虽然我国在疾病控制方面已取得了相当大的成就,但对已到来的21世纪,仍有几大类疾病将对国人的健康造成严重的威胁。在这几类疾病中,传染病及寄生虫病居首位。近几年来,不论是发达国家还是发展中国家,艾滋病等性传播疾病和结核病都呈上升趋势。目前,全世界每年新发性传播病2.5亿 Although our country has made considerable achievements in disease control, there are still several major types of diseases that have posed serious threats to the health of Chinese people in the 21st century that has already come. In these types of diseases, infectious diseases and parasitic diseases ranked first. In recent years, both developed and developing countries have seen an upward trend in sexually transmitted diseases such as AIDS and tuberculosis. At present, there are 250 million new ones each year in the world