An approach based on mosquitoes carrying a conditional dominant lethal gene (release of insects carrying a dominant lethal, RIDL) is being developed to control the transmission of dengue viruses by vector population suppression. A transgenic strain, designated OX3604C, of the major dengue vector, Aedes aegypti, was engineered to have a repressible female-specific flightless phenotype. This stra...

The proliferation of Aedes aegypti, a species of mosquito that is the vector of the dengue pathogen, is being augmented by the population's lack of care in allowing the formation of larval habitats. One form of controlling dengue is the distribution of information on the mosquito to improve awareness and to provide the means necessary for the elimination of its reproductive habitats. To evaluat...

Dengue and dengue haemorrhagic fever continue to be major infectious diseases of public health importance in countries of the western Pacific and Southeast Asia regions. These regions are experiencing a geographical spread, both in terms of distribution of the virus and the mosquito vector, with an increase in the frequency of epidemics. Since 1963, outbreaks of dengue/DHF have been recorded in...

Dengue fever incidence and its geographical distribution are increasing throughout the world. Quality and timely information is essential for its prevention and control. A web based, geographically enabled, dengue integral surveillance system (Dengue-GIS) was developed for the nation-wide collection, integration, analysis and reporting of geo-referenced epidemiologic, entomologic, and control i...

In West and Central Africa endemic malaria and epidemic yellow fever are still main causes of morbidity and mortality. From Dakar in Senegal to Kinshasa in the Democratic Republic of Congo the pattern of malaria transmission shows a huge variability, in term of dynamics (rhythm and intensity) of transmission, as well as in terms of the vector species involved. The Plasmodium annual entomologica...

BACKGROUND Dengue fever, caused by a mosquito-transmitted virus, is an increasing health concern in the Americas. Meteorological variables such as temperature and precipitation can affect disease distribution and abundance through biophysical impacts on the vector and on the virus. Such tightly coupled links may facilitate further spread of dengue fever under a changing climate. In the southeas...

Vector surveillance is crucial for implementation of appropriate vector control strategies to reduce the transmission vector-borne diseases such as dengue, a major public health concern in Sri Lanka. Aedes aegypti and Ae. albopictus are primary secondary vectors dengue virus, respectively. Dengue endemic Jaffna District presence from many water bodies, including brackish habitats, reported. The...

Dengue, a disease caused by group B flavivirus (I), has caused serious epidemics in the Caribbean area and in the tropical countries of Asia and Africa. The virus, of which there are four serotypes (dengue 1, dengue 2, dengue 3, and dengue 4), is transmitted by the Aedes aeg@ti mosquito, which also transmits yellow fever; the mosquito Aedes albopictus also acts as a dengue vector in Southeast A...

BACKGROUND Mathematical models have been used to study the dynamics of infectious disease outbreaks and predict the effectiveness of potential mass vaccination campaigns. However, models depend on simplifying assumptions to be tractable, and the consequences of making such assumptions need to be studied. Two assumptions usually incorporated by mathematical models of vector-borne disease transmi...

BACKGROUND Dengue virus is the causative agent of dengue fever, a vector borne infection which causes self-limiting to life threatening disease in humans. A sero-epidemiological study was conducted to understand the current epidemiology of dengue virus in Pakistan which is now known as a dengue endemic country after its first reported outbreak in 1994. METHODS To investigate the prevalence of...