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] …

Nov 10, 2021 · Chickenpox is a childhood disease, and until a couple of decades ago, nearly all children in the United States got it. A vaccine campaign that began in the 1990s has made the …

Aug 4, 2021 · There’s evidence of chickenpox dating back to ancient times, and the earliest known use of the term “chickenpox” dates to 1691 —although it’s not clear how it got this …

Apr 19, 2023 · Chickenpox is an illness caused by the varicella-zoster virus. It brings on an itchy rash with small, fluid-filled blisters. Chickenpox spreads very easily to people who haven't had …

Apr 21, 2023 · Chickenpox has four distinct stages, each has its own set of symptoms. The first stage of chickenpox (incubation) lasts 10 to 21 days. This is when the virus enters the body …

American vaccinologist Maurice Hilleman 's team developed a chickenpox vaccine in the United States in 1981, based on the "Oka strain" of the varicella virus. [16][17][18] The chickenpox …

Chickenpox, also called varicella-zoster, produces a red rash that blisters, then scabs over. It’s very contagious and spreads through bodily fluids and bodily contact. You can prevent …

Learn what breakthrough varicella (chickenpox) looks like in vaccinated people. See the impact of the chickenpox vaccine and findings from the program's first 25 years.

Nov 14, 2023 · The first sign of chickenpox is usually a general feeling of not feeling well. Early-stage chickenpox. Some other symptoms of chickenpox that can happen a few days before …

Typical symptoms that may begin to appear 1 to 2 days before rash include: Kids usually miss 5 to 6 school or childcare days due to chickenpox. The classic sign of chickenpox is a rash that …