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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 ]
Chicken pox is an illness caused by the varicella zoster virus, according to the Centers for Disease Control and Prevention. It causes a distinct itchy, blister-like rash that usually shows up on ...
1759 North America measles outbreak 1759 North America Measles: Unknown [109] 1760 Charleston smallpox epidemic 1760 Charleston, British North America: Smallpox: 730–940 [110] [111] 1762 Havana yellow fever epidemic 1762 Havana, Cuba: Yellow fever: 8,000 [106] 1763 Pittsburgh area smallpox outbreak 1763 North America, present-day Pittsburgh ...
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 ...
Pox parties, also known as flu parties, are social activities in which children are deliberately exposed to infectious diseases such as chickenpox.Such parties originated to "get it over with" before vaccines were available for a particular illness or because childhood infection might be less severe than infection during adulthood, according to proponents.
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2012 outbreak of Salmonella; 2012–2013 flu season; 2014 enterovirus D68 outbreak; 2015 Bronx Legionnaires' disease outbreaks; 2015 United States E. coli outbreak; 2015 United States H5N2 outbreak; 2016 United States Elizabethkingia outbreak; 2017–2018 United States flu season; 2018 United States adenovirus outbreak; 2019 New York measles ...
The virus comes in two types: Clade 1 causes more severe illness and death and is endemic to Central Africa; and Clade 2 is the type that caused the global outbreak that started in 2022, is less ...