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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 ]
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 ]
On the same day, a 42-year-old man who came back from India through Benapole Border Crossing on 3 June, was sent to Jashore Hospital after he showed pox like symptoms. [66] Although, the district civil surgeon said on the next day that he was very probably infected with chickenpox. [citation needed] On 12 June, the case in Chuandanga was ...
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 ...
A reemergence of the disease in the DRC in 1996 also saw a large number of reported but not all laboratory confirmed cases, with a high transmission rate and lower fatality rate; leading experts to believe a significant number may have actually been chicken pox. [9] [12] Some likely had both mpox and chickenpox at the same time. [5]
The mutation rate in poxvirus genomes has been estimated to be 0.9–1.2 x 10 −6 substitutions per site per year. [20] A second estimate puts this rate at 0.5–7 × 10 −6 nucleotide substitutions per site per year. [21] A third estimate places the rate at 4–6 × 10 −6. [22]
A zoster vaccine is a vaccine that reduces the incidence of herpes zoster (shingles), a disease caused by reactivation of the varicella zoster virus, which is also responsible for chickenpox. [8] Shingles provokes a painful rash with blisters, and can be followed by chronic pain (postherpetic neuralgia), as well as other complications.
Some of the differences in the two trees are attributed to the procedure of passage in producing vaccinia strains. The Modified vaccinia Ankara strain in this regard has much gene loss related to in vitro passage, and horsepox being a vaccinia strain found in a natural outbreak has less. [6]