Question
A newborn who is just over a month old received the second dose of the hepatitis B vaccine at a community health service center. The parents chose the imported vaccine, Yikexin. After the injection, the parents read the vaccine instructions and found that it was written that the vaccine should be administered on the anterolateral aspect of the thigh, not on the arm. This made the parents worry about whether the injection site was correct and whether this difference would affect the effectiveness of the vaccine.
Answer
Hello, please do not worry; it is also fine to inject it into the arm, which will not affect the effectiveness of the vaccine. Please drink plenty of water and rest.