How Long Does the Effectiveness of Hepatitis B Vaccine Last for Children?

How long is the validity period of hepatitis B vaccine for children? Generally speaking, the hepatitis B vaccine for children can last for more than ten years. However, it should also be determined according to specific individuals, because some people are not particularly sensitive to the effect of hepatitis B vaccine, and even do not produce antibodies after receiving three doses of hepatitis B vaccine.

Currently, children are generally vaccinated with hepatitis B vaccine at birth, and then vaccinated with one dose each at the first month and the sixth month, with a total of three doses, known as the 0-1-6 injection process. If a child is not vaccinated with hepatitis B vaccine at birth, such an injection process can also be adopted. After the injection is completed, most children can produce relatively high hepatitis B surface antibodies. On the whole, these people can generally maintain antibody positivity for more than ten years, and some can even reach more than two decades. Therefore, the validity period of hepatitis B vaccine for children can generally last for more than ten years. However, it should also be determined according to specific individuals, because some people are not particularly sensitive to the effect of hepatitis B vaccine, and even do not produce antibodies after receiving three doses of hepatitis B vaccine.

Generally speaking, hepatitis B vaccine is free for newborns, while it is self-paid for children, not free. Free hepatitis B vaccine is limited to newborns. Except for the standard free hepatitis B vaccine for newborns, others are self-paid. Without major chronic underlying diseases and obvious immune dysfunction diseases, regular vaccination with hepatitis B vaccine can generally produce hepatitis B surface antibodies, which can effectively prevent hepatitis B infection.