乙型肝炎病毒表面抗原 (Engerix-B, Heplisav-B, Pediarix +12)

概览

Hepatitis B Vaccine (Recombinant) is a solution of Hepatitis B surface antigen used to immunize patients against Hepatitis B.

作用机制

ENGERIX®-B induces specific humoral antibodies against HBsAg (anti-HBs antibodies). It is generally accepted that an anti-HBs titre greater than 10 IU/L correlates with protection against hepatitis B virus infection. More than 90% of healthy adults, children and neonates developed protective anti-HBs titres one month after completing a primary vaccination schedule of ENGERIX®-B (hepatitis B vaccine (recombinant)).

适应症

Active immunization against hepatitis B virus infection. The vaccine will not protect against infection caused by hepatitis A and non-A non-B hepatitis viruses. As hepatitis D (caused by the delta agent) does not occur in the absence of hepatitis B infection or carrier state, it can be expected that hepatitis D will also be prevented by vaccination with hepatitis B virus vaccine. The vaccine can be administered at any age from birth onwards. It may be used to start a primary course of vaccination or as a booster dose. It may also be used to complete a primary course of vaccination started with plasma-derived or yeast-derived vaccines or as a booster dose in subjects who have previously received a primary course of vaccination with plasma-derived or yeast-derived vaccines. In areas of low prevalence of hepatitis B, vaccination is strongly recommended in subjects who are at increased risk of infection. These include the following groups:

• Hepatitis A
• Viral Hepatitis B