Chickenpox is usually mild in children but can be serious in adults, pregnancy and people with weakened immune systems. The vaccine is recommended for non-immune adults and those at higher risk.
Recommended for non-immune adults and teenagers, healthcare workers, and household contacts of people with weakened immunity. A blood test can confirm if you're already immune.
Two doses, 4–8 weeks apart.
No routine booster is needed after the two-dose course.
Two injections into the upper arm.
Two doses give long-lasting immunity in most people.
Usually mild — a sore arm or, occasionally, a mild rash.
It's a live vaccine, so it isn't given in pregnancy or to people with significantly weakened immunity — we assess this carefully.
In adults, pregnancy and immunocompromised people, chickenpox can lead to serious complications such as pneumonia. Vaccination protects those most at risk.
Everything you need to know about the chickenpox vaccination.
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