1971年,泛美卫生组织医学研究咨询委员会举行了有关虫媒疾病回升问题的讨论会。Dr.Groot在会上说:“近十年来,虽然我们拥有较多的防制昆虫媒介的手段和资源,却有许多虫媒疾病在我们认为已经消灭之后又死灰复燃”。当时的与会者都希望能促进对虫媒疾病的研究,找到预防和控制的办法,防止回升与散布.不幸的是13年后的今天,情况更加不妙。亚洲不少地区十多年前已完全控制了疟疾,曾宣布已消灭此病,现 In 1971, the PAHO Medical Research Advisory Committee held a seminar on the recovery of insectborne diseases. Dr.Groot said at the meeting: “Although we have more means and resources to control insect vectors in the past decade, many insect-borne diseases have resurfaced once we think it has been eliminated.” At that time, all the participants in the meeting hoped to promote the study of the disease of the insect-borne diseases and find ways of preventing and controlling them so that they could not be picked up and dispersed. Unfortunately, the situation is even worse after 13 years. Malaria has been completely controlled in many parts of Asia more than a decade ago. It was announced that it has been eliminated, and now