The main purpose of study is to evaluate the safety and immunogenicity of different dose levels of mRNA-1647 versus control in healthy cytomegalovirus (CMV)-seronegative and CMV-seropositive female and male participants 9 to 15 years of age. In addition,mRNA-1647 will be evaluated in female participants 16 to 25 years as a comparator cohort.
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Ages Eligible for Study | Min Age: 9 years - Max Age: 25 years |
Sexes Eligible for Study | All |
Accepts Healthy Volunteers | Yes |