Spatial distribution of Culex mosquito abundance and associated risk factors in Hanoi, Vietnam

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cg.authorship.typesCGIAR and developing country instituteen
cg.authorship.typesCGIAR and advanced research instituteen
cg.contributor.affiliationThai Nguyen University of Agriculture and Forestryen
cg.contributor.affiliationPusan National Universityen
cg.contributor.affiliationInternational Livestock Research Instituteen
cg.contributor.affiliationSwedish University of Agricultural Sciencesen
cg.contributor.affiliationUppsala Universityen
cg.contributor.crpAgriculture for Nutrition and Health
cg.contributor.donorUnited States Agency for International Developmenten
cg.contributor.donorSwedish Research Council for Environment, Agricultural Sciences and Spatial Planningen
cg.coverage.countryVietnam
cg.coverage.iso3166-alpha2VN
cg.coverage.regionAsia
cg.coverage.regionSouth-eastern Asia
cg.creator.identifierThang Nguyen-Tien: 0000-0003-3704-6363en
cg.creator.identifierJohanna Lindahl: 0000-0002-1175-0398en
cg.creator.identifierHung Nguyen-Viet: 0000-0003-1549-2733en
cg.creator.identifierHu Suk Lee: 0000-0002-8731-9836en
cg.howPublishedFormally Publisheden
cg.identifier.doihttps://doi.org/10.1371/journal.pntd.0009497en
cg.isijournalISI Journalen
cg.issn1935-2735en
cg.issue6en
cg.journalPLOS Neglected Tropical Diseasesen
cg.reviewStatusPeer Reviewen
cg.subject.ilriAGRI-HEALTHen
cg.subject.ilriENVIRONMENTen
cg.subject.ilriGEODATAen
cg.subject.ilriHUMAN HEALTHen
cg.subject.impactAreaEnvironmental health and biodiversity
cg.subject.sdgSDG 3 - Good health and well-beingen
cg.volume15en
dc.contributor.authorTuyen V. Haen
dc.contributor.authorKim, W.en
dc.contributor.authorThang Nguyen-Tienen
dc.contributor.authorLindahl, Johanna F.en
dc.contributor.authorHung Nguyen-Vieten
dc.contributor.authorNguyen Quang Thien
dc.contributor.authorHuy Van Nguyenen
dc.contributor.authorUnger, Freden
dc.contributor.authorHu Suk Leeen
dc.date.accessioned2021-06-22T14:29:31Zen
dc.date.available2021-06-22T14:29:31Zen
dc.identifier.urihttps://hdl.handle.net/10568/114073
dc.titleSpatial distribution of Culex mosquito abundance and associated risk factors in Hanoi, Vietnamen
dcterms.abstractJapanese encephalitis (JE) is the major cause of viral encephalitis (VE) in most Asian-Pacific countries. In Vietnam, there is no nationwide surveillance system for JE due to lack of medical facilities and diagnoses. Culex tritaeniorhynchus, Culex vishnui, and Culex quinquefasciatus have been identified as the major JE vectors in Vietnam. The main objective of this study was to forecast a risk map of Culex mosquitoes in Hanoi, which is one of the most densely populated cities in Vietnam. A total of 10,775 female adult Culex mosquitoes were collected from 513 trapping locations. We collected temperature and precipitation information during the study period and its preceding month. In addition, the other predictor variables (e.g., normalized difference vegetation index [NDVI], land use/land cover and human population density), were collected for our analysis. The final model selected for estimating the Culex mosquito abundance included centered rainfall, quadratic term rainfall, rice cover ratio, forest cover ratio, and human population density variables. The estimated spatial distribution of Culex mosquito abundance ranged from 0 to more than 200 mosquitoes per 900m2. Our model estimated that 87% of the Hanoi area had an abundance of mosquitoes from 0 to 50, whereas approximately 1.2% of the area showed more than 150 mosquitoes, which was mostly in the rural/peri-urban districts. Our findings provide better insight into understanding the spatial distribution of Culex mosquitoes and its associated environmental risk factors. Such information can assist local clinicians and public health policymakers to identify potential areas of risk for JE virus. Risk maps can be an efficient way of raising public awareness about the virus and further preventive measures need to be considered in order to prevent outbreaks and onwards transmission of JE virus.en
dcterms.accessRightsOpen Access
dcterms.audienceScientistsen
dcterms.audienceAcademicsen
dcterms.available2021-06-21en
dcterms.bibliographicCitationTuyen V. Ha, Kim, W., Thang Nguyen-Tien, Lindahl, J., Hung Nguyen-Viet, Nguyen Quang Thi, Huy Van Nguyen, Unger, F. and Hu Suk Lee. 2021. Spatial distribution of Culex mosquito abundance and associated risk factors in Hanoi, Vietnam. PLOS Neglected Tropical Diseases 15(6): e0009497.en
dcterms.extente0009497en
dcterms.issued2021-06-21en
dcterms.languageen
dcterms.licenseCC-BY-4.0
dcterms.publisherPublic Library of Scienceen
dcterms.subjectculexen
dcterms.subjectvectorsen
dcterms.subjectremote sensingen
dcterms.subjecthealthen
dcterms.subjectenvironmenten
dcterms.typeJournal Article

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