Three-year surveillance of culicine mosquitoes (Diptera: Culicidae) for flavivirus infections in Incheon Metropolitan City and Hwaseong-si of Gyeonggi-do Province, Republic of Korea
Japanese encephalitis virus (JEV) is a single stranded positive sense RNA virus of the genus Flavivirus that belongs to family Flaviviridae and emerged as one of the most pivotal form of viral encephalitis. The virus is transmitted to humans by mosquito vector and is an etiological agent of acute zo...
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| Veröffentlicht in: | Acta tropica 2020-02, Vol.202, p.105258-105258, Article 105258 |
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| creator | Jegal, Seung Jun, Hojong Kim-Jeon, Myung-Deok Park, Seo Hye Ahn, Seong Kyu Lee, Jinyoung Gong, Young Woo Joo, Kwangsig Kwon, Mun Ju Roh, Jong Yul Lee, Wook-Gyo Lee, Woojoo Bahk, Young Yil Kim, Tong-Soo |
| description | Japanese encephalitis virus (JEV) is a single stranded positive sense RNA virus of the genus Flavivirus that belongs to family Flaviviridae and emerged as one of the most pivotal form of viral encephalitis. The virus is transmitted to humans by mosquito vector and is an etiological agent of acute zoonotic infection. In this study, we investigated distribution and density over 3-year period in central regions of Korean peninsula. We selected two cities as mosquito-collecting locations and subdivided them into five collection sites; downtown Incheon Metropolitan City as a typical urban area, and the Hwaseong-si area as a rural area. A total of 35,445 female culicine mosquitoes were collected using black light traps or BG Sentinel™ traps from March to November 2016–2018. Aedes (Ae.) vexans nipponii was the most frequently collected specimens (48.91%), followed by Culex (Cx.) pipiens (32.05%), Ochlerotatus (Och.) dorsalis (13.58%), Och. koreicus (1.68%), and Cx. tritaeniorhynchus (1.49%). In the urban area, Cx. pipiens was the predominant species (92.21%) and the other species accounted for |
| doi_str_mv | 10.1016/j.actatropica.2019.105258 |
| format | Article |
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The virus is transmitted to humans by mosquito vector and is an etiological agent of acute zoonotic infection. In this study, we investigated distribution and density over 3-year period in central regions of Korean peninsula. We selected two cities as mosquito-collecting locations and subdivided them into five collection sites; downtown Incheon Metropolitan City as a typical urban area, and the Hwaseong-si area as a rural area. A total of 35,445 female culicine mosquitoes were collected using black light traps or BG Sentinel™ traps from March to November 2016–2018. Aedes (Ae.) vexans nipponii was the most frequently collected specimens (48.91%), followed by Culex (Cx.) pipiens (32.05%), Ochlerotatus (Och.) dorsalis (13.58%), Och. koreicus (1.68%), and Cx. tritaeniorhynchus (1.49%). In the urban area, Cx. pipiens was the predominant species (92.21%) and the other species accounted for <5% of the total mosquitoes collected. However, in the rural area, Ae. vexans nipponii had the highest population (61.90%), followed by Och. dorsalis (17.10%), Cx. tritaeniorhynchus (1.84%) and Och, koreicus (1.78%). Culicine mosquitoes were identified at the species level, placed in pools of up to 30 mosquitoes each, and screened for flavivirus RNA using the SYBR Green-based RT-PCR. Three of the assayed 1092 pools were positive for Chaoyang virus from Ae. vexans nipponii and Japanese encephalitis virus from Cx. pipiens. The maximum likelihood estimations (the estimated number of virus-positive mosquitoes/1000 mosquitoes) for Ae. vexans nipponii positive for Chaoyang virus and Cx. pipiens for Japanese encephalitis virus were 3.095 and 0.20, respectively. The results of our study demonstrate that although mosquito-borne diseases were not detected in the potential vectors, enhanced monitoring and long-term surveillance of these vector viruses are of great public health importance.</description><identifier>ISSN: 0001-706X</identifier><identifier>EISSN: 1873-6254</identifier><identifier>DOI: 10.1016/j.actatropica.2019.105258</identifier><identifier>PMID: 31733189</identifier><language>eng</language><publisher>Netherlands: Elsevier B.V</publisher><subject>Climate change ; Flavivirus ; Long-term surveillance ; Mosquito ; Tsutsugamushi ; Urban infection ; Vector-borne diseases</subject><ispartof>Acta tropica, 2020-02, Vol.202, p.105258-105258, Article 105258</ispartof><rights>2019 The Authors</rights><rights>Copyright © 2019 The Authors. Published by Elsevier B.V. All rights reserved.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c428t-56b711907e86a4c3e55e409e541e43eb7f79df8bb1e4e567d1be69c78c4ac83d3</citedby><cites>FETCH-LOGICAL-c428t-56b711907e86a4c3e55e409e541e43eb7f79df8bb1e4e567d1be69c78c4ac83d3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S0001706X19304255$$EHTML$$P50$$Gelsevier$$Hfree_for_read</linktohtml><link.rule.ids>314,776,780,3537,27901,27902,65306</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/31733189$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Jegal, Seung</creatorcontrib><creatorcontrib>Jun, Hojong</creatorcontrib><creatorcontrib>Kim-Jeon, Myung-Deok</creatorcontrib><creatorcontrib>Park, Seo Hye</creatorcontrib><creatorcontrib>Ahn, Seong Kyu</creatorcontrib><creatorcontrib>Lee, Jinyoung</creatorcontrib><creatorcontrib>Gong, Young Woo</creatorcontrib><creatorcontrib>Joo, Kwangsig</creatorcontrib><creatorcontrib>Kwon, Mun Ju</creatorcontrib><creatorcontrib>Roh, Jong Yul</creatorcontrib><creatorcontrib>Lee, Wook-Gyo</creatorcontrib><creatorcontrib>Lee, Woojoo</creatorcontrib><creatorcontrib>Bahk, Young Yil</creatorcontrib><creatorcontrib>Kim, Tong-Soo</creatorcontrib><title>Three-year surveillance of culicine mosquitoes (Diptera: Culicidae) for flavivirus infections in Incheon Metropolitan City and Hwaseong-si of Gyeonggi-do Province, Republic of Korea</title><title>Acta tropica</title><addtitle>Acta Trop</addtitle><description>Japanese encephalitis virus (JEV) is a single stranded positive sense RNA virus of the genus Flavivirus that belongs to family Flaviviridae and emerged as one of the most pivotal form of viral encephalitis. 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The virus is transmitted to humans by mosquito vector and is an etiological agent of acute zoonotic infection. In this study, we investigated distribution and density over 3-year period in central regions of Korean peninsula. We selected two cities as mosquito-collecting locations and subdivided them into five collection sites; downtown Incheon Metropolitan City as a typical urban area, and the Hwaseong-si area as a rural area. A total of 35,445 female culicine mosquitoes were collected using black light traps or BG Sentinel™ traps from March to November 2016–2018. Aedes (Ae.) vexans nipponii was the most frequently collected specimens (48.91%), followed by Culex (Cx.) pipiens (32.05%), Ochlerotatus (Och.) dorsalis (13.58%), Och. koreicus (1.68%), and Cx. tritaeniorhynchus (1.49%). In the urban area, Cx. pipiens was the predominant species (92.21%) and the other species accounted for <5% of the total mosquitoes collected. However, in the rural area, Ae. vexans nipponii had the highest population (61.90%), followed by Och. dorsalis (17.10%), Cx. tritaeniorhynchus (1.84%) and Och, koreicus (1.78%). Culicine mosquitoes were identified at the species level, placed in pools of up to 30 mosquitoes each, and screened for flavivirus RNA using the SYBR Green-based RT-PCR. Three of the assayed 1092 pools were positive for Chaoyang virus from Ae. vexans nipponii and Japanese encephalitis virus from Cx. pipiens. The maximum likelihood estimations (the estimated number of virus-positive mosquitoes/1000 mosquitoes) for Ae. vexans nipponii positive for Chaoyang virus and Cx. pipiens for Japanese encephalitis virus were 3.095 and 0.20, respectively. The results of our study demonstrate that although mosquito-borne diseases were not detected in the potential vectors, enhanced monitoring and long-term surveillance of these vector viruses are of great public health importance.</abstract><cop>Netherlands</cop><pub>Elsevier B.V</pub><pmid>31733189</pmid><doi>10.1016/j.actatropica.2019.105258</doi><tpages>1</tpages><oa>free_for_read</oa></addata></record> |
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| source | Elsevier ScienceDirect Journals |
| subjects | Climate change Flavivirus Long-term surveillance Mosquito Tsutsugamushi Urban infection Vector-borne diseases |
| title | Three-year surveillance of culicine mosquitoes (Diptera: Culicidae) for flavivirus infections in Incheon Metropolitan City and Hwaseong-si of Gyeonggi-do Province, Republic of Korea |
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