Not only are there more mosquitoes, but rapid urbanization is putting susceptible populations in closer contact with disease-carrying insects. Add inadequate or unprepared health services and circulation of a virus, and you have ingredients for an outbreak
Images from Bangladesh show patients in teeming hospital wards, lying beneath mosquito nets under lurid electric strip lights.Mothers cool their children from the sticky summer heat with hand-held fans while others rest on hospital floors, holding drips, waiting for a free bed.This is the worst outbreak Bangladesh has ever seen. Five times as many people were infected in August than the whole of 2018, and so far this year 57 people have died.
A recent study found that rising global temperatures caused by the climate crisis could see the female aedes aegypti mosquito which carries dengue -- along with other diseases such as chikungunya, yellow fever and Zika -- migrate to areas where it was not endemic before, with Europe, the US, East Asia and parts of central America, East Africa and Canada seeing large increases in risk.Modern lifestyles are also to blameBut climate is just one factor in dengue's spread.
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