The dengue vector Aedes aegypti: What comes next

CSIRO Entomology, Long Pocket Laboratories, Indooroopilly, Queensland, Australia.
Microbes and Infection (Impact Factor: 2.86). 04/2010; 12(4):272-9. DOI: 10.1016/j.micinf.2009.12.011
Source: PubMed


Aedes aegypti is the urban vector of dengue viruses worldwide. While climate influences the geographical distribution of this mosquito species, other factors also determine the suitability of the physical environment. Importantly, the close association of A. aegypti with humans and the domestic environment allows this species to persist in regions that may otherwise be unsuitable based on climatic factors alone. We highlight the need to incorporate the impact of the urban environment in attempts to model the potential distribution of A. aegypti and we briefly discuss the potential for future technology to aid management and control of this widespread vector species.

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Available from: Cassie C Jansen, Apr 16, 2015
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    • "A major concern that has arisen among government programs is that this increasing trend will likely not be diminished in the nearterm future. Furthermore, the principal, proven vector species Aedes aegypti and the recently invasive Aedes albopictus have maintained stable or even growing populations from rural to urban settlements and from low to higher elevations (Higa, 2011; Jansen and Beebe, 2010; Lambrechts et al., 2010). Besides the lack of trash collection, poor municipal piped water supplies, uncontrolled urban development and insecticide resistance, weaknesses of vector control methodologies have undoubtedly contributed to maintain abundant Ae. aegypti and Ae. "
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    ABSTRACT: The arrival of chikungunya fever (CHIKF) in Latin American countries has been expected to trigger epidemics and challenge health systems. Historically considered as dengue-endemic countries, abundant Aedes aegypti populations make this region highly vulnerable to chikungunya virus (CHIKV) circulation. This review describes the current dengue and CHIKF epidemiological situations, as well as the role of uncontrolled Ae. aegypti and Ae. albopictus vectors in spreading the emerging CHIKV. Comments are included relating to the vector competence of both species and failures of surveillance and vector control measures. Dengue endemicity is a reflection of these abundant and persistent Aedes populations that are now spreading CHIKV in the Americas. This article forms part of a symposium in Antiviral Research on "Chikungunya discovers the New World."
    Full-text · Article · Oct 2015 · Antiviral research
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    • "Aedes species have historically expanded their global distribution in association with humans (Tabachnick and Powel 1979), exploiting the ability of having dryresistant eggs that can be carried with commodities around the globe. The invasive mosquito species (IMS) Aedes albopictus (Skuse) (¼ Stegomyia albopicta sensu Reinert et al. 2004) has experienced a dramatic global expansion facilitated by human activities, in particular the movement of used tires and " lucky bamboo " (Paupy et al. 2009), and over the past 25 yr, there has been an increase in the worldwide distribution of the yellow fever vector Aedes aegypti (L.) (¼ Stegomyia aegypti sensu Reinert et al. 2004) (Jansen and Beebe 2010). From the 2000s decade, Europe has witnessed several outbreaks of mosquito-borne diseases. "
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    ABSTRACT: Since 2009, The Netherlands Food and Consumer Product Safety Authority carries out surveys focusing on, amongst others, the presence of invasive mosquito species (IMS). Special attention is given to exotic container-breeding Aedes species Aedes aegypti (L.), Aedes albopictus (Skuse), Aedes atropalpus (Coquillett), and Aedes japonicus japonicus (Theobald). This study describes the implementation of real-time PCR tests described by Hill et al. (2008) for the identification of Ae. aegypti and Ae. albopictus, and the development of two novel real-time PCR tests for the identification of Ae. atropalpus and Ae. j. japonicus. Initial test showed that optimization of elements of the Ae. aegypti and Ae. albopictus tests was needed. Method validation tests were performed to determine if the implemented and newly developed tests are fit for routine diagnostics. Performance criteria of analytical sensitivity, analytical specificity, selectivity, repeatability, and reproducibility were determined. In addition, experiments were performed to determine the influence of environmental conditions on the usability of DNA extracted from mosquito specimens trapped in BG-Sentinel traps. The real-time PCR tests were demonstrated to be sensitive, specific, repeatable, reproducible, and are less prone to false negative results compared to partial cytochrome c oxidase I gene sequencing owing to the DNA fragmentation caused by environmental influences.
    Full-text · Article · May 2015 · Journal of Medical Entomology
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    • "Ae. aegypti prefers human habitations as they provide resting and host seeking possibilities (Weaver & Reisen, 2009). The species will readily enter buildings (Jansen & Beebe, 2010; Reiter, 2010), and its activity is both diurnal and crepuscular (Turell et al., 2005; Jansen & Beebe, 2010). "
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    ABSTRACT: Among the invasive mosquitoes registered all over the world, Aedes species are particularly frequent and important. As several of them are potential vectors of disease, they present significant health concerns for 21st century Europe. Five species have established in mainland Europe, with two (Aedes albopictus and Aedes japonicus) becoming widespread and two (Ae. albopictus and Aedes aegypti) implicated in disease transmission to humans in Europe. The routes of importation and spread are often enigmatic, the ability to adapt to local environments and climates are rapid, and the biting nuisance and vector potential are both an ecomonic and public health concern. Europeans are used to cases of dengue and chikungunya in travellers returning from the tropics, but the threat to health and tourism in mainland Europe is substantive. Coupled to that are the emerging issues in the European overseas territorities and this paper is the first to consider the impacts in the remoter outposts of Europe. If entomologists and public health authorities are to address the spread of these mosquitoes and mitigate their health risks they must first be prepared to share information to better understand their biology and ecology, and share data on their distribution and control successes. This paper focusses in greater detail on the entomological and ecological aspects of these mosquitoes to assist with the risk assessment process, bringing together a large amount of information gathered through the ECDC VBORNET project.
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