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Vaccine. 1995 Aug;13(11):967-72.

Safety, tolerability, and immunogenicity of two regimens of Oka/Merck varicella vaccine (Varivax) in healthy adolescents and adults. Oka/Merck Varicella Vaccine Study Group.

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1
Merck Research Laboratories, West Point, PA, USA.

Abstract

A multicenter clinical trial was conducted among 757 healthy adolescents and adults, 13-54 years, to compare two regimens of Oka/Merck varicella vaccine with respect to safety, tolerability, and immunogenicity. Participants were randomized to receive two injections of vaccine either four or eight weeks apart and were followed for clinical reactions and serologic response. The two vaccine regimens were equally well tolerated. The seroconversion rates (gpELISA) four weeks after injection 1 and 2 were 72 and 99%, respectively, for those who received vaccine four weeks apart and 78 and 99%, respectively, for those who received vaccine eight weeks apart. The differences in seroconversion rates were not statistically significant. However, delaying the second dose to eight weeks resulted in a higher antibody titer one month after the second injection. Administration of a two-dose regimen of varicella vaccine to susceptible adolescents and adults is well tolerated and highly immunogenic.

PMID:
8525689
DOI:
10.1016/0264-410x(95)00046-4
[Indexed for MEDLINE]

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