Promising Mosquito Repellent Announced
效果明显的杀蚊剂问世
Published January 03, 2014
此视频发布于2014年1月3日
In many regions of the world, mosquitoes are a seasonal pest. In other regions, they carry serious diseases like malaria. The World Health Organization estimates that almost 630,000 people died of malaria-related causes in 2012, mostly in Sub-Saharan Africa. Now, a group of U.S.-based scientists is working to develop a more effective and less expensive mosquito repellent than currently in use. VOA’s George Putic has more.
在世界上很多地区,蚊子都是一种季节性害虫 。在其他地区,它们携带危险性疾病,例如疟疾 。世界卫生组织预计,2012年全球63万人的死亡都与疟疾有关,而这主要发生在撒哈拉以南的非洲地区 。如今,一个美国科学小组正努力研发一种比目前使用的更为有效杀蚊剂,它的价格也更为便宜 。本台记者乔治·布提斯为我们带来更多报道 。