Genetics and the origin of a vector population: Aedes aegypti, a case study

Science ◽  
1980 ◽  
Vol 208 (4450) ◽  
pp. 1385-1387 ◽  
Author(s):  
Powell ◽  
W. Tabachnick ◽  
J Arnold
Keyword(s):  
Aedes Aegypti ◽  
Vector Population

scholarly journals Exploring the molecular basis of insecticide resistance in the dengue vector Aedes aegypti: a case study in Martinique Island (French West Indies)

BMC Genomics ◽  
2009 ◽  
Vol 10 (1) ◽  
pp. 494 ◽  
Author(s):  
Sébastien Marcombe ◽  
Rodolphe Poupardin ◽  
Frederic Darriet ◽  
Stéphane Reynaud ◽  
Julien Bonnet ◽  
...  
Keyword(s):  
Aedes Aegypti ◽  
Insecticide Resistance ◽  
West Indies ◽  
Molecular Basis ◽  
Dengue Vector ◽  
French West Indies

scholarly journals The Effectiveness of Citrus Hystrix As Rapelant against Aedes Aegypti

2019 ◽  
Author(s):  
Anita Rosanty ◽  
Reni Yunus ◽  
Dian Yuniar SR
Keyword(s):  
Experimental Study ◽  
Aedes Aegypti ◽  
Dengue Virus ◽  
Leaf Extract ◽  
Hemorrhagic Fever ◽  
Life Cycles ◽  
Case Study Design ◽  
Aedes Mosquitoes ◽  
Vector Mosquito

Indonesia is the country with the highest cases of dengue fever in Southeast Asia. The WHO estimates a 50–100 million dengue infections worldwide every year. Dengue Hemorrhagic Fever (DHF) is transmitted through the bite of female Aedes mosquitoes infected with the Dengue virus. Mosquitoes Aedes aegypti is the main vector of the dengue virus. At the time, there is no cure for dengue so that the control efforts are focused on breaking the chain of life cycles. One effort to prevent the transmission of the dengue virus is to avoid vector mosquito bites. Repellent can reduce exposure to the bite of mosquitoes infected with the dengue virus. The aim of this study was to determine the effectiveness of the extract of citrus hystrix leaf as a repellent against the Aedes aegypti mosquitoes. This research is a laboratory experimental study with a one-shot case study design. In this study, the extract of citrus hystrix solution was made at a concentration of 10%, 20%, and 30%, and then the extract solution was used as a stock to make a 100-gram base lotion that would be used as a repellent. Repellent effectiveness is seen from the percentage of repellent protection power. The percentage of repellant protection used with the basic ingredients of Citrus hystrix leaf extract at concentrations of 10%, 20%, and 30%, respectively, at 93.33% 94.67%, and 97.33%. The extract of citrus hystrix leaf was found to be effective as a repellent against Aedes aegypti mosquitoes.

DETECTION OF DENGUE TRANSOVARIAL VIRUS FOR AIDES AEGYPTI MOSQUITOES IN ENDEMIC AREAS OF DENGUE HEMORRHAGIC FEVER

2019 ◽  
Vol 3 (9) ◽  
Author(s):  
Suparmin . ◽  
Arif Widyanto ◽  
Ismi Rajiani
Keyword(s):  
Aedes Aegypti ◽  
Dengue Virus ◽  
Dengue Hemorrhagic Fever ◽  
Hemorrhagic Fever ◽  
Positive Sample ◽  
Elisa Method ◽  
Central Java ◽  
Vector Population ◽  
The Government ◽  
Central Java Province

Background: The incidence rate (IR) of Dengue Hemorrhagic Fever per 100,000 population in Central Java has increased dramatically in five years. Banyumas Regency is an endemic area of ​​dengue hemorrhagic fever in Central Java Province. The cause of dengue hemorrhagic fever is four dengue viruses known as DEN-1, DEN-2, DEN-3, and DEN-4. The purpose of this research is to detect transovarial dengue virus in Aedes aegypti mosquito in Banyumas Regency. Methods: The study was conducted by installing ovitrap in Mersi Village, East Purwokerto District, and in Pliken Village, Kembaran District, Banyumas Regency. The study was conducted by installing ovitrap in Mersi Village (9 samples) and Pliken Village (3 samples). The eggs obtained are hatched into larvae in the laboratory. The 3rd and 4th instar larvae were examined for the presence of dengue virus using the Elisa method. Result: The results showed that in Mersi Village, there were two positive samples, and in Pliken Village, there was one positive sample containing dengue virus. The presence of the dengue virus found in the hatched Aedes aegypti larvae (F1) indicates that there has been a transovarial dengue virus from the parent mosquito in its offspring. Conclusion: The study concluded that in Banyumas District, a dengue virus transovarial had occurred in Aedes aegypti mosquitoes. The government and the community should increase efforts to eradicate mosquito nests (dengue hemorrhagic fever) to reduce the vector population of dengue hemorrhagic fever so that cases of dengue hemorrhagic fever can be eliminated.    Keyword: Transovarial dengue virus, Aedes aegypti, Dengue Hemorrhagic Fever

scholarly journals Are vectors able to learn about their hosts? A case study with Aedes aegypti mosquitoes

2003 ◽  
Vol 98 (5) ◽  
pp. 665-672 ◽  
Author(s):  
Wladimir J Alonso ◽  
Tristram D Wyatt ◽  
David W Kelly
Keyword(s):  
Aedes Aegypti

Assessing the effects of temperature on the population of Aedes aegypti, the vector of dengue

2009 ◽  
Vol 137 (8) ◽  
pp. 1188-1202 ◽  
Author(s):  
H. M. YANG ◽  
M. L. G. MACORIS ◽  
K. C. GALVANI ◽  
M. T. M. ANDRIGHETTI ◽  
D. M. V. WANDERLEY
Keyword(s):  
Life Cycle ◽  
Aedes Aegypti ◽  
Controlled Experiments ◽  
Dengue Disease ◽  
Offspring Number ◽  
Vector Population ◽  
Different Temperatures ◽  
Vector Borne ◽  
Temperature Controlled ◽  
Effects Of Temperature

SUMMARYDengue is a vector-borne disease transmitted by the mosquito Aedes aegypti. The incidence of dengue disease shows a clear dependence on seasonal variation. How does the temperature affect the incidence? We addressed this question indirectly by estimating the size of the A. aegypti population for different temperatures applying population dynamics theory. In order to achieve this objective we designed temperature-controlled experiments to assess the entomological parameters regarding the mosquito's life-cycle at different temperatures. By obtaining the mortality, transition and oviposition rates for different stages of the life-cycle of the mosquito we were able to calculate the basic offspring number Q0, which is the capacity of vector reproduction and ultimately gives the size of the vector population.

Cultural Factors in Aedes Aegypti and Dengue Control in Latin America: A Case Study from the Dominican Republic

1989 ◽  
Vol 10 (3) ◽  
pp. 193-211 ◽  
Author(s):  
Andrew J. Gordon ◽  
Zoila Rojas ◽  
Mae Tidwell
Keyword(s):  
Latin America ◽  
Dominican Republic ◽  
Aedes Aegypti ◽  
Health Risks ◽  
Explanatory Models ◽  
Environmental Risks ◽  
Curative Care ◽  
Dengue Control ◽  
Cultural Constraints

Dengue and Aedes aegypti infestation in Latin America pose substantial health risks. Total reliance on chemical interventions is no longer feasible and, increasingly, programs of control will need to rely on education, behavior change and community participation. Findings from applied behavioral research in the Dominican Republic conducted from July through September of 1987 are discussed in the light of cultural constraints on intervention efforts. Perception of risk, the choices for curative care as opposed to prevention, and explanatory models of environmental risks are considered. The article concludes with a discussion of the benefits of health education messages that possess simplicity and economy of effort. Additionally, the potential importance of biological controls are suggested in light of cultural constraints.

Visualizing Aedes aegypti infestation in urban areas: A case study on open government data mashups

2015 ◽  
Vol 20 (2,3) ◽  
pp. 119-134 ◽  
Author(s):  
Patricia Graziely Antunes de Mendonça ◽  
Cristiano Maciel ◽  
José Viterbo
Keyword(s):  
Aedes Aegypti ◽  
Urban Areas ◽  
Open Government ◽  
Open Government Data ◽  
Government Data ◽  
Data Mashups

scholarly journals Evaluation of Eosin-Methylene Blue as a Photosensitizer for Larval Control of Aedes aegypti by a Photodynamic Process

Insects ◽  
2018 ◽  
Vol 9 (3) ◽  
pp. 109 ◽  
Author(s):  
Alessandra Lima ◽  
Cicera Silva ◽  
Cynthia Caires ◽  
Esmael Prado ◽  
Luciana Rocha ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Aedes Aegypti ◽  
White Light ◽  
Larval Mortality ◽  
Effective Control ◽  
Insect Vector ◽  
Sunlight Irradiation ◽  
New Methods ◽  
Vector Population ◽  
Photodynamic Control

Aedes aegypti (Ae. aegypti) is a competent vector for transmitting important viral diseases such as yellow fever, dengue, chikungunya, and Zika. Several strategies have been applied to avoid Ae. aegypti proliferation by using environmental management, biological, and chemical approaches. However, the development of new methods for effective control of the insect vector population is still needed. Photodynamic control is an alternative way to control the vector population by using a physical approach based on the larval phototoxicity of a photosensitizer. In this context, the present study evaluated the use of eosin-methylene blue (EMB) as a new photosensitizer for photodynamic control of Ae. aegypti larval populations. The photodynamic assays were performed submitting Ae. aegypti third-instar larvae to different EMB concentrations (0.0, 0.5, 1.0, 5.0, 10.0, 50.0, and 100.0 µg mL−1) in combination of three different light doses (24.3, 48.6, and 97.2 J cm−2) under either white-light radiation from RGB LEDs or sunlight. The results demonstrated that EMB presented a rapid internalization into the larvae and was phototoxic. The photodynamic action induced 100% of larval mortality after about 40 min of sunlight irradiation even using low EMB concentration (0.5 µg mL−1). The findings reveal EMB as an effective photoactive compound to control larval populations of Ae. aegypti by photodynamic process induced by either sunlight or white-light from RGB LEDs.

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