​                                              Hepatitis B vaccine



Recommended schedule:


- The first dose of a three-dose schedule should be administered at birth, second dose at 6 weeks, and third dose at 6 months (i.e. 0–6 weeks–6 months).



Minimum age:


 Birth
  - Administer monovalent hepatitis B vaccine to all newborns within 48 hours of birth.


  - Monovalent hepatitis B vaccine should be used for doses administered before age 6 

     weeks.


  - Administration of a total of 4 doses of hepatitis B vaccine is permissible when a

     combination vaccine containing hepatitis B is administered after the birth dose

.
  - Infants who did not receive a birth dose should receive 3 doses of a hepatitis B 

    containing vaccine starting as soon as feasible.


  - The ideal minimum interval between dose 1 and dose 2 is 4 weeks, and between dose 2

     and 3 is 8 weeks. Ideally, the final (3rd or 4th) dose in the hepatitis B vaccine series

     should be administered no earlier than age 24 weeks and at least 16 weeks after the

     first dose, whichever is later.


  - Hepatitis B vaccine may also be given in any of the following schedules: Birth, 1 and 6

     months, birth, 6 and 14 weeks; 6, 10 and 14 weeks; birth, 6, 10 and 14 weeks, etc.


  - All schedules are protective.


  - Administer the 3-dose series to those not previously vaccinated.


  - In catch-up vaccination, use 0, 1, and 6 months schedule.