BANGKOK/HANOI/TAIPEI -- Dengue fever infections are surging across large swaths of Asia, spurred by climate change and unusually rainy weather, with Bangladesh's death toll this year exceeding 1,000.

A total of 206,288 dengue cases were recorded in Bangladesh from January to Oct. 1, according to UNICEF. The record-high 1,006 deaths were roughly quadruple the tally for all of last year. Children aged 15 and under accounted for 18% of infections and 11% of deaths.