How long does it take to get hepatitis B vaccine?

After the hepatitis B vaccine, generally in about a month will produce antibodies.

However, the antibody titer may be relatively low, the effect is not obvious. Usually, hepatitis B vaccine needs three shots, after the first shot, only about 30% of people will produce hepatitis B surface antibodies, and antibody effect is not stable. After the second shot, there will be 90% of people produce antibodies; after the third shot, the antibody positive rate can reach 96%, and antibody effect can continue to maintain a high level. Therefore, in order to obtain better immune effect, it is recommended to complete the vaccination of three doses of hepatitis B vaccine according to the prescribed vaccination procedure.