儿童的预防接种（Vaccination for children）.doc

儿童的预防接种（Vaccination for children） In childhood, due to the physical development is not perfect, the defense function is also fragile, vulnerable to bacteria, viruses and other micro-organisms invasion, Cause all kinds of infectious diseases. Why should children vaccinate? After the baby is born, the body often also has from mothers all sorts of against disease the antibody, specially uses the breast feed person, the milk The juice also contains a certain amount of antibodies. As a result, babies are less infectious in their half year. After 6 months, the baby comes from the mothers body Antibody immunity gradually fades, at this point, if contact with viruses, bacteria and other pathogens, it is highly susceptible to infectious diseases. The old society was not heavy As for childrens health care, many lovely children have been deprived of their young lives by smallpox and measles. People infected with tuberculosis are also very young In. Polio or encephalitis, even if cured, can cause paralysis, mental retardation and so on Residual disease. Not only are the children suffering for life, but they also bring heavy burdens to their parents. Therefore, we must pay attention to the prevention of infectious diseases. The most important Whats needed is preventive vaccination on time. There are two ways to vaccinate: One is to inoculate and take out inactivated vaccines and vaccines for children before they become infected, so that antibodies can be produced in the body. like Soldiers usually practice combat training, as if by the same kind of bacteria or viruses attack, the body will be able to destroy this Some invading enemies. Vaccination, BCG vaccine, measles vaccine, Pertussis Vaccine and so on belong to this kind. This vaccination, doctor It is called artificial immunity. Usually, immunization occurs at about 1~4 weeks after vaccination, keeping immune antibodies For several days to several years, it is necessary to repeatedly vaccination. The other is to inject gamm