在控制甚至根除寄生虫病方面已经取得了一些成功(例如,在美国的南部及古巴已消灭了疟疾),但是在许多热带的发展中国家,寄生虫病仍然是主要的卫生问题。这些疾病对经济的发展起到了阻碍作用。对许多寄生虫病的新的控制措施正在进行深入细致的研究。这些措施包括发展疫苗、新的化学 Some success has been achieved in controlling and even eradicating parasitic diseases (for example, malaria has been eradicated in the southern United States and in Cuba), but in many tropical developing countries parasitism remains a major health problem. These diseases have hindered economic development. New controls on many parasitic diseases are under intensive study. These include the development of vaccines, new chemistry