气候变化、蚊虫栖息地的扩大与全球登革热病例的大幅上升有关。 Climate change, expanding mosquito habitats, is linked to a significant surge in global dengue cases.

美国研究人员发现,气候变化是今年全世界登革热病例数量创纪录的近五分之一的原因。 US researchers found that climate change is responsible for nearly a fifth of the record number of dengue cases worldwide this year. 气温上升使蚊虫能够蔓延到新的地区,从而增加登革热的传播。 Rising temperatures are enabling mosquitoes to spread to new areas, increasing dengue transmission. 登革热传播的理想温度在20-29摄氏度之间,在秘鲁、墨西哥、玻利维亚和巴西地区,25年内病例可能增加200%。 Ideal temperatures for dengue spread are between 20-29 degrees Celsius, and areas in Peru, Mexico, Bolivia, and Brazil may see a 200% increase in cases within 25 years. 该研究估计,由于全球供暖,2.57亿人可能面临登革热率翻一番。 The study estimates that 257 million people could face doubled dengue rates due to global heating.