The purpose of this study is to evaluate the safety and immunogenicity of the recombinant hepatitis B vaccine (Hansenula polymorpha, 10μg), with an open-labelled design in adults and randomized, double-blinded, and positive controlled design in children and neonates.

This is a phase Ⅰ clinical trial of recombinant hepatitis B vaccine (Hansenula polymorpha,10μg) with an open-labelled design in adults and randomized, double-blinded, and positive controlled design in children and neonates. The control vaccine was the commercialized recombinant hepatitis B vaccine (Hansenula polymorpha,10μg) manufactured by Dalian Hissen Bio-pharm Lnc. Twenty four adults aged from 18 to 49 years will be vaccinated with one dose of investigational vaccine. Sixty children aged from 1 to 15 years will be randomly assigned in a 1:1 ratio to receive one dose of in investigational vaccine or control vaccine. Sixty neonates will be randomly assigned in a 1:1 ratio to receive three doses of investigational vaccine or control vaccine on the schedule of month 0,1,2. Safety profiles 30 days after each dose will be assessed based on all the participants, and immunogenicity will be assessed based on the enrolled chidren and neonates.

Inclusion Criteria:

• Adults aged 18~49 years, or children aged 1~15 years, or neonates within 24 hours of birth;
• Proven legal identity;
• Participants or guardians of the participants should be capable of understanding the written consent form, and such form should be signed prior to enrollment ;

Exclusion Criteria (For Adults):

• Breast feeding, pregnant, or expected to conceive in the next 60 days;
• History of allergy to any vaccine or vaccine ingredient, or serious adverse reaction(s) to vaccination, such as urticaria, difficulty in breathing, angioneurotic edema, abdominal pain, etc;
• Congenital malformation, developmental disorders, genetic defects;
• Autoimmune disease or immunodeficiency/immunosuppressive;
• Severe chronic diseases, severe cardiovascular disease, hypertension and diabetes that cannot be controlled by drugs, liver Kidney disease, malignant tumor;
• Severe nervous system disease or mental illness;
• Asplenia or functional asplenia;
• Diagnosed coagulation function abnormal (e.g., coagulation factor deficiency, coagulation disorder, or platelet abnormalities) , or obvious bruising or coagulation disorders;
• Any immunosuppressant, cytotoxic medicine, or inhaled corticosteroids (except corticosteroid spray for treatment of allergic rhinitis or corticosteroid treatment on surface for acute non-complicated dermatitis) within 6 month prior to study entry;
• Long term history of alcoholism or drug abuse;
• Administration of blood product within 3 months prior to the entry;
• Administration of any other investigational drugs within 30 days prior to the entry;
• Receipt of any attenuated live vaccine within 14 days prior to study entry;
• Receipt of any subunit vaccine or inactivated vaccine within 7 days prior to study entry;
• Any acute disease within 7 days prior to the study entry;
• Axillaty temperature > 37.0 °C;
• Any other factor that suggesting the volunteer is unsuitable for this study based on the opinions of investigators.

Exclusion Criteria (For Children):

• History of extra vaccination of Hepatitis B vaccine or vaccine containing hepatitis B except for the primary vaccination in the immunization planning program;
• History of allergy to any vaccine or vaccine ingredient, or serious adverse reaction(s) to vaccination, such as urticaria, difficulty in breathing, angioneurotic edema, abdominal pain, etc;
• Congenital malformation, developmental disorders, genetic defects;
• Autoimmune disease or immunodeficiency/immunosuppressive;
• Severe chronic diseases, severe cardiovascular disease, hypertension and diabetes that cannot be controlled by drugs, liver Kidney disease, malignant tumor;
• Severe nervous system disease or mental illness;
• Asplenia or functional asplenia;
• Diagnosed coagulation function abnormal (e.g., coagulation factor deficiency, coagulation disorder, or platelet abnormalities) , or obvious bruising or coagulation disorders;
• Any immunosuppressant, cytotoxic medicine, or inhaled corticosteroids (except corticosteroid spray for treatment of allergic rhinitis or corticosteroid treatment on surface for acute non-complicated dermatitis) within 6 month prior to study entry; Long term history of alcoholism or drug abuse;
• Administration of blood product within 3 months prior to the entry;
• Administration of any other investigational drugs within 30 days prior to the entry;
• Receipt of any attenuated live vaccine within 14 days prior to study entry;
• Receipt of any subunit vaccine or inactivated vaccine within 7 days prior to study entry;
• Any acute disease within 7 days prior to the study entry;
• Axillaty temperature > 37.0 °C;
• Any other factor that suggesting the volunteer is unsuitable for this study based on the opinions of investigators.

Exclusion Criteria (For Neonates):

• Neonates gestational age <37 weeks or >42 weeks;
• Birth weight <2500g for boy, <2300g for girl;
• Apgar score at birth <8;
• Positive for any of the mother's HBsAg, HBeAg, HBeAb, and HBcAb (check the laboratory report of the birth hospital);
• Parents have family history of convulsions, epilepsy, encephalopathy, etc.;
• Mother's immune function is low or history of organ transplantation or hemodialysis;
• Mother has history of allergy to any vaccine or vaccine ingredient, or serious adverse reaction(s) to vaccination, such as urticaria, difficulty in breathing, angioneurotic edema, abdominal pain, etc;
• Family history of coagulation function abnormal (e.g., coagulation factor deficiency, coagulation disorder, or platelet abnormalities) , or obvious bruising or coagulation disorders;
• Immune system function damage, or parents have autoimmune diseases or immunodeficiency/immunosuppression;
• Congenital malformation, developmental disorders, genetic defects;
• Diognosed or suspected of active infection, cardiovascular disease, etc.;
• Axillaty temperature > 37.0 °C;
• Any other factor that suggesting the volunteer is unsuitable for this study based on the opinions of investigators.

Open-labelled in the adults participants, and double-blinded in the children ans neonates participants.