Why do you have to be vaccinated since childhood?

Why do you need to be vaccinated from an early age, or even in different years (months) and seasons?

First, let's learn what a vaccine is.

Vaccine simply means that we artificially attenuate or inactivate some pathogenic pathogens, viruses or bacteria or some of their antigen components, and then implant some antigens into the human body to stimulate the human body to produce hangti. This antibody is aimed at the disease that this vaccine is aimed at.

At this time, the vaccine is like a special soldier or a policeman in our body. Once the pathogen targeted by this vaccine invades our body, the body will effectively mobilize these forces and destroy them. Therefore, the vaccine is targeted. From this perspective, it is not enough to have a strong body. It is also necessary to enhance the immune ability of the body through vaccination.

When it comes to vaccines, everyone is familiar with them, but now there are many kinds of vaccines. What should I choose, which vaccines must be vaccinated, which vaccines can be chosen by myself, and what should I pay attention to before and after injection?

The question of vaccination is often asked by friends around me in life. What worries us most is that the baby may have some abnormal reactions or side effects after vaccination. This is our greatest concern. The most common is the systemic reaction after vaccination. There are some mild symptoms all over the body, such as fever, and some local symptoms, such as local redness and fever, lumps and pus after DTP.

After these reactions, parents should not worry too much about whether the baby is allergic to this vaccine or not. In fact, these are some normal reactions. When we are vaccinated, we will ask the baby to stay at the vaccination site for a quarter of an hour to half an hour, or even an hour, just to observe the baby's reaction after vaccination.

Symptoms like the above are unique to vaccination. Vaccination is equivalent to artificial natural infection. After this natural infection, our bodies can produce corresponding bodies to prevent this infectious disease. Therefore, it is normal for the body to have such a natural reaction after vaccination.

In some ways, if the general reaction is heavier, maybe our vaccination effect will be better. Once we have this general reaction, what should we do? There is no need to worry here, and neither do parents. If you have a slight fever and feel unwell all over, let your child rest and drink plenty of water first, and it will pass in a day or two.

If the fever is relatively high, or lasts for more than 2 days, or there are some serious symptoms such as vomiting and diarrhea, parents are advised to take their children to the inoculation site for consultation and examination.

There are also some local masses, which is normal. For example, after BCG vaccination, local lumps form induration, even fester and scab, forming scars. This is normal. If the mass is larger than 15m in diameter, it should be applied with a hot towel. Once the lump is larger than 30mm, parents should pay more attention and take the baby to the hospital for examination.