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Varicella vaccine, also known as chickenpox vaccine, is a vaccine that protects against chickenpox. [9] One dose of vaccine prevents 95% of moderate disease and 100% of severe disease. [ 10 ] Two doses of vaccine are more effective than one. [ 10 ]
Most people who are vaccinated will not develop chickenpox. The vaccine also prevents almost all severe cases of the disease. About 25–30% of the people who develop chickenpox after vaccination will experience a case that is as severe as those of unvaccinated people. [42] Side effects of the vaccine can include:
The chicken pox vaccine became available in the U.S. in 1995 and, since then, cases of the virus in the U.S. have plummeted. But chicken pox still emerges from time to time. Montana public health ...
Chickenpox, also known as varicella (/ ˌ v ɛ r ə ˈ s ɛ l ə / VER-ə-SEL-ə), is a highly contagious disease caused by varicella zoster virus (VZV), a member of the herpesvirus family. [ 3 ] [ 7 ] [ 5 ] The disease results in a characteristic skin rash that forms small, itchy blisters , which eventually scab over. [ 1 ]
The chickenpox vaccination program has also saved the U.S. about $1 billion per year in medical costs and lost work due to parents having to stay home with sick children, according to CDC estimates.
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The varicella vaccine is 85% effective at preventing varicella (chickenpox) infection. [9] However, 75% of individuals that are diagnosed with breakthrough varicella exhibit milder symptoms than individuals that are not vaccinated. [5] These individuals with mild varicella have low fevers, fewer than 50 lesions on their skin, and a ...
8th grade students are now required to get two doses of vaccine for varicella or chickenpox. A child with a positive history of the disease is considered immune and exempt from the requirement ...