Factors causing dengue fever spread, awareness must to avoid outbreaks
(WorldNews Pakistan)

Islamabad : The population of dengue fever vector aedes aegypti fluctuates with temperature, rainfall and humidity as it is high in rainy season and low in extreme hot weather and during rainy season, the risk of virus transmission by the vector is greater. Dengue infections are generally occurred during or after rain, as an outcome of rise in vector population. Preventing or reducing dengue virus transmission depends entirely on controlling the mosquito vectors or interruption of human–vector contact. Control measures are necessary as dengue fever (DF) and dengue haemorrhagic fever (DHF) cases increase proportionally with the larval density. This is high time to start social...