China is currently "sporadic". US, UK are "endemic".
Lesson 1: Introduction to Epidemiology Section 11: Epidemic Disease Occurrence
Level of disease The amount of a particular disease that is usually present in a community is referred to as the baseline or endemic level of the disease. This level is not necessarily the desired level, which may in fact be zero, but rather is the observed level. In the absence of intervention and assuming that the level is not high enough to deplete the pool of susceptible persons, the disease may continue to occur at this level indefinitely. Thus, the baseline level is often regarded as the expected level of the disease.
While some diseases are so rare in a given population that a single case warrants an epidemiologic investigation (e.g., rabies, plague, polio), other diseases occur more commonly so that only deviations from the norm warrant investigation. Sporadic refers to a disease that occurs infrequently and irregularly. Endemic refers to the constant presence and/or usual prevalence of a disease or infectious agent in a population within a geographic area. Hyperendemic refers to persistent, high levels of disease occurrence.
因为最近几天国内的疫情稍微要严重了那么一些，毕竟新增的确诊病例相比较前几天来说，突然增加了，在前几天的时候可以说国内的新增病例都已经清零了。
所以这两天我对于这个事情也是比较关注的，毕竟这个疫情要是控制不好的话，卷土重来的可能性还是有的。
今天刚一起床，打开电脑就看到媒体发的一个标题，说的是新增确诊病例18例，其中本土病例四例。当时就给我吓一跳，因为我看的时候重点是看的前一句话，也就是说，新增确诊病例18例，心里想着昨天的时候新增的病例才四个，今天就突然多了18个，那等到后天的时候是不是还会翻倍呢？是不是这个疫情又卷土重来了呢？
好家伙，仔细往下一看，本土的病例是四个，虽然说新增的确诊病例是有18个，但是剩下14个确诊的病例都是境外输入的，也就是说不是本土的病例。
也不知道这些媒体是不是在故意误导人，你都不是本土的确诊病例，为什么还要算在新增的确诊病例当中呢？因为大家看这个数据，首先想的就是国内增加的，本土增加的，所以，是把输入的病例和本土的病例，是分开的。
都是不注意啊
China is currently "sporadic". US, UK are "endemic".
Lesson 1: Introduction to Epidemiology
Section 11: Epidemic Disease Occurrence
Level of disease
The amount of a particular disease that is usually present in a community is referred to as the baseline or endemic level of the disease. This level is not necessarily the desired level, which may in fact be zero, but rather is the observed level. In the absence of intervention and assuming that the
level is not high enough to deplete the pool of susceptible persons, the
disease may continue to occur at this level indefinitely. Thus, the baseline level is often regarded as the expected level of the disease.
While some diseases are so rare in a given population that a single case
warrants an epidemiologic investigation (e.g., rabies, plague, polio), other diseases occur more commonly so that only deviations from the norm warrant investigation. Sporadic refers to a disease that occurs infrequently and
irregularly. Endemic refers to the constant presence and/or usual prevalence of a disease or infectious agent in a population within a geographic area. Hyperendemic refers to persistent, high levels of disease occurrence.