After vaccination,
will have some normal reactions, such as redness, swelling, pain at the injection site,
and low fever in the body, etc.
generally does not require special treatment -
Most vaccination will not cause serious reactions after vaccination, but because each child has different physical constitutions, after vaccination, some local or systemic reactions of different severity may occur. In order to ensure safe and reduce reactions, various preventive measures must be taken when the child is healthy. Before the
vaccine is launched, it is necessary to go through clinical trials. Only when its protective effect on the population is far greater than the adverse consequences can it be approved for marketing. Like drugs, different vaccines will also produce a certain proportion of adverse reactions. Although the vaccine has been inactivated or attenuated, it is a protein or other antigenic substance after all, and it still has a certain stimulating effect on the human body. Vaccine reaction is actually a kind of self-protection for the human body. Just like colds and fevers, the body is resisting bacteria or viruses. After vaccination, the human body may experience allergic reactions such as fever and asthma. There is a professional term for this side effect called "hypersensitivity".
Most vaccinations will not cause serious reactions after vaccination, but because each child has different physical constitutions, some local or systemic reactions of different severity may occur after vaccination. In order to ensure safe reduction of reactions, various preventive measures must be carried out when the child is healthy.
In recent years, my country has administered about 1 billion doses every year, but after investigation and diagnosis, there are few abnormal reactions related to vaccination and are relatively serious, and the incidence is very low. Vaccination is still the most economical and effective means to prevent and control infectious diseases. The normal reaction after
vaccination includes: injection site redness, swelling, pain, low fever, etc. , which generally does not require special treatment and can recover on your own in one or two days. When there is a serious reaction, symptomatic treatment should be carried out under the guidance of a doctor. The results of the specific immune response caused by
vaccination are two aspects: is the immune protection effect; the other is the immune damage effect, including causing rapid or late-onset allergic reactions. The rapid-hair allergic reaction is generally caused by symptoms 30 to 60 minutes after vaccination, mainly manifested as allergic shock, urticaria, asthma, angioedema, , etc. Late allergic reactions generally occur in the human body 48 to 72 hours after vaccination, with the main symptoms such as nausea, vomiting, abdominal pain and erythema pleomorpha of the skin.
The main measure to avoid such reactions is that institutions authorized by Centers for Disease Control and Prevention must carry out vaccination, such as the prevention and protection department of Community Health Service Center, township and town health centers, etc. Contraindications for vaccinators strictly control all types of vaccines.
immunization contraindications include : people with acute diseases, people with altered immune function, people with previous vaccination adverse reactions, children with neurological diseases, patients with severe chronic diseases, people with allergic constitution (people who are allergic to the components of the vaccine), etc. Vaccination should be postponed when it is in the period of fever, acute diseases, acute attacks of chronic diseases, pregnancy, etc.
Nevertheless, vaccination has an extremely low risk of severe adverse reactions compared to the risk of infectious diseases that lead to infectious diseases.
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Edit丨Anmei
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