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According to the CDC recommended vaccine schedule, infants are given the Hepatitis B vaccine in a three-dose series at birth, 1-2 months, and 6-18 months.
But, if you read the footnotes, when given in combination vaccines there can be 4 doses administered instead of just the recommended 3!!!!
"Routine Series:
• A complete series is 3 doses at 0, 1–2, and 6–18
months. (Monovalent HepB vaccine should be
used for doses given before age 6 weeks.)
• Infants who did not receive a birth dose should
begin the series as soon as feasible (see Figure 2).
• Administration of 4 doses is permitted when a
combination vaccine containing HepB is used after
the birth dose.
• Minimum age for the final (3rd or 4th) dose: 24
weeks.
• Minimum Intervals: Dose 1 to Dose 2: 4 weeks /
Dose 2 to Dose 3: 8 weeks / Dose 1 to Dose 3: 16
weeks. (When 4 doses are given, substitute “Dose
4” for “Dose 3” in these calculations.)"
Acute Disseminated Encephalomyelitis following Vaccination against Hepatitis B in a Child: A Case Report and Literature Review
Hepatitis B vaccination of male neonates and autism diagnosis, NHIS 1997-2002
The persistence of anti-HBs antibody and anamnestic response 20 years after primary vaccination with recombinant hepatitis B vaccine at infancy.
Adverse events associated with the hepatitis B vaccine in U.S. children less than six years of age, 1993, and 1994.
A one-year follow-up of chronic arthritis following rubella and hepatitis B vaccination based upon analysis of the Vaccine Adverse Events Reporting System (VAERS) database.
"After reviewing the literature, we observed that complications seen after Hepatitis B vaccination are sudden infant death syndrome, multiple sclerosis, chronic fatigue syndrome, idiopathic thrombocytopenic purpura, vasculitis optic neuritis, anaphylaxis, systemic lupus erythematosus, lichen planus, and neuro-muscular disorder. "
Hepatitis B vaccination and associated oral manifestations: a non-systematic review of literature and case reports
SEVEN-YEAR STUDY OF HEPATITIS B VACCINE EFFICACY IN INFANTS FROM AN ENDEMIC AREA (SENEGAL)
Hepatitis B vaccine induces apoptotic death in Hepa1–6 cells
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