结核病流行病学的新近研究进一步阐明了结核病在社会人群中的存在及其影响。尽管这些研究仍将继续深入并论证下去,但对发展中国家制订防痨规划、对发达国家根除结核病计划的安排均已发生重大影响。一、结核菌与人群之间的天然关系:研究工作主要包括结核病的传播、感染后传染性肺结核病的发生、传染性肺结核患者的命运三个方面。(一)结核菌的传播:研究这个问题是要知道一年内人群中受单一传染源排出的结核菌所感染者的平均数,在无牛源性感染的情况下,排菌性肺结核患者是唯一的传染源。如果知道年感染率和传染源率,则可求得传 Recent research on the epidemiology of tuberculosis further elucidates the existence and impact of tuberculosis in the social population. Although these studies will continue to be further discussed and argued, the development of anti-tuberculosis programs in developing countries and the arrangements for the eradication of tuberculosis in developed countries have all had a significant impact. First, the natural relationship between tuberculosis and the population: research work mainly includes the spread of tuberculosis, infectious tuberculosis after infection, the fate of infectious tuberculosis patients in three areas. (I) The spread of TB: To study this issue is to know the average number of people infected with TB discharged from a single source of infection within a year. In the absence of bovine infection, patients with IBD are the only The source of infection. If you know the annual infection rate and infection rate, you can get biography