Immunogenicity and safety in adults of hepatitis A virus vaccine administered as a single dose with a booster 6 months later
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Issue Date
1994-12
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J. Med. Virol. 1994, 44(4):443-5Abstract
An inactivated vaccine against hepatitis A was administered as a single 1,440 enzyme-linked immunosorbent assay (ELISA) units dose at month 0 with a booster at month 6 to 200 subjects divided into two age groups: group 1, 20-39 years (n = 134) and group II, 40-62 years (n = 66). At day 15, the seropositivity rates were 90% and 77% in groups I and II, respectively. At month 1 the seropositivity rate was 97% in both groups. At month 6 the seropositivity rates were 94% and 88% in groups I and II, respectively. One month after the booster, at month 7, 100% in both groups had become seropositive. The vaccine was well tolerated and did not cause any severe reactions. The results indicate that a single high vaccine dose offers protection against hepatitis A virus (HAV) for at least 6 months in the majority of cases where rapid vaccination is required even in travellers of older age. A booster dose will ensure long-term protection.Description
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http://dx.doi.org/10.1002/jmv.1890440424ae974a485f413a2113503eed53cd6c53
10.1002/jmv.1890440424
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