It is possible for a baby to be infected by licking the blood of a hepatitis B carrier.
Hepatitis B carriers are chronic infectious disease patients who are infected by hepatitis B virus and continue to be positive for more than half a year for hepatitis B surface antigen, and the main ways of transmission are mother and child, blood and blood products, sexual contact, etc., in which infants, young children, adolescents, immune deficiencies or hypoplasia and other people are more likely to be infected.
Hepatitis B virus infection is only possible when the baby’s oral mucosa is broken and the baby comes into direct contact with the broken mucosa when licking the blood of a hepatitis B carrier. Hepatitis B virus is not transmitted through the digestive tract, and if the baby’s oral mucosa is not broken, the probability of being infected will be reduced to a great extent.
Hepatitis B vaccine belongs to a kind of vaccine in the National Immunization Program, and usually babies will be vaccinated with the first shot of Hepatitis B vaccine after birth, and the second and third shots of Hepatitis B vaccine will be given in the third and sixth months after birth. Therefore, the probability of a baby contracting hepatitis B after licking the blood of a hepatitis B carrier is very low.
However, after a baby licks the blood of a Hepatitis B carrier, the guardian should take the baby to the doctor immediately to confirm whether he/she is infected and at the same time, administer the relevant immunoglobulin.