When it comes to “hepatitis”, many people feel afraid to talk about “liver”, thinking that it is an infectious disease, will be infected to others, but also by hepatitis patients, so some people are diagnosed with “hepatitis After being diagnosed with “hepatitis”, some people will suffer a great psychological blow, ashamed to let others know their condition, and even afraid to go to the hospital, so that the disease continues to progress, and even more, after being diagnosed with “hepatitis”, some patients will strongly deny, saying that the doctor misdiagnosed; and for the “hepatitis” patients who are around them “The reason why these phenomena occur is that they are not only the most common, but also the most common. In fact, the reason for these phenomena, the most fundamental reason is that people have a misunderstanding of “hepatitis”, if you really understand the “hepatitis”, out of the misunderstanding, you will find that in fact “hepatitis If you really understand “hepatitis”, out of the misunderstanding, you will find that in fact “hepatitis” is a very common disease. Hepatitis, also known as “liver cell injury”, is a group of systemic diseases caused by various causes, mainly liver damage. According to the cause, it can be divided into viral hepatitis, alcoholic hepatitis, drug-related hepatitis, autoimmune hepatitis, hepatitis caused by metabolic disorders and hepatitis of unknown origin. Only viral hepatitis is really contagious, that is, the “hepatitis” that people usually call contagious is only a small part of all hepatitis. In other words, only a small fraction of all hepatitis is contagious, and only a small fraction of viral hepatitis can be transmitted by “eating together”. Diseases that can be transmitted to each other are called infectious diseases, and the transmission of infectious diseases requires three conditions: the source of infection, the route of transmission, and a susceptible population. Below, we will talk about the sources of infection, transmission routes and susceptible populations of viral hepatitis. Viral hepatitis is currently the main hepatitis A (hepatitis A), hepatitis B (hepatitis B), hepatitis C (hepatitis C), hepatitis D (hepatitis D), hepatitis E (hepatitis E), their pathogens are hepatitis A virus, hepatitis B virus, hepatitis C virus, hepatitis D virus, hepatitis E virus. Among them, hepatitis A and E only acute onset process, after active treatment can be cured, will not develop into chronic hepatitis, that is, people say “will not leave the root of the disease”, but a very small number of can develop into acute necrotizing hepatitis, the mortality rate is very high. The source of infection for hepatitis A and E is the patient with hepatitis A or E, and the carrier who has no symptoms and no impairment of liver function. They are mainly transmitted through the fecal-oral route, that is, through diet, and statistics show that this dietary transmission mainly refers to the common consumption of food or water with hepatitis A or E virus, while the chance of direct transmission between people is very small, that is, if you eat with a patient with hepatitis A or E, if the food itself does not carry the virus, you have little chance of being infected. 2010 There was a group case of hepatitis E infection in our city: 2 people came to the hospital within 2 days with “loss of appetite, weakness and yellow urine”, and it was found that they were both hepatitis E patients, and they were father and son. After the investigation, a total of 11 people were infected with hepatitis E virus, two of them were hepatitis E patients, and the other nine were hepatitis E recessive infections (only with hepatitis E virus, no conscious symptoms and impairment of liver function, may not be treated). In this case, 11 people ate food with hepatitis E virus together, and the 11 people did not infect other people with the virus later. The susceptible population for hepatitis A is mainly hepatitis A antibody-negative, mainly in young children, children and adolescents, who develop long-lasting immunity to hepatitis A after infection. The susceptible population for hepatitis E is almost the entire population, mainly adults. Infection with hepatitis E can also produce immune hepatitis E antibodies, but they are not present in the body for long, usually not more than 1 year, and remain susceptible to hepatitis E after the antibodies disappear. Hepatitis B and C can be acute or chronic. Generally speaking, after the hepatitis B or C virus enters the human body for the first time, an acute infection process is formed, and within six months, if the virus is not completely cleared, it will become chronic. Patients. The source of infection for hepatitis B and C is the patient who has hepatitis B and C, as well as the person who is often referred to as a carrier of the virus. The main routes of transmission for hepatitis B and C are blood, body fluids and mother-to-child transmission. For example, blood transfusion, tooth extraction, razor sharing, toothbrush sharing, organ transplantation, sexual intercourse, maternal delivery process can occur the virus transmission. Normal daily life, such as eating together, close contact, etc. generally will not transmit hepatitis B and C virus. The hepatitis C infection in a group that occurred in Anhui Province some time ago was transmitted through the blood route due to the lack of strict sterilization of injection needles. People who are susceptible to hepatitis B are those who are negative for hepatitis B surface antibody, which is the second of the five indicators of hepatitis B. If we have been vaccinated against hepatitis B and have developed surface antibodies, or if we have had an acute infection with hepatitis B and have recovered and developed surface antibodies, then we have a longer lasting immunity to hepatitis B. In the case of hepatitis C, because hepatitis C antibodies are not protective antibodies, the susceptible population for hepatitis C is also the entire population. Lastly, hepatitis D is rare because it cannot exist alone, it only exists as an overlapping infection with hepatitis B. Metaphorically speaking, we can call it a parasitic virus, it can only “live” on hepatitis B. Without hepatitis B, there is no hepatitis D. Therefore, the source of infection, transmission and susceptible people of hepatitis D is the same as hepatitis B. The above is the source of infection, transmission and susceptible people of viral hepatitis, know these general knowledge, I believe you will no longer have unnecessary wariness and discriminatory attitude towards viral hepatitis patients. For alcoholic hepatitis, drug hepatitis, autoimmune hepatitis, etc., they are not infectious diseases, so there is no transmission route to speak of, for these patients, we are worried about being infected, is really worry about the sky. Speaking of which, a joke comes to mind: during the chief physician’s checkup, a usually unmotivated intern student bravely said: “Teacher, can I ask a question? The chief physician felt that this life has progress, happy to say: what problem? Go ahead. The student asked: What are the main ways of transmission of alcoholic hepatitis? The chief physician froze for half a day and said with a little thought: I think, it should be a glass of wine!