社会的快速发展,经济全球一体化,极大地推动国际交通和人员往来的迅猛发展,加之地球气候迅速变暖,大量热带病北移,国外有害生物的入侵已经层出不穷,如:加拿大的一支黄花、美洲食人鱼、美洲优丽蝇等,从而也为医学媒介生物乃至传染病的传播提供了更快捷、更方便的机会和条件。 The rapid social development and global economic integration have greatly promoted the rapid development of international traffic and personnel exchanges. In addition, with the rapid warming of the Earth’s climate and the massive tropical diseases northward, the invasion of foreign pests has been experiencing an endless stream. For example, a Canadian yellow flower , The American piranha, the American fly, and so on, which also provides a more efficient and convenient opportunity and conditions for the spread of medical vector organisms and even infectious diseases.