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Immunization against Hepatitis A
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DOI：10.1101/cshperspect.a031682.png)
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En 中文
Worldwide, there are multiple formaldehyde-inactivated and at least two live attenuated hepatitis A vaccines now in clinical use. The impressive immunogenicity of inactivated vaccines is reflected in rapid seroconversion rates, enabling both preexposure and postexposure prophylaxis. Universal childhood vaccination programs targeting young children have led to significant drops in the incidence of hepatitis A both in toddlers and in susceptible nonimmune adults in regions with intermediate endemicity for hepatitis A. Although the safety of inactivated vaccines is well established, further studies are needed concerning the implications of fecal virus shedding by recipients of attenuated vaccines, as well as the long-term persistence of immune memory in children receiving novel immunization schedules consisting of single doses of inactivated vaccines.
Keyword:
IMMUNE SERUM GLOBULIN
VACCINATION PROGRAM
VIRAL-HEPATITIS
UNITED-STATES
VIRUS
VACCINES
SINGLE
CHILDREN
IMMUNOGENICITY
PERSISTENCE
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