scholarly journals Dengue vector mosquitoes in Japan : The role of Aedes albopictus and Aedes aegypti in the 1942-1944 dengue epidemics of Japanese Main Islands

1998 ◽  
Vol 49 (4) ◽  
pp. 267-274 ◽  
Author(s):  
Susumu HOTTA
Keyword(s):  
Aedes Aegypti ◽  
Aedes Albopictus ◽  
Dengue Vector ◽  
Dengue Epidemics

scholarly journals The elimination of the dengue vector, Aedes aegypti, from Brisbane, Australia: The role of surveillance, larval habitat removal and policy

2017 ◽  
Vol 11 (8) ◽  
pp. e0005848 ◽  
Author(s):  
Brendan J. Trewin ◽  
Jonathan M. Darbro ◽  
Cassie C. Jansen ◽  
Nancy A. Schellhorn ◽  
Myron P. Zalucki ◽  
...  
Keyword(s):  
Aedes Aegypti ◽  
Larval Habitat ◽  
Dengue Vector

scholarly journals Plant nutrient quality impacts survival and reproductive fitness of the dengue vector Aedes aegypti

2020 ◽  
Author(s):  
Vincent Odhiambo Nyasembe ◽  
David Poumo Tchouassi ◽  
Martha Njeri Muturi ◽  
Christian W. W. Pirk ◽  
Catherine L. Sole ◽  
...  
Keyword(s):  
Amino Acid ◽  
Aedes Aegypti ◽  
Disease Transmission ◽  
Acid Content ◽  
Amino Acid Content ◽  
Reproductive Fitness ◽  
The Other ◽  
Gut Contents ◽  
Dengue Vector

Abstract Background: In a recent study using DNA barcoding, we identified the plants fed upon by four Afro-tropical mosquito species that vector dengue, malaria, and Rift Valley fever. Herein, we have expanded on this study by investigating the role of three of the plants Pithecellobium dulce (Fabaceae), Leonotis nepetifolia (Lamiaceae), and Opuntia ficus-indica (Cactaceae) on survival, fecundity, and egg viability of the dengue vector Aedes aegypti. Methods: We tested these effects using females that received a) an initial three rations of bloodmeal, and b) received no bloodmeal at all. Two controls were included; age-matched females fed on glucose solution with or without initial bloodmeal, and those fed exclusively on bloodmeal. Data was collected daily over a 30-day period. The amino acid content of Ae. aegypti guts and the amino acid content of their respective diets was detected by coupled liquid chromatography – mass spectrometry.Results: Females fed on P. dulce and exclusive bloodmeal had a shorter survival than those fed on glucose. On the other hand, females fed on L. nepetifolia survived longer than those fed exclusively on bloodmeal, whereas those fed on O. ficus-indica had the shortest survival time. With initial bloodmeal, females fed on L. nepetifolia laid 1.6-fold more eggs while those fed on the other diets laid fewer eggs, compared to those fed exclusively on bloodmeal. Hatching rates of the eggs laid varied with the diet. Mass spectroscopic analysis of gut contents of mosquitoes exposed to the different diets showed qualitative and quantitative differences in their amino acid levels. Conclusion: Our findings highlight the central role of plant nutrients in the reproductive fitness of dengue vectors which may impact their disease transmission potential.

scholarly journals Plant Nutrient Quality Promotes Survival and Reproductive Fitness of the Dengue Vector Aedes Aegypti

2020 ◽  
Author(s):  
Vincent Odhiambo Nyasembe ◽  
David P. Tchouassi ◽  
Martha N. Muturi ◽  
Christian W. W. Pirk ◽  
Catherine L. Sole ◽  
...  
Keyword(s):  
Amino Acid ◽  
Aedes Aegypti ◽  
Disease Transmission ◽  
Acid Content ◽  
Amino Acid Content ◽  
Reproductive Fitness ◽  
The Other ◽  
Gut Contents ◽  
Dengue Vector

Abstract Background: In a recent study using DNA barcoding, we identified the plants fed upon by four Afro-tropical mosquito species that vector dengue, malaria, and Rift Valley fever. Herein, we have expanded on this study by investigating the role of three of the plants Pithecellobium dulce (Fabaceae), Leonotis nepetifolia (Lamiaceae), and Opuntia ficus-indica (Cactaceae) on survival, fecundity, and egg viability of the dengue vector Aedes aegypti. Methods: We tested these effects using females that received a) an initial three rations of bloodmeal, and b) received no bloodmeal at all. Two controls were included; age-matched females fed on glucose solution with or without initial bloodmeal, and those fed exclusively on bloodmeal. Data was collected daily over a 30-day period. The amino acid content of Ae. aegypti guts and the amino acid content of their respective diets was detected by coupled liquid chromatography – mass spectrometry.Results: Females fed on P. dulce and exclusive bloodmeal had a shorter survival than those fed on glucose. On the other hand, females fed on L. nepetifolia survived longer than those fed exclusively on bloodmeal, whereas those fed on O. ficus-indica had the shortest survival time. With initial bloodmeal, females fed on L. nepetifolia laid 1.6-fold more eggs while those fed on the other diets laid fewer eggs, compared to those fed exclusively on bloodmeal. Hatching rates of the eggs laid varied with the diet. Mass spectroscopic analysis of gut contents of mosquitoes exposed to the different diets showed qualitative and quantitative differences in their amino acid levels. Conclusion: Our findings highlight the central role of plant nutrients in the reproductive fitness of dengue vectors which may impact their disease transmission potential.

scholarly journals Plant nutrient quality promotes survival and reproductive fitness of the dengue vector Aedes aegypti

2020 ◽  
Author(s):  
Vincent Odhiambo Nyasembe ◽  
David P. Tchouassi ◽  
Martha N. Muturi ◽  
Christian W. W. Pirk ◽  
Catherine L. Sole ◽  
...  
Keyword(s):  
Amino Acid ◽  
Aedes Aegypti ◽  
Disease Transmission ◽  
Acid Content ◽  
Amino Acid Content ◽  
Reproductive Fitness ◽  
The Other ◽  
Gut Contents ◽  
Dengue Vector

Abstract Background In a recent study using DNA barcoding, we identified the plants fed upon by four Afro-tropical mosquito species that vector dengue, malaria, and Rift Valley fever. Herein, we have expanded on this study by investigating the role of three of the plants Pithecellobium dulce (Fabaceae), Leonotis nepetifolia (Lamiaceae), and Opuntia ficus-indica (Cactaceae) on survival, fecundity, and egg viability of the dengue vector Aedes aegypti. Methods We tested these effects using females that received a) an initial three rations of bloodmeal, and b) received no bloodmeal at all. Two controls were included; age-matched females fed on glucose solution with or without initial bloodmeal, and those fed exclusively on bloodmeal. Data was collected daily over a 30-day period. The amino acid content of Ae. aegypti guts and the amino acid content of their respective diets was detected by coupled liquid chromatography – mass spectrometry. Results Females fed on P. dulce and exclusive bloodmeal had a shorter survival than those fed on glucose. On the other hand, females fed on L. nepetifolia survived longer than those fed exclusively on bloodmeal, whereas those fed on O. ficus-indica had the shortest survival time. With initial bloodmeal, females fed on L. nepetifolia laid 1.6-fold more eggs while those fed on the other diets laid fewer eggs, compared to those fed exclusively on bloodmeal. Hatching rates of the eggs laid varied with the diet. Mass spectroscopic analysis of gut contents of mosquitoes exposed to the different diets showed qualitative and quantitative differences in their amino acid levels. Conclusion Our findings highlight the central role of plant nutrients in the reproductive fitness of dengue vectors which may impact their disease transmission potential.

scholarly journals Insecticide resistance in dengue vectors from hotspots in Selangor, Malaysia

2021 ◽  
Vol 15 (3) ◽  
pp. e0009205
Author(s):  
Rosilawati Rasli ◽  
Yoon Ling Cheong ◽  
M. Khairuddin Che Ibrahim ◽  
Siti Futri Farahininajua Fikri ◽  
Rusydi Najmuddin Norzali ◽  
...  
Keyword(s):  
Aedes Aegypti ◽  
Insecticide Resistance ◽  
Vector Control ◽  
Aedes Albopictus ◽  
World Health ◽  
Dengue Vector ◽  
Organophosphate Insecticide ◽  
Potential Threat ◽  
Pyrethroid Insecticides ◽  
Dengue Vector Control

Background In Malaysia, dengue remains a top priority disease and usage of insecticides is the main method for dengue vector control. Limited baseline insecticide resistance data in dengue hotspots has prompted us to conduct this study. The present study reports the use of a map on the insecticide susceptibility status of Aedes aegypti and Aedes albopictus to provide a quick visualization and overview of the distribution of insecticide resistance. Method and results The insecticide resistance status of Aedes populations collected from 24 dengue hotspot areas from the period of December 2018 until June 2019 was proactively monitored using the World Health Organization standard protocol for adult and larval susceptibility testing was conducted, together with elucidation of the mechanisms involved in observed resistance. For resistance monitoring, susceptibility to three adulticides (permethrin, deltamethrin, and malathion) was tested, as well as susceptibility to the larvicide, temephos. Data showed significant resistance to both deltamethrin and permethrin (pyrethroid insecticides), and to malathion (organophosphate insecticide) in all sampled Aedes aegypti populations, while variable resistance patterns were found in the sampled Aedes albopictus populations. Temephos resistance was observed when larvae were tested using the diagnostic dosage of 0.012mg/L but not at the operational dosage of 1mg/L for both species. Conclusion The present study highlights evidence of a potential threat to the effectiveness of insecticides currently used in dengue vector control, and the urgent requirement for insecticide resistance management to be integrated into the National Dengue Control Program.

scholarly journals Role of Aedes aegypti and Aedes albopictus during the 2011 dengue fever epidemics in Hanoi, Vietnam

2015 ◽  
Vol 8 (7) ◽  
pp. 543-548 ◽  
Author(s):  
Pham Thi Kim Lien ◽  
Vu Trong Duoc ◽  
Laurent Gavotte ◽  
Emmanuel Cornillot ◽  
Phan Thi Nga ◽  
...  
Keyword(s):  
Aedes Aegypti ◽  
Dengue Fever ◽  
Aedes Albopictus

scholarly journals Increasing Role of Roof Gutters asAedes aegypti(Diptera: Culicidae) Breeding Sites in Guadeloupe (French West Indies) and Consequences on Dengue Transmission and Vector Control

2012 ◽  
Vol 2012 ◽  
pp. 1-3 ◽  
Author(s):  
Joël Gustave ◽  
Florence Fouque ◽  
Sylvie Cassadou ◽  
Lucie Leon ◽  
Gabriel Anicet ◽  
...  
Keyword(s):  
Aedes Aegypti ◽  
Vector Control ◽  
West Indies ◽  
French West Indies ◽  
Breeding Sites ◽  
The Past ◽  
Dengue Transmission ◽  
Intensive Control ◽  
Dengue Epidemics

During the past ten years, the islands of Guadeloupe (French West Indies) are facing dengue epidemics with increasing numbers of cases and fatal occurrences. The vectorAedes aegyptiis submitted to intensive control, with little effect on mosquito populations. The hypothesis that importantAe. aegyptibreeding sites are not controlled is investigated herein. For that purpose, the roof gutters of 123 houses were systematically investigated, and the percentage of gutters positive forAe. aegyptivaried from 17.2% to 37.5%, from humid to dry locations. In the dryer location, most of houses had no other breeding sites. The results show that roof gutters are becoming the most importantAe. aegyptibreeding sites in some locations in Guadeloupe, with consequences on dengue transmission and vector control.

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