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Sarker R, Roknuzzaman ASM, Haque MA, Islam MR, Kabir ER. Upsurge of dengue outbreaks in several WHO regions: Public awareness, vector control activities, and international collaborations are key to prevent spread. Health Sci Rep 2024; 7:e2034. [PMID: 38655420 PMCID: PMC11035754 DOI: 10.1002/hsr2.2034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Revised: 11/10/2023] [Accepted: 03/19/2024] [Indexed: 04/26/2024] Open
Abstract
Background Dengue, the world's fastest-growing vector-borne disease, has skyrocketed in the 21st century. Dengue has harmed human health since its first known cases among Spanish soldiers in the Philippines to its 21st-century outbreaks in Southeast Asia, the Pacific, and the Americas. In light of the current circumstances, it is imperative to investigate its origin and prevalence, enabling the implementation of effective interventions to curb the upsurge. Methods Our study examines the history of dengue outbreaks, and evolving impact on public health, aiming to offer valuable insights for a more resilient public health response worldwide. In this comprehensive review, we incorporated data from renowned databases such as PubMed, Google Scholar, and Scopus to provide a thorough analysis of dengue outbreaks. Results Recent dengue outbreaks are associated with rapid urbanization, international travel, climatic change, and socioeconomic factors. Rapid urbanization and poor urban design and sanitation have created mosquito breeding places for dengue vectors. Also, international travel and trade have spread the pathogen. Climate change in the past two decades has favored mosquito habitats and outbreaks. Socioeconomic differences have also amplified the impact of dengue outbreaks on vulnerable communities. Dengue mitigation requires vector control, community engagement, healthcare strengthening, and international cooperation. Conclusion Climate change adaptation and urban planning are crucial. Although problems remain, a comprehensive vector control and community involvement plan may reduce dengue epidemics and improve public health in our interconnected world.
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Affiliation(s)
- Rapty Sarker
- Department of PharmacyUniversity of Asia PacificDhakaBangladesh
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Srisawat N, Gubler DJ, Pangestu T, Limothai U, Thisyakorn U, Ismail Z, Goh D, Capeding MR, Bravo L, Yoksan S, Tantawichien T, Hadinegoro SR, Rafiq K, Picot VS, Ooi EE. Proceedings of the 6th Asia Dengue Summit, June 2023. PLoS Negl Trop Dis 2024; 18:e0012060. [PMID: 38551892 PMCID: PMC10980189 DOI: 10.1371/journal.pntd.0012060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/01/2024] Open
Abstract
The 6th Asia Dengue Summit (ADS) themed "Road Map to Zero Dengue Death" was held in Thailand from 15th-16th June 2023. The summit was hosted by Tropical Medicine Cluster, Chulalongkorn University, Bangkok, Thailand in conjunction with Queen Saovabha Memorial Institute, The Thai Red Cross Society; Faculty of Tropical Medicine, Mahidol University; and the Ministry of Public Health. The 6th ADS was convened by Asia Dengue Voice and Action (ADVA); Global Dengue and Aedes Transmitted Diseases Consortium (GDAC); Southeast Asian Ministers of Education Tropical Medicine and Public Health Network (SEAMEO TROPMED); Fondation Mérieux (FMx) and the International Society for Neglected Tropical Diseases (ISNTD). Dengue experts from academia and research, and representatives from the Ministries of Health, Regional and Global World Health Organization (WHO) and International Vaccine Institute (IVI) participated in the three-day summit. With more than 51 speakers and 451 delegates from over 24 countries, 10 symposiums, and 2 full days, the 6th ADS highlighted the growing threat of dengue and its antigenic evolution, flagged the urgent need to overcome vaccine hesitancy and misinformation crisis, and focused on dengue control policies, newer diagnostics, therapeutics and vaccines, travel-associated dengue, and strategies to improve community involvement.
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Affiliation(s)
- Nattachai Srisawat
- Tropical Medicine Cluster, Center of Excellence in Critical Care Nephrology, Faculty of Medicine, Chulalongkorn University, Excellence Center for Critical Care Nephrology, King Chulalongkorn Memorial Hospital, Thailand
| | - Duane J. Gubler
- Program in Emerging Infectious Diseases, Duke-NUS Medical School, Singapore
| | - Tikki Pangestu
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Umaporn Limothai
- Tropical Medicine Cluster, Center of Excellence in Critical Care Nephrology, Faculty of Medicine, Chulalongkorn University, Excellence Center for Critical Care Nephrology, King Chulalongkorn Memorial Hospital, Thailand
| | - Usa Thisyakorn
- Tropical Medicine Cluster, Chulalongkorn University and Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
| | - Zulkifli Ismail
- Department of Pediatrics, KPJ Selangor Specialist Hospital, Malaysia
| | - Daniel Goh
- Division of Paediatric Pulmonary Medicine and Sleep, Khoo Teck Puat National University Children’s Medical Institute, National University Hospital, Singapore
| | | | - Lulu Bravo
- University of the Philippines Manila, Manila, the Philippines
| | - Sutee Yoksan
- Center for Vaccine Development, Institute of Molecular Biosciences, Mahidol University, Bangkok, Thailand
| | - Terapong Tantawichien
- Division of Infectious Diseases, Department of Medicine and Tropical Medicine Cluster, Chulalongkorn University, Bangkok, Thailand
| | - Sri Rezeki Hadinegoro
- Department of Child Health, Faculty of Medicine Universitas Indonesia, Jakarta, Indonesia
| | - Kamran Rafiq
- International Society of Neglected Tropical Diseases, London, United Kingdom
| | | | - Eng Eong Ooi
- Program in Emerging Infectious Diseases, Duke-NUS Medical School, Singapore
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Mysore K, Njoroge TM, Stewart ATM, Winter N, Hamid-Adiamoh M, Sun L, Feng RS, James LD, Mohammed A, Severson DW, Duman-Scheel M. Characterization of a novel RNAi yeast insecticide that silences mosquito 5-HT1 receptor genes. Sci Rep 2023; 13:22511. [PMID: 38110471 PMCID: PMC10728091 DOI: 10.1038/s41598-023-49799-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Accepted: 12/12/2023] [Indexed: 12/20/2023] Open
Abstract
G protein-coupled receptors (GPCRs), which regulate numerous intracellular signaling cascades that mediate many essential physiological processes, are attractive yet underexploited insecticide targets. RNA interference (RNAi) technology could facilitate the custom design of environmentally safe pesticides that target GPCRs in select target pests yet are not toxic to non-target species. This study investigates the hypothesis that an RNAi yeast insecticide designed to silence mosquito serotonin receptor 1 (5-HTR1) genes can kill mosquitoes without harming non-target arthropods. 5-HTR.426, a Saccharomyces cerevisiae strain that expresses an shRNA targeting a site specifically conserved in mosquito 5-HTR1 genes, was generated. The yeast can be heat-inactivated and delivered to mosquito larvae as ready-to-use tablets or to adult mosquitoes using attractive targeted sugar baits (ATSBs). The results of laboratory and outdoor semi-field trials demonstrated that consumption of 5-HTR.426 yeast results in highly significant mortality rates in Aedes, Anopheles, and Culex mosquito larvae and adults. Yeast consumption resulted in significant 5-HTR1 silencing and severe neural defects in the mosquito brain but was not found to be toxic to non-target arthropods. These results indicate that RNAi insecticide technology can facilitate selective targeting of GPCRs in intended pests without impacting GPCR activity in non-targeted organisms. In future studies, scaled production of yeast expressing the 5-HTR.426 RNAi insecticide could facilitate field trials to further evaluate this promising new mosquito control intervention.
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Affiliation(s)
- Keshava Mysore
- Department of Medical and Molecular Genetics, Indiana University School of Medicine, Raclin-Carmichael Hall, 1234 Notre Dame Ave., South Bend, IN, 46617, USA
- The University of Notre Dame Eck Institute for Global Health, Notre Dame, IN, USA
| | - Teresia M Njoroge
- Department of Medical and Molecular Genetics, Indiana University School of Medicine, Raclin-Carmichael Hall, 1234 Notre Dame Ave., South Bend, IN, 46617, USA
- The University of Notre Dame Eck Institute for Global Health, Notre Dame, IN, USA
| | - Akilah T M Stewart
- Department of Medical and Molecular Genetics, Indiana University School of Medicine, Raclin-Carmichael Hall, 1234 Notre Dame Ave., South Bend, IN, 46617, USA
- The University of Notre Dame Eck Institute for Global Health, Notre Dame, IN, USA
| | - Nikhella Winter
- Department of Life Sciences, Faculty of Science & Technology, The University of the West Indies, St. Augustine Campus, Trinidad and Tobago, Spain
| | - 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
- The University of Notre Dame Eck Institute for Global Health, Notre Dame, IN, USA
| | - Longhua Sun
- Department of Medical and Molecular Genetics, Indiana University School of Medicine, Raclin-Carmichael Hall, 1234 Notre Dame Ave., South Bend, IN, 46617, USA
- The University of Notre Dame Eck Institute for Global Health, Notre Dame, IN, USA
| | - Rachel Shui Feng
- Department of Life Sciences, Faculty of Science & Technology, The University of the West Indies, St. Augustine Campus, Trinidad and Tobago, Spain
| | - Lester D James
- Department of Life Sciences, Faculty of Science & Technology, The University of the West Indies, St. Augustine Campus, Trinidad and Tobago, Spain
| | - Azad Mohammed
- Department of Life Sciences, Faculty of Science & Technology, The University of the West Indies, St. Augustine Campus, Trinidad and Tobago, Spain
| | - David W Severson
- Department of Medical and Molecular Genetics, Indiana University School of Medicine, Raclin-Carmichael Hall, 1234 Notre Dame Ave., South Bend, IN, 46617, USA
- The University of Notre Dame Eck Institute for Global Health, Notre Dame, IN, USA
- Department of Life Sciences, Faculty of Science & Technology, The University of the West Indies, St. Augustine Campus, Trinidad and Tobago, Spain
- Department of Biological Sciences, The University of Notre Dame, Notre Dame, IN, 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.
- The University of Notre Dame Eck Institute for Global Health, Notre Dame, IN, USA.
- Department of Biological Sciences, The University of Notre Dame, Notre Dame, IN, USA.
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Brizzee C, Mysore K, Njoroge TM, McConnell S, Hamid-Adiamoh M, Stewart ATM, Kinder JT, Crawford J, Duman-Scheel M. Targeting Mosquitoes through Generation of an Insecticidal RNAi Yeast Strain Using Cas-CLOVER and Super PiggyBac Engineering in Saccharomyces cerevisiae. J Fungi (Basel) 2023; 9:1056. [PMID: 37998862 PMCID: PMC10672312 DOI: 10.3390/jof9111056] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Revised: 09/28/2023] [Accepted: 10/24/2023] [Indexed: 11/25/2023] Open
Abstract
The global deployment of RNAi yeast insecticides involves transitioning from the use of laboratory yeast strains to more robust strains that are suitable for scaled fermentation. In this investigation, the RNA-guided Cas-CLOVER system was used in combination with Piggybac transposase to produce robust Saccharomyces cerevisiae strains with multiple integrated copies of the Sh.463 short hairpin RNA (shRNA) insecticide expression cassette. This enabled the constitutive high-level expression of an insecticidal shRNA corresponding to a target sequence that is conserved in mosquito Shaker genes, but which is not found in non-target organisms. Top-expressing Cas-CLOVER strains performed well in insecticide trials conducted on Aedes, Culex, and Anopheles larvae and adult mosquitoes, which died following consumption of the yeast. Scaled fermentation facilitated the kilogram-scale production of the yeast, which was subsequently heat-killed and dried. These studies indicate that RNAi yeast insecticide production can be scaled, an advancement that may one day facilitate the global distribution of this new mosquito control intervention.
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Affiliation(s)
- Corey Brizzee
- Demeetra Ag Bio, 2277 Thunderstick Dr. Suite 300, Lexington, KY 40505, USA; (C.B.); (S.M.); (J.T.K.)
| | - Keshava Mysore
- Department of Medical and Molecular Genetics, Indiana University School of Medicine, 1234 Notre Dame Ave., South Bend, IN 46617, USA; (K.M.); (T.M.N.); (M.H.-A.); (A.T.M.S.)
- Eck Institute for Global Health, The University of Notre Dame, Notre Dame, IN 46556, USA
| | - Teresia M. Njoroge
- Department of Medical and Molecular Genetics, Indiana University School of Medicine, 1234 Notre Dame Ave., South Bend, IN 46617, USA; (K.M.); (T.M.N.); (M.H.-A.); (A.T.M.S.)
- Eck Institute for Global Health, The University of Notre Dame, Notre Dame, IN 46556, USA
| | - Seth McConnell
- Demeetra Ag Bio, 2277 Thunderstick Dr. Suite 300, Lexington, KY 40505, USA; (C.B.); (S.M.); (J.T.K.)
| | - Majidah Hamid-Adiamoh
- Department of Medical and Molecular Genetics, Indiana University School of Medicine, 1234 Notre Dame Ave., South Bend, IN 46617, USA; (K.M.); (T.M.N.); (M.H.-A.); (A.T.M.S.)
- Eck Institute for Global Health, The University of Notre Dame, Notre Dame, IN 46556, USA
| | - Akilah T. M. Stewart
- Department of Medical and Molecular Genetics, Indiana University School of Medicine, 1234 Notre Dame Ave., South Bend, IN 46617, USA; (K.M.); (T.M.N.); (M.H.-A.); (A.T.M.S.)
- Eck Institute for Global Health, The University of Notre Dame, Notre Dame, IN 46556, USA
| | - J. Tyler Kinder
- Demeetra Ag Bio, 2277 Thunderstick Dr. Suite 300, Lexington, KY 40505, USA; (C.B.); (S.M.); (J.T.K.)
| | - Jack Crawford
- Demeetra Ag Bio, 2277 Thunderstick Dr. Suite 300, Lexington, KY 40505, USA; (C.B.); (S.M.); (J.T.K.)
| | - Molly Duman-Scheel
- Department of Medical and Molecular Genetics, Indiana University School of Medicine, 1234 Notre Dame Ave., South Bend, IN 46617, USA; (K.M.); (T.M.N.); (M.H.-A.); (A.T.M.S.)
- Eck Institute for Global Health, The University of Notre Dame, Notre Dame, IN 46556, USA
- Department of Biological Sciences, The University of Notre Dame, Notre Dame, IN 46556, USA
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Guerrero A, Reddy GVP. Chemical Communication in Insects: New Advances in Integrated Pest Management Strategies. INSECTS 2023; 14:799. [PMID: 37887811 PMCID: PMC10607249 DOI: 10.3390/insects14100799] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Revised: 09/28/2023] [Accepted: 09/30/2023] [Indexed: 10/28/2023]
Abstract
Chemical communication plays a pivotal role in many insect behaviors, including food-seeking, recruitment, the recognition of congeners, reproduction, alarm, territorial marking, and survival [...].
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Affiliation(s)
- Angel Guerrero
- Department of Biological Chemistry, Institute of Advanced Chemistry of Catalonia—CSIC, 08034 Barcelona, Spain
| | - Gadi V. P. Reddy
- Southern Insect Management Research Unit, United States Department of Agriculture (USDA)—Agricultural Research Service (ARS), Stoneville, MS 38776, USA;
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