BACKGROUND Environmental factors such as temperature can alter mosquito vector competence for arboviruses. Results from recent studies indicate that daily fluctuations around an intermediate mean temperature (26°C) reduce vector competence of Aedes aeygpti for dengue viruses (DENV). Theoretical predictions suggest that the mean temperature in combination with the magnitude of the diurnal temper...

Engineered underdominance is one of a number of different gene drive strategies that have been proposed for the genetic control of insect vectors of disease. Here we model a two-locus engineered underdominance based gene drive system that is based on the concept of mutually suppressing lethals. In such a system two genetic constructs are introduced, each possessing a lethal element and a suppre...

Mosquitoes apart from a biting nuisance, are responsible for transmitting diseases like malaria, filariasis, dengue, dengue haemorrhagic fever, etc. Malaria is one of the most formidable and serious public health problems in northeastern region (NE) of India in general and Assam in particular1. Stable malaria with preponderance of Plasmodium falciparum infection (60–90%) is the main characteris...

Dengue has become a serious public health problem in India. More than 50 outbreaks of dengue have been reported in different parts of the country1,2. In India Aedes aegypti Linn (Diptera: Culicidae) is a principal vector of dengue and dengue haemorrhagic fever (DHF)3. Dengue virus has also been recently detected in Ae. albopictus Skuse4. Ae. aegypti has a widespread distribution in many towns a...

Background: Due to the absence of an effective vaccine for dengue, community-led vector control strategy could be a sustainable approach dengue prevention. Therefore, this study aimed assess people’s knowledge vectors and practice preventive measures avoid mosquitoes by means structured questionnaire. Methods: A telephone-based sur...

BACKGROUND Dengue is the second most important vector-borne disease of humans globally after malaria. Incidence of dengue infections has dramatically increased recently, potentially due to changing climate. Climate projections models predict increases in average annual temperature, precipitation and extreme events in the future. The objective of this study was to assess the effect of changing c...

Background & Objectives: Dengue and Chikungunya risk, based on socio-cultural and environmental factors and its possible spatial relationship to be investigated broadly. The aim of study is to explore epidemiology of risk factors of Dengue and Chikungunya prevalence and incidence, mapping the diseases prevalence in the year 2011for future planning containment measures in Western Ghats districts...

BACKGROUND Dengue infection is endemic in many regions throughout the world. While insecticide fogging targeting the vector mosquito Aedes aegypti is a major control measure against dengue epidemics, the impact of this method remains controversial. A previous mathematical simulation study indicated that insecticide fogging minimized cases when conducted soon after peak disease prevalence, altho...

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...