BCG vaccination

What parents fear most is their children getting sick, but babies have relatively low immunity, so they are easily attacked by diseases. So how can we keep children away from diseases? In fact, various vaccines play a big role in preventing children from getting sick. BCG vaccination is a common vaccination, and BCG vaccination is very effective in preventing tuberculosis in children.

Many parents still don't know much about vaccines. They just take their children to get vaccinated when the time is right, but they don't have much common knowledge about vaccines. So what is BCG vaccination? What are the functions of BCG vaccination? BCG is a vaccine made from live, non-toxic tuberculosis bacteria that has been processed by special methods. BCG vaccination can enable the human body to produce specific immunity against tuberculosis bacteria, prevent the hematogenous spread of tuberculosis infection in the human body, reduce the incidence of tuberculosis and severe tuberculosis such as miliary tuberculosis and tuberculous meningitis.

Therefore, BCG vaccination is very effective in preventing tuberculosis, especially in children. However, the immune effect of BCG is the same as other preventive injections. The protective effect is relative and has a limited duration. Therefore, you still need to pay attention to preventing tuberculosis infection after receiving BCG vaccination.

Precautions for BCG vaccination: What kind of people should be vaccinated with BCG? Mainly infants and young children. Since the incidence of tuberculosis in my country is still serious and infants cannot obtain immunity to tuberculosis from their mothers, children should be vaccinated with BCG as early as possible, generally when the newborn is born, or at the earliest within one year old. Those who have been vaccinated with BCG do not need to be revaccinated.

The reaction after BCG vaccination is different from that of general vaccinations. Usually about 3 weeks after vaccination, redness and swelling will appear at the vaccination site, gradually softening in the middle and forming small white pustules. After the pustules rupture, pus will be discharged, and it will take 1-2 weeks for a scab to form. After healing, a round scar may remain. The above process generally lasts about 2 months.

After vaccination with BCG, the lymph nodes near the vaccination site (mostly the axillary lymph nodes) will often swell. This is a normal reaction. As the vaccination site heals, the swollen lymph nodes will disappear on their own. Hot compresses can be used to promote its disappearance. If an abscess is formed, you can ask the doctor to use a syringe to extract the pus to promote healing. It generally does not affect the child's health.

Some parents may have doubts about the safety of vaccines. BCG vaccination is a very safe vaccination. However, it should be prohibited for patients with low immune function caused by some immunodeficiency diseases, malignant diseases, leukemia, etc.