Question
The child received a vaccine at birth, which is supposed to be effective for life. There was a HBV patient who unknowingly fed the child food from their mouth. Is there a possibility of transmission?
Answer
Based on your description, this situation is about asking whether the child, who has been vaccinated, can still be infected by the HBV patient. Guidance: It is best to avoid such feeding because the child’s immune resistance is weak. After receiving the vaccine, if the body does not produce antibodies, there is no immunity against HBV, and it is still susceptible to infection. Therefore, you should avoid others feeding the child. At the same time, have the child tested for the HBV panel to see if antibodies have been produced. If there are antibodies, the chance of infection is relatively small, and you can rest assured.