alexa Varicella-Zoster Virus Infection | United-states | PDF | PPT| Case Reports | Symptoms | Treatment

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Varicella-Zoster Virus Infection

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  • Varicella-Zoster Virus Infection

    Pathophysiology: Little is known about the route and the source of transmission of the virus. VZV is certainly transmissible through the airborne route and does not require close personal contact. The skin lesions are certainly full of infectious virus particles whilst in contrast, it is almost impossible to isolate virus from the upper respiratory tract. It is possible that aerial transmission originates from symptomless oral lesions.

  • Varicella-Zoster Virus Infection

    Disease statistics: Approximately 11,000 persons with varicella required hospitalization each year. Hospitalization rates were approximately 2 to 3 per 1,000 cases among healthy children and 8 per 1,000 cases among adults. Death occurred in approximately 1 in 60,000 cases. From 1990 through 1996, an average of 103 deaths from varicella were reported each year. Most deaths occur in immunocompetent children and adults. Since 1996, hospitalizations and deaths from varicella have declined more than 70% and 88% respectively.

  • Varicella-Zoster Virus Infection

    Treatment: Several studies indicate that antiviral medications decrease the duration of symptoms and the likelihood of postherpetic neuralgia, especially when initiated within 2 days of the onset of rash. In typical cases that involve individuals who are otherwise healthy, oral acyclovir may be prescribed. An important study by Kubeyinje (1997) suggested that the use of acyclovir in healthy young adults with zoster is not clearly justified, especially in situations of limited economic resources. Other medications, including valacyclovir, penciclovir, and famciclovir, are also available.

  • Varicella-Zoster Virus Infection

    Research: Varicella vaccine can provide protection to susceptible individuals who have already been exposed, as demonstrated in studies in Japan in the 1970s and 1980s. Susceptible family members of index patients with varicella were immunized within 3 days, and their disease was largely prevented. Vaccination was also used successfully to terminate an epidemic of varicella in a shelter for homeless families

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