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The varicella vaccine has been available in the Taiwan market since July 1997. Beginning 1998–1999, Taipei City and Taichung City/County as the early launch areas included the varicella vaccine in their free pediatric vaccination programs. By contrast, the national free vaccination program was not implemented until 2004. We aim to investigate the changing epidemiology of varicella incidence through...
Although varicella is commonly regarded as a mild childhood disease, complications may occur and frequently require hospitalization. The aim of this study was to establish the type and frequency of varicella complications among hospitalized paediatric patients over a 4.5-year period. This analysis included the medical charts of 306 patients admitted to the Infectious Disease Unit, Children Hospital...
Kinetics of maternal rubella and varicella antibodies in 213 mother–infant pairs are described in a longitudinal study in Belgium.Blood samples are taken at 7 time points (week 36 of pregnancy, birth (cord), 1, 3, 6, 9, and 12 months), and analyzed for anti-rubella IgG and anti-varicella IgG by enzyme linked immunosorbent assay (ELISA). A generalized exponential model is used to analyse maternal antibody...
We performed this nationwide retrospective investigation among the recipients of varicella vaccine to evaluate the breakthrough varicella infection rate, factors associated with breakthrough infection and the vaccine effectiveness. The recipients of these vaccinations were identified through Taiwan's National Immunization Information System and data on breakthrough infections among these recipients...
A child referred to Infectious Disease Unit for varicella complicated by pneumonia with pleural effusion. Due to not improvement, laboratory search was extended to uncommon pathogens, revealing Nocardia transvalensis infection.It is likely that varicella induced immunodepression, facilitating opportunistic infection in an otherwise healthy and immunocompetent child. To our knowledge, our report is...
To compare seroprevalence (serum IgG titre) with self-reported history of varicella zoster virus (VZV) infection among pregnant women in Hong Kong.Pregnant women undergoing first trimester Down screening over a 3-months period were recruited for the study.Positive immunity was found in 477 (95.4%) of the 500 recruited women, and those with positive, negative, or uncertain history of infection had...
In 2005, universal varicella vaccination was introduced in the Veneto region, Italy. We examined trends in varicella incidence and hospitalization rates before and after vaccine introduction, and applied statistical models to assess vaccine effectiveness. Varicella incidence rates for 2000–2008 were calculated from the mandatory regional surveillance data and from a special surveillance system based...
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