{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,27]],"date-time":"2026-09-27T17:34:36Z","timestamp":1790530476532,"version":"4.1.0"},"reference-count":56,"publisher":"American Society of Tropical Medicine and Hygiene","issue":"6","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2012,12,5]]},"abstract":"<jats:p>Japanese encephalitis virus (JEV) is transmitted to humans from pigs or birds by mosquitoes. In this study, the association between urban pig keeping and mosquito vectors was analyzed. A total of 7, 419 mosquitoes were collected overnight in urban households with and without pigs in Can Tho City, Vietnam. The most prevalent vectors were <jats:italic>Culex tritaeniorhynchus<\/jats:italic> (36%), <jats:italic>Cx. gelidus<\/jats:italic> (24%), and <jats:italic>Cx. quinquefasciatus<\/jats:italic> (15%), which were present in all parts of the city. Pigs were associated with increased numbers of <jats:italic>Cx. tritaeniorhynchus<\/jats:italic>. Traps close to pigs had higher numbers of <jats:italic>Cx. tritaeniorhynchus<\/jats:italic> and <jats:italic>Cx. gelidus<\/jats:italic> than traps close to humans. Increased number of persons in the household was associated with increased numbers of <jats:italic>Cx. quinquefasciatus<\/jats:italic>. We demonstrate that JEV vector species are present at urban households with and without pigs, and show that keeping pigs in an urban area increase the number of mosquitoes competent as vectors for JEV.<\/jats:p>","DOI":"10.4269\/ajtmh.2012.12-0315","type":"journal-article","created":{"date-parts":[[2012,10,2]],"date-time":"2012-10-02T06:49:40Z","timestamp":1349160580000},"page":"1076-1082","source":"Crossref","is-referenced-by-count":70,"title":["Occurrence of Japanese Encephalitis Virus Mosquito Vectors in Relation to Urban Pig Holdings"],"prefix":"10.4269","volume":"87","author":[{"given":"Johanna","family":"Lindahl","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jan","family":"Chirico","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sofia","family":"Boqvist","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ho Thi Viet","family":"Thu","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ulf","family":"Magnusson","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"2795","reference":[{"key":"R1","series-title":"Am J Trop Med Hyg","first-page":"678","article-title":"Ecologic studies of Japanese encephalitis virus in Japan. 4. Avian infection","volume":"8","author":"Buescher","year":"1959"},{"key":"R2","series-title":"Annu Rev Microbiol","first-page":"395","article-title":"The natural history of Japanese encephalitis virus","volume":"40","author":"Rosen","year":"1986"},{"key":"R3","series-title":"Epidemiol Infect","first-page":"980","article-title":"The impact of climate on Japanese encephalitis","volume":"136","author":"Hsu","year":"2008"},{"key":"R4","series-title":"Virus Infections of Porcines","first-page":"131","article-title":"Japanese encephalitis virus","author":"Joo","year":"1989"},{"key":"R5","series-title":"Virus Infections in Equines","first-page":"141","article-title":"Japanese, western, eastern and Venezuelan encephalitides","author":"Calisher","year":"1996"},{"key":"R6","series-title":"J Neurol Neurosurg Psychiatry","first-page":"405","article-title":"Japanese encephalitis","volume":"68","author":"Solomon","year":"2000"},{"key":"R7","series-title":"Curr Top Microbiol Immunol","doi-asserted-by":"crossref","first-page":"11","DOI":"10.1007\/978-3-642-59403-8_2","article-title":"Japanese encephalitis virus: ecology and epidemiology","volume":"267","author":"Endy","year":"2002"},{"key":"R8","series-title":"Perspectives in Medical Virology","doi-asserted-by":"crossref","first-page":"201","DOI":"10.1016\/S0168-7069(06)16010-3","article-title":"Japanese encephalitis virus: the geographic distribution, incidence, and spread of a virus with a propensity to emerge in new areas","author":"Mackenzie","year":"2006"},{"key":"R9","series-title":"Jpn J Trop Med Hyg","first-page":"55","article-title":"Current situation of Japanese encephalitis and production of preventive vaccine in Vietnam","volume":"20","author":"Igarashi","year":"1992"},{"key":"R10","series-title":"Factors in the Emergence of Arbovirus Diseases","first-page":"179","article-title":"Factors in the changing epidemiology of Japanese encephalitis and West Nile fever","author":"Tsai","year":"1997"},{"key":"R11","series-title":"Trop Med","first-page":"202","article-title":"Current situation of Japanese encephalitis in the south of Vietnam, 1976\u20131992","volume":"36","author":"Do","year":"1994"},{"key":"R12","series-title":"Epidemiol Infect","first-page":"213","article-title":"Assessment of the factors associated with flavivirus seroprevalence in a population in southern Vietnam","volume":"128","author":"Bartley","year":"2002"},{"key":"R13","series-title":"Am J Trop Med Hyg","first-page":"816","article-title":"Surveillance for Japanese encephalitis in Vietnam, 1998\u20132007","volume":"83","author":"Yen","year":"2010"},{"key":"R14","series-title":"Emerg Infect Dis","first-page":"1","article-title":"Past, present, and future of Japanese encephalitis","volume":"15","author":"Erlanger","year":"2009"},{"key":"R15","series-title":"Pig News and Information","first-page":"91","article-title":"Outlines of pig production in Vietnam","volume":"18","author":"Hai","year":"1997"},{"key":"R16","series-title":"Global Agenda for Livestock Research","article-title":"Research priorities for improving animal production by agro-ecological zone in Vietnam","author":"Vo-Tong","year":"1995"},{"key":"R17","series-title":"Southeast Asian J Trop Med Public Health","first-page":"47","article-title":"Japanese encephalitis in Vietnam 1985\u20131993","volume":"26","author":"Nguyen","year":"1995"},{"key":"R18","series-title":"Trop Anim Health Prod","first-page":"239","article-title":"Reproductive performance in sows in relation to Japanese encephalitis virus seropositivity in an endemic area","volume":"44","author":"Lindahl","year":"2012"},{"key":"R19","series-title":"Flaviviruses: Pathogenesis and Immunity","first-page":"187","article-title":"Dynamics of flavivirus infection in mosquitoes","author":"Kramer","year":"2003"},{"key":"R20","series-title":"Curr Top Microbiol Immunol","doi-asserted-by":"crossref","first-page":"85","DOI":"10.1007\/978-3-540-70962-6_5","article-title":"Overviews of pathogen emergence: which pathogens emerge, when and why?","volume":"315","author":"Cleaveland","year":"2007"},{"key":"R21","series-title":"Nat Med","first-page":"98","article-title":"Emerging flaviviruses: the spread and resurgence of Japanese encephalitis, West Nile and dengue viruses","volume":"10","author":"Mackenzie","year":"2004"},{"key":"R22","series-title":"Agric Econ","first-page":"291","article-title":"The effects of expenditure growth and urbanisation on food consumption in east Asia: a note on animal products","volume":"18","author":"Rae","year":"1998"},{"key":"R23","series-title":"Growing Cities, Growing Food: Urban Agriculture on the Policy Agenda","first-page":"67","article-title":"The impact of urban agriculture on the household and local economies","author":"Nugent","year":"2000"},{"key":"R24","series-title":"Growing Cities, Growing Food: Urban Agriculture on the Policy Aagenda. A Reader on Urban Agriculture","first-page":"99","article-title":"Urban agriculture and food security, nutrition and health","author":"Armar-Klemesu","year":"2000"},{"key":"R25","series-title":"J Arid Environ","first-page":"475","article-title":"Socio-economic determinants of urban household livestock keeping in semi-arid western Africa","volume":"63","author":"Thys","year":"2005"},{"key":"R26","series-title":"Am J Infect Control","first-page":"435","article-title":"Seroepidemiology study of Japanese encephalitis neutralizing antibodies in southern Taiwan: a comparative study between urban city and country townships","volume":"31","author":"Tseng","year":"2003"},{"key":"R27","series-title":"J Infect","first-page":"551","article-title":"Weather variables and Japanese encephalitis in the metropolitan area of Jinan city, China","volume":"55","author":"Bi","year":"2007"},{"key":"R28","series-title":"Trop Med Int Health","first-page":"1134","article-title":"Spatial distribution and risk factors of dengue and Japanese encephalitis virus infection in urban settings: the case of Vientiane, Lao PDR","volume":"14","author":"Vall\u00e9e","year":"2009"},{"key":"R29","series-title":"Statistical Yearbook of Ninh Kieu Urban District in 2008","author":"Anh","year":"2009"},{"key":"R30","series-title":"Mosq Systematics","first-page":"75","article-title":"Illustrated keys to species of Culex (Culex) associated with Japanese encephalitis in southeast Asia (Diptera: Culicidae)","volume":"26","author":"Reuben","year":"1994"},{"key":"R31","series-title":"J Commun Dis","first-page":"133","article-title":"Host feeding patterns of Culex vishnui sub group of mosquitoes in Dibrugarh district of Assam","volume":"26","author":"Bhattacharyya","year":"1994"},{"key":"R32","series-title":"Med Entomol Zool","first-page":"323","article-title":"Host preference of Japanese encephalitis vectors in Chiangmai, northern Thailand","volume":"50","author":"Mwandawiro","year":"1999"},{"key":"R33","series-title":"Am J Trop Med Hyg","first-page":"676","article-title":"The 2002 introduction of West Nile virus into Harris County, Texas, an area historically endemic for St. Louis encephalitis","volume":"70","author":"Lillibridge","year":"2004"},{"key":"R34","series-title":"Trop Med","first-page":"37","article-title":"Dispersal experiment of Culex tritaeniorhynchus in Nagasaki area (preliminary report)","volume":"11","author":"Wada","year":"1969"},{"key":"R35","series-title":"J Med Entomol","first-page":"797","article-title":"Mosquito (Diptera: Culicidae) dispersal: implications for the epidemiology of Japanese and Murray Valley encephalitis viruses in Australia","volume":"37","author":"Kay","year":"2000"},{"key":"R36","series-title":"Annu Rev Entomol","first-page":"17","article-title":"Ecology and geographical expansion of Japanese encephalitis virus","volume":"54","author":"van den Hurk","year":"2009"},{"key":"R37","series-title":"Isolation of Japanese Encephalitis Virus from Mosquitoes collected in Can Tho City","author":"Thu","year":"2006"},{"key":"R38","series-title":"Rev Saude Publica","first-page":"165","article-title":"Agricultural development and arthropod-borne diseases: a review","volume":"25","author":"Service","year":"1991"},{"key":"R39","series-title":"Am J Trop Med Hyg","first-page":"198","article-title":"Short report: observations on the multiple feeding behavior of Culex tritaeniorhynchus (Diptera: culicidae), the vector of Japanese encephalitis in Kerala in southern India","volume":"72","author":"Arunachalam","year":"2005"},{"key":"R40","series-title":"J Med Entomol","first-page":"436","article-title":"Japanese encephalitis virus in Bangkok: factors influencing vector infections in three suburban communities","volume":"29","author":"Gingrich","year":"1992"},{"key":"R41","series-title":"Southeast Asian J Trop Med Public Health","first-page":"558","article-title":"A longitudinal study of Japanese encephalitis in suburban Bangkok, Thailand","volume":"18","author":"Gingrich","year":"1987"},{"key":"R42","series-title":"Commun Dis Intell","first-page":"74","article-title":"Detection of the exotic mosquito Culex gelidus in the Northern Territory","volume":"24","author":"Whelan","year":"2000"},{"key":"R43","series-title":"Southeast Asian J Trop Med Public Health","first-page":"875","article-title":"First isolation of Japanese encephalitis from Culex quinquefasciatus in Thailand","volume":"36","author":"Nitatpattana","year":"2005"},{"key":"R44","series-title":"J Insect Sci","first-page":"1","article-title":"Culex quinquefasciatus (Diptera: Culicidae) as a potential West Nile virus vector in Tucson, Arizona: blood meal analysis indicates feeding on both humans and birds","volume":"4","author":"Zinser","year":"2004"},{"key":"R45","series-title":"Am J Trop Med Hyg","first-page":"159","article-title":"Influence of the distribution of host species on adult abundance of Japanese encephalitis vectors Culex vishnui subgroup and Culex gelidus in a rice-cultivating village in Northern Vietnam","volume":"78","author":"Hasegawa","year":"2008"},{"key":"R46","series-title":"J Urban Health","first-page":"367","article-title":"West Nile virus and the climate","volume":"78","author":"Epstein","year":"2001"},{"key":"R47","series-title":"Korean J Parasitol","first-page":"67","article-title":"Epidemio-entomological survey of Japanese encephalitis in Korea","volume":"29","author":"Baik","year":"1991"},{"key":"R48","series-title":"Southeast Asian J Trop Med Public Health","first-page":"61","article-title":"The effects of climatic patterns and agricultural practices on the population dynamics of Culex tritaeniorhynchus in Asia","volume":"7","author":"Reisen","year":"1976"},{"key":"R49","series-title":"Acta Trop","first-page":"40","article-title":"Effect of irrigated rice agriculture on Japanese encephalitis, including challenges and opportunities for integrated vector management","volume":"95","author":"Keiser","year":"2005"},{"key":"R50","series-title":"AGROPOLIS: the Social, Political and Environmental Dimensions of Urban Agriculture","author":"Mougeot","year":"2005"},{"key":"R51","series-title":"Phil Trans R Soc B Biol Sci","first-page":"2809","article-title":"Urbanization and its implications for food and farming","volume":"365","author":"Satterthwaite","year":"2010"},{"key":"R52","series-title":"Profitability and Sustainability of Urban and Peri-urban Agriculture","author":"van Veenhuizen","year":"2007"},{"key":"R53","series-title":"Clin Microbiol Rev","first-page":"608","article-title":"Biological transmission of arboviruses: reexamination of and new insights into components, mechanisms, and unique traits as well as their evolutionary trends","volume":"18","author":"Kuno","year":"2005"},{"key":"R54","series-title":"Trans R Soc Trop Med H","first-page":"595","article-title":"Japanese encephalitis on Badu Island, Australia: the first isolation of Japanese encephalitis virus from Culex gelidus in the Australasian region and the role of mosquito host-feeding patterns in virus transmission cycles","volume":"95","author":"Van Den Hurk","year":"2001"},{"key":"R55","series-title":"Euro Surveill","article-title":"Japanese encephalitis virus RNA detected in Culex pipiens mosquitoes in Italy","volume":"17","author":"Ravanini","year":"2012"},{"key":"R56","series-title":"Clin Infect Dis","first-page":"183","article-title":"Japanese encephalitis vaccine for travelers: exploring the limits of risk","volume":"35","author":"Shlim","year":"2002"}],"container-title":["The American Society of Tropical Medicine and 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