Second chickenpox shot for healthy kids after one prior vaccine
Treatments studied
Part of Infections clinical trials.
This study gives a second chickenpox vaccine dose to healthy children who were vaccinated once before. It mainly checks safety and measures the body’s immune response to see how well the second dose works.
Summary written for real people, not researchers, by Clin2.
Who can take part
- Child is 4 to 6 years old at the time you sign consent
- Child received a first chickenpox (varicella) vaccine at least 3 years ago
- Child has never had chickenpox infection (no past varicella illness)
- No close contact with someone who has chickenpox in the last 4 weeks
- Child has had no chickenpox vaccine shots more than once (not 2 or more times)
Quick eligibility check
Answer a few plain-language questions, based on this study's own requirements, to get a preliminary sense of fit.
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