501, 911 Avenue Agropolis, 34394, Cedex 5, Montpellier, France.
| | - Dina M Fonseca
- Rutgers University (RU), Center for Vector Biology, 180 Jones Avenue, New Brunswick, NJ, 08901, USA
| | - David Weetman
- Liverpool School of Tropical Medicine (LSTM), Department of Vector Biology, Pembroke Place, Liverpool, L35QA, UK
| | - João Pinto
- Global Health and Tropical Medicine, GHTM, Instituto de Higiene e Medicina Tropical, IHMT, Universidade Nova de Lisboa, UNL, Rua da Junqueira 100, 1349-008, Lisbon, Portugal
| | - Nicole L Achee
- Department of Biological Sciences, University of Notre Dame (UND), Eck Institute for Global Health, 239 Galvin Life Science Center, Notre Dame, Indiana, 46556, USA
| | - Fabrice Chandre
- Institut de Recherche pour le Développement (IRD), Maladies Infectieuses et Vecteurs, Ecologie, Génétique, Evolution et Contrôle (MIVEGEC, UM1-CNRS 5290-IRD 224), B.P. 64501, 911 Avenue Agropolis, 34394, Cedex 5, Montpellier, France
| | - Mamadou B Coulibaly
- Malaria Research and Training Center (MRTC), Point G, Bamako, B.P, 1805, Mali
| | - Isabelle Dusfour
- Institut Pasteur de la Guyane (IPG), 23 avenue Pasteur B.P. 6010, 97306, Cedex, Cayenne, French Guiana
| | - John Grieco
- Department of Biological Sciences, University of Notre Dame (UND), Eck Institute for Global Health, 239 Galvin Life Science Center, Notre Dame, Indiana, 46556, USA
| | - Waraporn Juntarajumnong
- Department of Entomology, Kasetsart University (KU), 50 Ngam Wong Wan Rd, Ladyaow, Bangkok, Chatuchak, 10900, Thailand
| | - Audrey Lenhart
- Center for Global Health/Division of Parasitic Diseases and Malaria/Entomology Branch, U.S. Centers for Disease Control and Prevention (CDC), 1600 Clifton Rd. NE, MS G-49; Bldg. 23, Atlanta, GA, 30329, USA
| | - Ademir J Martins
- Instituto Oswaldo Cruz (Fiocruz), Avenida Brasil 4365, Rio de Janeiro/RJ CEP, Manguinhos, 21040-360, Brazil
| | - Catherine Moyes
- Big Data Institute, Li Ka Shing Centre for Health Information and Discovery, University of Oxford, Oxford, OX3 7LF, UK
| | - Lee Ching Ng
- Environmental Health Institute (EHI), National Environment Agency (NEA), 11 Biopolis Way, Helios Block, #04-03/04 & #06-05/08, Singapore, Republic of Singapore
| | - Kamaraju Raghavendra
- National Institute of Malaria Research (NIMR), Department of Health Research, GoI Sector 8, Dwarka, Delhi, 110 077, India
| | - Hassan Vatandoost
- Department of Medical Entomology & Vector Control, School of Public Health and Institute for Environmental Research, Tehran University of Medical Sciences (TUMS), Pour Sina Street, P.O. Box: 14155-6446, Tehran, Iran
| | - John Vontas
- Institute Molecular Biology and Biotechnology (IMBB), Foundation for Research and Technology (FORTH), Panepistimioupoli, Voutes, 70013, Heraklio, Crete, Greece.,Pesticide Science Laboratory, Agricultural University of Athens, Ieara Odoes 75, 118, Athens, Greece
| | - Pie Muller
- Department of Epidemiology and Public Health, Swiss Tropical and Public Health Institute, Socinstrasse 57, PO Box 4002, Basel, Switzerland
| | - Shinji Kasai
- Department of Medical Entomology, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjukuku, Tokyo, Japan
| | - Florence Fouque
- Vector Environment and Society Unit, The Special Programme for Research and Training in Tropical Diseases World Health Organization, 20, avenue Appia, CH-1211, 27, Geneva, Switzerland
| | - Raman Velayudhan
- Vector Ecology and Management, Department of Control of Neglected Tropical Diseases (HTM/NTD), World Health Organization, 20 Avenue Appia, CH-1211, 27, Geneva, Switzerland
| | - Claire Durot
- Institut de Recherche pour le Développement (IRD), Maladies Infectieuses et Vecteurs, Ecologie, Génétique, Evolution et Contrôle (MIVEGEC, UM1-CNRS 5290-IRD 224), B.P. 64501, 911 Avenue Agropolis, 34394, Cedex 5, Montpellier, France
| | - Jean-Philippe David
- Centre National de la Recherche Scientifique (CNRS), Laboratoire d'Ecologie Alpine (LECA), UMR 5553 CNRS Université Grenoble-Alpes, Domaine universitaire de Saint-Martin d'Hères, 2233 rue de la piscine, 38041, Cedex 9, Grenoble, France.
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