Ukázalo se, že šest týdnů po jediné dávce vakcíny je imunogenita nynější, za chladna stabilní formy vakcíny podobná imunogenitě dřívější formy
Immunogenicity Immunogenicity was studied in children 12 through 23 months of age with a negative clinical history of measles, mumps, rubella, and varicella who participated in 5 randomized clinical trials. The immunogenicity of the current refrigerator-stable formulation was shown to be similar to the immunogenicity of the earlier formulation of ProQuad six weeks after a single dose of the vaccine.