Mosquitoes and Mosquito-Borne Diseases in Vietnam

Huynh, Ly Na; Tran, Long Bien; Nguyen, Hong Sang; Ho, Van Hoang; Parola, Philippe; Nguyen, Xuan Quang

doi:10.3390/insects13121076

Cited by 6 publications

(5 citation statements)

References 132 publications

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“…This is consistent with another study conducted in September and October 2018 in the same area around Hanoi, which also found that there were fewer mosquitoes in urban areas than in peri-urban areas 21 . This could be due to higher awareness in urbanized settings, leading to better implementation of mosquito control, or less availability of breeding sites and blood-meal hosts 3 . Additionally, we found that the average monthly temperatures in the urban area were higher and the average monthly humidity was lower when compared to both the suburban and peri-urban areas.…”

Section: Discussionmentioning

confidence: 99%

“…Vector-borne viruses collectively account for close to 700,000 deaths each year and are rapidly emerging as prominent threats to local populations 1 , 2 . Factors that may change vector dynamics and can alter vector abundance, such as urbanization, changes in land-use, deforestation, and climate change contribute to the escalating prevalence of mosquito-borne illness worldwide 3 .Understandng the abundance and dynamics of mosquito vectors is crucial for assessing the risks of arboviral diseases and anticipating future outbreaks 4 – 6 , and to enable timely implementation of control measures to mitigate the risk of human infection 4 .…”

Section: Introductionmentioning

confidence: 99%

“…Mosquito-borne diseases are highly prevalent in South-East Asia, including Vietnam 3 , and Japanese Encephalitis virus (JEV), dengue virus (DENV), Zika virus (ZIKV), and chikungunya virus (CHIKV) are examples of viruses endemic in Vietnam 2 , 3 .JEV is a highly pathogenic mosquito-borne flavivirus, that causes encephalitis in humans and horses in tropical and temperate regions of Asia 7 , 8 . Pigs act as amplifying hosts and can be affected by the virus, mainly resulting in abortions and neonatal deaths 7 , 8 .…”

Section: Introductionmentioning

confidence: 99%

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Study on the temporal and spatial distribution of Culex mosquitoes in Hanoi, Vietnam

Krambrich,

Nguyen-Tien,

Pham-Thanh

et al. 2024

Sci Rep

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Arboviruses transmitted by mosquitoes, including Japanese encephalitis virus (JEV), present a substantial global health threat. JEV is transmitted by mosquitoes in the genus Culex, which are common in both urban and rural areas in Vietnam. In 2020, we conducted a 1-year survey of Culex mosquito abundance in urban, suburban, and peri-urban areas of Hanoi using CDC-light traps. Mosquitoes were identified to species and sorted into pools based on species, sex, and trap location. The mosquito pools were also investigated by RT-qPCR for detection of JEV. In total, 4829 mosquitoes were collected over a total of 455 trap-nights, across 13 months. Collected mosquitoes included Culex, Aedes, Anopheles, and Mansonia species. Culex mosquitoes, primarily Cx. quinquefasciatus, predominated, especially in peri-urban areas. Most Culex mosquitoes were caught in the early months of the year. The distribution and abundance of mosquitoes exhibited variations across urban, suburban, and peri-urban sites, emphasizing the influence of environmental factors such as degree of urbanization, temperature and humidity on Culex abundance. No JEV was detected in the mosquito pools. This study establishes baseline knowledge of Culex abundance and temporal variation, which is crucial for understanding the potential for JEV transmission in Hanoi.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Study on the temporal and spatial distribution of Culex mosquitoes in Hanoi, Vietnam

Krambrich,

Nguyen-Tien,

Pham-Thanh

et al. 2024

Sci Rep

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“…There are over three thousand species of mosquitoes known worldwide, a few of them capable of transmitting diseases to humans. The major MBDs are malaria, dengue (DENV), Zika (ZIKV), chikungunya (CHIKV), Japanese encephalitis, yellow fever (YFV), filariasis, West Nile Virus (WNV) and Rift Valley Fever (Huynh et al, 2022). Some of these diseases can cause severe clinical conditions and even death.…”

Section: Mosquito-borne Diseasesmentioning

confidence: 99%

Prevention and control of mosquito-borne diseases across Toronto and Brasília: A document-based descriptive analysis

Cruz

Şekercioğlu²,

Santos³

2023

Int Health Trends & Persp

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The present study analyzed documents by health departments in Toronto, Ontario, Canada and Brasília, Federal District, Brazil that address strategies for prevention and control of mosquito-borne diseases (MBDs) between 2012 and 2022. Nineteen documents were fully read and analyzed. Results suggest both Toronto and Brasília base their strategies on Integrated Vector Management, performing entomological, environmental, vector and epidemiological surveillance; source reduction; public education and mobilization; and chemical control as an ultimate resource. In addition, results indicate many documents lacked references lists with scientific evidence, although the most recent ones usually follow international protocols and national experiments results. Most do not teach workers on how to verify the effectiveness of the executed measures. Further research investigating people’s perceptions and behaviors towards MBDs can provide a more solid ground for effective health policy development, especially in cases of major public health concern, such as dengue and other neglected tropical diseases epidemics.

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“…minimus, Aedes spp, and An. Epiroticus mainly transmits these diseases in urban and adjoining regions in the Southeast of Ho Chi Minh City and Binh Duong Province [3].…”

Section: Introductionmentioning

confidence: 99%

Use of low-cost drones to map arbovirus vector habitats with multispectral aerial imagery

Hoang,

Linh,

Long

et al. 2024

Preprint

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Background This article introduces WaterMAI, a novel multispectral aerial imagery dataset that is optimized for detecting small to medium water bodies and is essential for mapping arbovirus vector habitats. While satellite datasets provide broad coverage and are valuable in many contexts, WaterMAI concentrates on utilizing high-resolution aerial imagery. This approach is suitable for capturing detailed information about water bodies, which may contain vectors for arboviruses. Materials and methods We benchmarked baseline deep learning algorithms on our WaterMAI dataset for water body detection, employing both bounding box and segmentation approaches, establishing new baselines for this domain. Furthermore, we extensively investigate the effectiveness of various spectral band combinations, including Near-infrared (NIR), Red, Green, Blue (RGB), and the Normalized Difference Water Index (NDWI), to determine the potential configuration for accurate water body detection. Results The WaterMAI dataset, covering 16 rural and sub-tropical regions with varied water bodies, increases the utility of research through multiple spectral bands, including visible and near-infrared. The findings demonstrate the potential of multispectral imagery that shall enhance the understanding and monitoring of water bodies in rural and subtropical regions. The WaterMAI dataset, orthomosaic images, and the implementation of the segmentation models for benchmarking are available in GitHub database. Conclusion Our result suggests incorporating NDWI and NIR spectral bands with RGB images potentially improves the water body detection algorithm.

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Mosquitoes and Mosquito-Borne Diseases in Vietnam

Cited by 6 publications

References 132 publications

Study on the temporal and spatial distribution of Culex mosquitoes in Hanoi, Vietnam

Study on the temporal and spatial distribution of Culex mosquitoes in Hanoi, Vietnam

Prevention and control of mosquito-borne diseases across Toronto and Brasília: A document-based descriptive analysis

Use of low-cost drones to map arbovirus vector habitats with multispectral aerial imagery

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