Patient: Description of the condition (time of onset, main symptoms, hospital visited, etc.): If hepatitis B blood comes into contact with the skin and there is no breakage at the contact, it is sufficient to wash the blood in time. If there is bleeding at the contact, special treatment is needed (immediate check for hepatitis B antibodies and immediate immunoglobulin injection without antibodies.) In practice, however, we always encounter situations that fall somewhere in between. There is a break in the epidermis of the skin and a stinging pain on contact with soap and water. But there is no injury to the dermis (that is, no bleeding). What should I do if I come into contact with hepatitis B blood in such a place? Can the contact area be washed promptly, or do I need special treatment? What should I do if hepatitis B blood comes into contact with the mucous membrane of the eye or the mucous membrane of the mouth, which is not damaged by the naked eye? Wang Zhenyu, Department of Infectious Diseases, Tianjin Infectious Diseases Hospital: It is necessary to refer to the DNA load of the blood source, if the DNA is above the 5th power, it will be treated according to the high standard; if the DNA is below the 4th power, it will be treated according to the low standard. Wang Zhenyu, Department of Infectious Diseases, Tianjin Infectious Diseases Hospital: In a person’s life, there are many wrong things to do and many right things to do, and in addition to that, there are many things that he wants to do. Among these many, many things, they can be roughly divided into two main categories. 1.Because you tried hard and got involved, the result changed. 2, despite your efforts, participation, the results have not changed. People’s life, to put it mildly, is to do three things 1, the first category of things as much as possible to do. 2, the second category of things as much as possible do not do or do less. 3, the first category of things and the second category of things as early as possible to distinguish between. In the intermediate stage of evolution, the purpose of explaining experience, in the advanced stage of evolution, the purpose of applying experience, in the primary stage of evolution, the purpose of accumulating experience is to do things more accurately, in the intermediate stage of evolution, the purpose of explaining experience is to remember experience, in the advanced stage of evolution, the purpose of applying experience is to promote experience, but when people are in the advanced stage, sometimes Once the experience (or theory) is separated from the practical, its existence is very boring. Coming back to your question, your doubts belong to the purely theoretical level, and my explanation can also be said to be head-on. But in practice is not much use, or not to send the field is not clear, the reason is simple, whether you use high standards or use low standards, the result is almost the same, are not contagious.