Insecticide susceptibility of Aedes aegypti and Aedes albopictus in Central Africa

Kamgang, Basile; Marcombe, Sébastien; Chandre, Fabrice; Nchoutpouen, Elysée; Nwane, Philippe; Etang, Josiane; Corbel, Vincent; Paupy, Christophe

doi:10.1186/1756-3305-4-79

Cited by 130 publications

(146 citation statements)

References 32 publications

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“…Wolbachia have been associated to alter their host reproductive phenotype such as male killing (Kamgang et al, 2011). This causes their host to kill the male progeny that inherited Wolbachia (Kamgang et al, 2013).…”

Section: Discussionmentioning

confidence: 99%

Distribution and dynamics of Wolbachia infection in Malaysian Aedes albopictus

et al. 2015

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Section: Discussionmentioning

confidence: 99%

Distribution and dynamics of Wolbachia infection in Malaysian Aedes albopictus

et al. 2015

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“…Moreover, treatments with Bacillus thuringiensis (var. israeliensis) can be a solution, but in several cases they are not suitable against A. albopictus larvae (Kamgang et al 2011). Concerning adults, the application of mosquito repellents on the skin is one of the oldest and commonest tools for personal protection, and in many circumstances, it is the only way to avoid mosquito bites (Fradin and Day 2002).…”

Section: Introductionmentioning

confidence: 99%

Repellent effect of Salvia dorisiana, S. longifolia, and S. sclarea (Lamiaceae) essential oils against the mosquito Aedes albopictus Skuse (Diptera: Culicidae)

et al. 2012

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Aedes albopictus (Diptera: Culicidae) has been one of the fastest spreading insects over the past 20 years. Its medical importance is due to the aggressive daytime human-biting behavior and the ability to vector many viruses, including dengue, LaCrosse, Eastern Equine encephalitis and West Nile viruses. In this research, the essential oils (EOs) extracted from fresh air dried leaves of Salvia dorisiana, S. longifolia, and S. sclarea (Lamiaceae) were evaluated for their repellent activity against A. albopictus by using the human-bait technique. The EOs chemical composition was also investigated, and EOs were divided in three different profiles on the basis of their chemical composition: EO with large amount of monoterpenes from S. sclarea, EO rich in oxygenated sesquiterpenes from S. dorisiana, and S. longifolia EO characterized by similar percentages of monoterpenes and sesquiterpenes. The efficacy protection from S. dorisiana, S. longifolia, and S. sclarea EOs, at dosages ranging from 0.004 to 0.4 μL cm(-2) of skin, was evaluated during 120 min of observation. Results indicated that S. dorisiana, S. longifolia, and S. sclarea EOs had a significant repellent activity (RD(50) =0.00035, 0.00049, and 0.00101 μL cm(-2), respectively), with differences in repellency rates, as a function of oil, dosage, and observation time. S. dorisiana was the most effective oil: at the two higher dosages, it gave almost complete protection (with a protective efficacy of 90.99% and 95.62%, respectively) for 90 min. The best protection time was achieved with S. dorisiana essential oil. It ranged from 9.2 to 92.4 min. Protection times of S. longifolia and S. sclarea oils ranged from 3.2 to 60 min, and from 3.6 to 64.2 min, respectively. Our findings clearly reveal that these EOs have a good repellent activity against A. albopictus, therefore they can be proposed to improve the efficacy of repellent formulations against the Asian tiger mosquito.

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“…It is generally transmitted to humans via Aedes aegypti and Aedes albopictus mosquitoes [Dutta et al, 2006;Kamgang et al, 2011].…”

Section: Journal Of Virology and Microbiologymentioning

confidence: 99%

Demographic and Clinical Features of Patients with Dengue in Northeastern Region of India: A Retrospective Cross-Sectional Study during 2009-2011

Dutta¹,

Khan²,

Borah³

et al. 2012

JVM

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The incidence of fever cases of unknown origin has increased in Northeastern Region of India in recent years. We conducted passive surveillance and performed laboratory testing on suspected cases for the presence of dengue infection during 2009-2011. We estimated the incidence by applying age, sex and season adjusted dengue positivity. We identified 430 suspected cases of which 143 (33.3%) were found to be laboratory-confirmed dengue cases. Dengue transmission was found to occur in post-monsoon season (September-December). We evaluated the differences of clinical features and hematologic abnormalities that occurred in laboratory dengue positive and negative cases. Significantly higher percentage of dengue patients had headache, eye pain and vomiting (P < 0.05). Diarrhoea as well as abdominal pain was observed more commonly in laboratory dengue negative patients but the difference was not significant (P > 0.05). Thrombocytopenia was observed in significantly higher percentage of positive patients (P < 0.001) with significantly lower platelets counts (P < 0.001). The elevated level of Aspartate transaminase (P < 0.001) and Alanine transaminase (P = 0.002) was also significantly higher side in positive patients. This study provides some important information in clinical and laboratory data that can be used for early diagnosis and subsequently for appropriate treatment of dengue infections. Thus, the passive surveillance and laboratory confirmation provides a better estimate of the actual dengue disease burden and a scope to further refine dengue prevention strategies.

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Insecticide susceptibility of Aedes aegypti and Aedes albopictus in Central Africa

Cited by 130 publications

References 32 publications

Distribution and dynamics of Wolbachia infection in Malaysian Aedes albopictus

Distribution and dynamics of Wolbachia infection in Malaysian Aedes albopictus

Repellent effect of Salvia dorisiana, S. longifolia, and S. sclarea (Lamiaceae) essential oils against the mosquito Aedes albopictus Skuse (Diptera: Culicidae)

Demographic and Clinical Features of Patients with Dengue in Northeastern Region of India: A Retrospective Cross-Sectional Study during 2009-2011

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