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现代交通工具的不断革新使航速加快,万里行程朝发暮至,很大地促进了国际、洲际旅游和交往的日益繁荣,这对国家和民族间的相互了解,增加友谊是有很大裨益的。但由于交往频繁,亦带来了一些疾病的输进输出问题,其中疟疾的输入问题已引起国际公共卫生界的重视。根据 Bruce-Chwalt LJ(1982)的报道,通过国际航线的旅客70年代初为一亿二千万,嗣后逐年增
The continuous reform of modern means of transport speeding up the speed of travel miles miles, greatly promoted the international and intercontinental travel and exchanges more prosperous, which countries and nations to mutual understanding and increase friendship is of great benefit. However, due to frequent contacts, some diseases have also been brought in and out. The problem of malaria input has drawn the attention of the international public health community. According to Bruce-Chwalt LJ (1982), the number of travelers who traveled through international routes was 120 million in the early 1970s,