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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] It usually starts on the ...
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 ]
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 ...
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[13] [16] In the UK, chickenpox vaccinations are not routine, and around 25 people die a year from the disease, with 80% of victims being adults, in the late 1990s. [17] The chickenpox vaccine is now recommended by health officials, citing vastly superior safety when compared with infection. [8] [18]
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 ...
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Lending support to this hypothesis that contact with children with chickenpox boosts adult cell-mediated immunity to help postpone or suppress shingles, a study by Thomas et al. reported that adults in households with children had lower rates of shingles than households without children. [109]