Deforestation and climate change are returning the mosquito - borne disease to parts of peru after 40 years . the insects ' biting rate in cleared areas is nearly 300 times that in virgin forests 森林过度采伐和气候变化使蚊虫传播的疾病重新开始在秘鲁的部分地区肆虐。人们在空旷地区受蚊虫叮咬的几率几乎是在原始森林地区的300倍。