The authors report a case of chickenpox (varicella) in an adult, complicated by acute respiratory distress syndrome and resulting in death.

Acute and extremely contagious, varicella (chickenpox) is caused by the varicella-zoster virus (VZV), a member of herpes family. In Hyderabad's urban rural areas, chickenpox incidences were steadily increased in month Jan-Feb 2023, just as other regions nation. According to official records, state-run Fever Hospital has received between 10 12 cases each day, while Niloufer had seen 20 25 per da...

to an affected household member. In healthy children, varicella usually does not cause serious complications. However, immunocompromised children and otherwise healthy adults are at increased risk for life-threatening complications of varicella such as pneumonia, encephalitis, and disseminated infection. Although <10% of all cases of varicella occur in adults, this age group accounts for 25-30%...

Two national surveys were conducted to evaluate the status of varicella case-based surveillance and outbreak response. Although progress toward national surveillance has been significant, a large number of jurisdictions are still without case-based surveillance. For jurisdictions beginning case-based surveillance with limited resources, a staged approach is recommended. The national outbreak su...

BACKGROUND The reported cases with varicella have not decreased and outbreaks of varicella among vaccinated children continue to be reported 9 years after the public vaccination program in Taipei. We investigated an outbreak to determine varicella vaccine coverage and effectiveness. METHODS An outbreak occurred in an elementary school which located in southern Taipei from April 2007 through M...

AIM Varicella is a highly contagious disease. In Slovakia, 15,000-30,000 cases are reported annually. However, vaccination against varicella is not widely used in Slovakia. The aim of this paper is to predict the influence of vaccination administrated in different ages on the disease occurrence in different age groups. METHODS Deterministic, age-stratified SIR (susceptible-infected-recovered)...

BACKGROUND Varicella vaccine currently is recommended for children between 12 and 18 months of age. However, rates of breakthrough varicella have been reported to be higher among children vaccinated before 14 or 15 months of age and to increase with time since vaccination. METHODS An ongoing study at the Northern California Kaiser Permanente Medical Care Program is evaluating vaccine efficacy...

In a search of the literature from 1966 to 2000, a systematic review identified 24 randomized controlled trials and 18 cohort studies of varicella vaccination. (3) In children aged 10 months to 14 years, 1 randomized controlled trial found protective efficacy of 100% over 9 months and 98% over 7 years. (4) A second trial showed efficacy of 72% over 29 months. (5) Cohort studies of children repo...

OBJECTIVE To estimate the basic reproductive rate of a chickenpox outbreak, to apply the stochastic threshold theorem to estimate the probability of an outbreak occurrence and to identify preventive measures. METHODS The study was carried out in a daycare center comprising 16 children, 13 susceptible, one infected and two children with acquired immunity by previous disease. A stochastic susce...