Dogs as sentinels for flavivirus exposure in urban, peri-urban and rural Hanoi, Vietnam

Diseases caused by flaviviruses, including dengue fever and Japanese encephalitis, are major health problems in Vietnam. This cross-sectional study explored the feasibility of domestic dogs as sentinels to better understand risks of mosquito-borne diseases in Hanoi city. A total of 475 dogs serum sa...

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Autores principales: Long Pham-Thanh, Thang Nguyen-Tien, Magnusson, Ulf, Vuong Bui Nghia, Anh Bui-Ngoc, Duy Le-Thanh, Lundkvist, Å., Minh Can-Xuan, Thuy Nguyen-Thi Thu, Hau Vu-Thi Bich, Hu Suk Lee, Hung Nguyen-Viet, Lindahl, Johanna F.
Formato: Journal Article
Lenguaje:Inglés
Publicado: MDPI 2021
Materias:
Acceso en línea:https://hdl.handle.net/10568/113066
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author Long Pham-Thanh
Thang Nguyen-Tien
Magnusson, Ulf
Vuong Bui Nghia
Anh Bui-Ngoc
Duy Le-Thanh
Lundkvist, Å.
Minh Can-Xuan
Thuy Nguyen-Thi Thu
Hau Vu-Thi Bich
Hu Suk Lee
Hung Nguyen-Viet
Lindahl, Johanna F.
author_browse Anh Bui-Ngoc
Duy Le-Thanh
Hau Vu-Thi Bich
Hu Suk Lee
Hung Nguyen-Viet
Lindahl, Johanna F.
Long Pham-Thanh
Lundkvist, Å.
Magnusson, Ulf
Minh Can-Xuan
Thang Nguyen-Tien
Thuy Nguyen-Thi Thu
Vuong Bui Nghia
author_facet Long Pham-Thanh
Thang Nguyen-Tien
Magnusson, Ulf
Vuong Bui Nghia
Anh Bui-Ngoc
Duy Le-Thanh
Lundkvist, Å.
Minh Can-Xuan
Thuy Nguyen-Thi Thu
Hau Vu-Thi Bich
Hu Suk Lee
Hung Nguyen-Viet
Lindahl, Johanna F.
author_sort Long Pham-Thanh
collection Repository of Agricultural Research Outputs (CGSpace)
description Diseases caused by flaviviruses, including dengue fever and Japanese encephalitis, are major health problems in Vietnam. This cross-sectional study explored the feasibility of domestic dogs as sentinels to better understand risks of mosquito-borne diseases in Hanoi city. A total of 475 dogs serum samples from 221 households in six districts of Hanoi were analyzed by a competitive enzyme-linked immunosorbent assay (cELISA) for antibodies to the pr-E protein of West Nile virus and other flaviviruses due to cross-reactivity. The overall flavivirus seroprevalence in the dog population was 70.7% (95% CI = 66.4–74.8%). At the animal level, significant associations between seropositive dogs and district location, age, breed and keeping practice were determined. At the household level, the major risk factors were rural and peri-urban locations, presence of pigs, coil burning and households without mosquito-borne disease experience (p < 0.05). Mosquito control by using larvicides or electric traps could lower seropositivity, but other measures did not contribute to significant risk mitigation of flavivirus exposure in dogs. These results will support better control of mosquito-borne diseases in Hanoi, and they indicate that dogs can be used as sentinels for flavivirus exposure.
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spelling CGSpace1130662025-08-15T13:22:06Z Dogs as sentinels for flavivirus exposure in urban, peri-urban and rural Hanoi, Vietnam Long Pham-Thanh Thang Nguyen-Tien Magnusson, Ulf Vuong Bui Nghia Anh Bui-Ngoc Duy Le-Thanh Lundkvist, Å. Minh Can-Xuan Thuy Nguyen-Thi Thu Hau Vu-Thi Bich Hu Suk Lee Hung Nguyen-Viet Lindahl, Johanna F. dogs flavivirus disease control Diseases caused by flaviviruses, including dengue fever and Japanese encephalitis, are major health problems in Vietnam. This cross-sectional study explored the feasibility of domestic dogs as sentinels to better understand risks of mosquito-borne diseases in Hanoi city. A total of 475 dogs serum samples from 221 households in six districts of Hanoi were analyzed by a competitive enzyme-linked immunosorbent assay (cELISA) for antibodies to the pr-E protein of West Nile virus and other flaviviruses due to cross-reactivity. The overall flavivirus seroprevalence in the dog population was 70.7% (95% CI = 66.4–74.8%). At the animal level, significant associations between seropositive dogs and district location, age, breed and keeping practice were determined. At the household level, the major risk factors were rural and peri-urban locations, presence of pigs, coil burning and households without mosquito-borne disease experience (p < 0.05). Mosquito control by using larvicides or electric traps could lower seropositivity, but other measures did not contribute to significant risk mitigation of flavivirus exposure in dogs. These results will support better control of mosquito-borne diseases in Hanoi, and they indicate that dogs can be used as sentinels for flavivirus exposure. 2021-03-19 2021-03-22T14:24:19Z 2021-03-22T14:24:19Z Journal Article https://hdl.handle.net/10568/113066 en Open Access MDPI Long Pham-Thanh, Thang Nguyen-Tien, Magnusson, U., Vuong Bui-Nghia, Anh Bui-Ngoc, Duy Le-Thanh, Lundkvist, Å., Minh Can-Xuan, Thuy Nguyen-Thi Thu, Hau Vu-Thi Bich, Hu Suk Lee, Hung Nguyen-Viet and Lindahl, J. 2021. Dogs as sentinels for flavivirus exposure in urban, peri-urban and rural Hanoi, Vietnam. Viruses 13(3): 507.
spellingShingle dogs
flavivirus
disease control
Long Pham-Thanh
Thang Nguyen-Tien
Magnusson, Ulf
Vuong Bui Nghia
Anh Bui-Ngoc
Duy Le-Thanh
Lundkvist, Å.
Minh Can-Xuan
Thuy Nguyen-Thi Thu
Hau Vu-Thi Bich
Hu Suk Lee
Hung Nguyen-Viet
Lindahl, Johanna F.
Dogs as sentinels for flavivirus exposure in urban, peri-urban and rural Hanoi, Vietnam
title Dogs as sentinels for flavivirus exposure in urban, peri-urban and rural Hanoi, Vietnam
title_full Dogs as sentinels for flavivirus exposure in urban, peri-urban and rural Hanoi, Vietnam
title_fullStr Dogs as sentinels for flavivirus exposure in urban, peri-urban and rural Hanoi, Vietnam
title_full_unstemmed Dogs as sentinels for flavivirus exposure in urban, peri-urban and rural Hanoi, Vietnam
title_short Dogs as sentinels for flavivirus exposure in urban, peri-urban and rural Hanoi, Vietnam
title_sort dogs as sentinels for flavivirus exposure in urban peri urban and rural hanoi vietnam
topic dogs
flavivirus
disease control
url https://hdl.handle.net/10568/113066
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