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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 ]
Chickenpox is generally considered a mostly mild disease without lasting effects, said Dr. Jason Zucker, an infectious disease expert and an assistant professor of medicine at the Columbia ...
The short- and long-term pain caused by shingles outbreaks originates from inflammation of affected nerves due to the widespread growth of the virus in those areas. [47] As with chickenpox and other forms of alpha-herpesvirus infection, direct contact with an active rash can spread the virus to a person who lacks immunity to it.
Shingles is a viral infection—caused by the same virus as chickenpox—that brings a painful rash or skin blisters, ... Vaccines can prevent severe illness and their long-term side effects.” ...
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 ...
Postherpetic neuralgia is the most common long-term complication of herpes zoster, and occurs in approximately 20% of patients with shingles. [2] Risk factors for PHN include older age, severe prodrome or rash, severe acute zoster pain, ophthalmic involvement, immunosuppression, and chronic conditions such as diabetes mellitus and lupus. [1]
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