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A member asked:
If my 4 month old has chicken pox is it also likely my 6 year-old will still them too even if he has already been vaccinated?
A doctor has provided 1 answer
Possibly: The varicella vaccine is considered 85% protective against infection with 1 & >95% with 2 doses. A single dose is thought to eliminate risk of severe disease. If your 6yo was vaccinated, his risk is low but 10-21 days after the 4mo broke out it should appear it it is going to. Transmission to susceptible family approaches 100%.
Answered 10/3/2016
5.7k views
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