The security of vaccine receives much concern The low probability of bad reaction takes place

The security of vaccine receives much concern The low probability of bad reaction takes place
The security of vaccine receives much concern The low probability of bad reaction takes place
Recently, " vaccine " Become the focus that the public pays close attention to again. Since Shanxi vaccine incident, Anhui vaccine incident, 7 million children in Guangdong begin to accept Measles Vaccine is strengthened, inoculated - --The public pays close attention to the security of vaccine day by day, it is more and more too whether to give one's own child a vaccine inoculation doubt or not. Yangcheng Evening News reporter has interviewed disease in Guangdong Province and accused of Xu RuiHeng, scientific advisor of centre, specially, ask him to introduce vaccine and anti- disease principle of vaccine to everybody, hope to let readers understand more. Deactivate, let the virus " turn respectable " Why produced vaccine out, this says a little the long words. Different types of vaccine production ways differ greatly. In order to the one that deactivate " First shed vaccine " For example. The reproduction environment that influenza virus adapts to most, it is a chicken embryo while hatching. After chicken's embryo is arrived in the enterprises producing vaccine, staff members inject the virus one into first that World Health Organization recommends to flow on chicken's embryo. A chicken embryo equals a piece of parent, the virus is injected after on chicken's embryo, relying on abundant nutrition will be bred rapidly. Through one cycle, the chicken embryo full of virus will be sent the full-automatic chicken's embryo to reap on the plane, draw the virus liquid. After the intersection of virus and liquid the deactivation, the virus breeding will lose and infect ability, but at the same time, they are still keeping antigen of virus. In the virus " Turn respectable " And then, pass through course such as purification, cleavage again, vaccine basically takes shape. From injecting the virus into chicken's embryo, takes 45 days to produce vaccine. Neglect there will be vaccine inoculation of a fatal risk that protects the human body too the prerequisite is small: Use qualified vaccine. Any some small mistakes, examining a little small carelessness in the course of the production process, may all bring the fatal risk to persons who inoculate. If is poisonous one of vaccine problematic? Living vaccine weak poisonous or win under the intersection of the laboratory and particular terms obtained to separate reduce the poison one to make from nature. The poisonous one still keeps certain residual virulence. Malicious one is proved that safe and effective, just produced in a large amount and used extensively rigorously enforcing seed selection at present. If are not the purity of vaccine and degree of consistency enough? Some vaccine may influence the degree of consistency of the products because of misoperation in production. If are the raw materials that vaccine uses polluted? Raw materials such as animal's organ, tissue, serum of animal, enzymic preparation,etc. used in vaccine production, perhaps there is potential causing the son of cause of disease. Why can immune vaccine prevent disease infected with and brought gently for a long time? Xu RuiHeng answers, vaccine is entered in our human body, will be regarded as " outside foreign matter " like pathogenic microbe by our immune system ,Impel the organism to produce immunity, confront with it. Say popularly, it is very slight infection that the person is of once. There are our immune systems " Memory " Ability. Once through inoculating vaccine, contact bacterium or virus like this (certainly deal with) once And then, they will even keep immunity all one's life in several years, decades; So when this kind of real bacteria or virus invade our human bodying, the immune system can react rapidly even more! This can explain too why not propose the low one of immunity or sick person's vaccine inoculation, the emergence probability and severity of the vaccine bad reaction will increase. Take place the intersection of bad reaction and probability, behind the low vaccine inoculation, often can appear someone or some people have, generate heat, inoculate the intersection of position and uncomfortable pain,etc.. In fact all these are the general response after the inoculation that own characteristics of vaccine cause, the probability happening is very low. The intersection of coincidence and disease and heart react and have nothing to do with vaccine because of the sex after the immunization campaign, time is related or it is fixed that cause and effect is related and very difficult. Distinguish coincidence incident and really react and usually require normal science to investigate, affirm clearly it is very rare whether vaccine causes a certain bad reaction. Why does vaccine is there bad reaction? Xu RuiHeng explains, a foreign matter enters body, it is the complete possibility that the bad result appears, especially also have faint toxicity to reduce poisonous vaccine, it is uncomfortable that may produce behind entering the human body. In fact compared with medicine, the bad reaction of vaccine is much less, but people take medicine because of solving the disease agony, it is very high to its tolerance of bad reaction; Opposite vaccine is mostly healthy people ' The great majority are the infant and pre-school children) Offer and inoculate free, with the purpose of preventing, the public's tolerance to its bad reaction is much lower. In April of this year, 46 pupils in Huilai felt out of sorts after inoculating vaccine of hepatitis B, was accused of by disease being thought in the department later " the heart reacts because of the sex " . Nearly all vaccine may initiate " The heart reacts because of the sex " . Take parenteral vaccine as the core more, oral vaccine is rare. The crowd is basically the students in middle and primary school, at the age of 6-15. The heart reflects that generally has illness coming on quickly because of the sex, fully recovers either quickly, will not leave sequela, will not jeopardize the life. What is it about the coincidence react? Xu RuiHeng explains, this means that is in the incubation period or prodromal stage of a certain disease during vaccine inoculation sharp the person who plants, this kind of disease breaks out after inoculating, form the coincidence with the immunization campaign only on the time order and is concerned with. For example Guangdong Province involves 7 million children if this Measles Vaccine strengthens the immunity alone, according to normal probability, in these 10 days, must want someone to fall ill, if just he inoculated vaccine, parents are very easy to link this disease and vaccine together. Compared with first two kinds of side reaction, the coincidence is less controllable in response. We inoculate the vaccine today The national immunization programs for children is planned to be already expanded to " 12th disease of 10 seedlings " ,Namely Bacillus Calmette-Guerin, polio vaccine, Measles Vaccine, whooping cough, diphtheritis and tetanus unite vaccine, hepatitis B vaccine, epidemic encephalitis vaccine, B's brain vaccine, Rubella Vaccine, Mumps Vaccine and hepatitis A vaccine three times; Prevent from tuberculosis, poliomyelitis ' Poliomyelitis) Disease, measles, whooping cough, diphtheria, tetanus, hepatitis B, epidemic encephalitis, B's brain, nettle rash, parotitis and hepatitis A. In addition, there are 10 kinds of unscheduled vaccine (class II vaccine) at one's own expense . Neonate, from born to within the 18 will it be age month, " the intensive issue " of vaccine inoculation ,In the meantime, parents separate, take one's own child to the relevant unit to inoculate once a month vaccine each time while being average. Before 6 years old, the immune vaccine of plan that children need to inject has the amount of time 24. The upper arm of one side of present adult of variolosus vaccine that disappeared forever yesterday will have several either large or small round scars, or well word scratch, that inoculates the trace that smallpox pupstule is left. Our country found the state, begin from 1949, vaccinate while being general while being mass through go all out with, spend, disappear already will it be the day after tomorrow 1961, China eliminates variola the world by 19 years ahead of time. In 1982, the whole world stopped vaccinating. So at the arm people that born under 1982 such as our country Have that broad bean greatly scar. Will foster it theoretically like vegetables fruit tomorrow, a kind of oral vaccine can be fostered success manually like fruit or vegetables, this kind of fruit or vegetables can keep fresh in several days, needn't refrigerate. Most oral vaccine are through deactivating or deactivating dealing with partly, while entering tissue, can stimulate the health organism to react, produce antibodies to play a immune role.


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