Although varicella is usually a mild and self-limited disease, complications can occur. In
1998, the World Health Organization recommended varicella vaccination for countries …

Introduction: Varicella, although a frequently benign childhood disease, nevertheless
represents a considerable health burden. WHO recommends including varicella vaccines in …

Modern infectious disease epidemiology has a strong history of using mathematics both for
prediction and to gain a deeper understanding. However the study of infectious diseases is …

Accounting for uncertainty is now a standard part of decision-analytic modeling and is
recommended by many health technology agencies and published guidelines. However, the …

Background Patterns of person-to-person contacts relevant for infectious diseases
transmission are still poorly quantified in Sub-Saharan Africa (SSA), where socio …

Varicella-zoster virus (VZV) causes chickenpox and may subsequently reactivate to cause
herpes zoster later in life. The exogenous boosting hypothesis states that re-exposure to …

Background Herpes zoster (HZ) is caused by a reactivation of the varicella-zoster-virus
(VZV) and mainly affects individuals aged≥ 50 years. Vaccines have been licensed or are …

In a cooperative agreement starting January 1995, prior to the FDA's licensure of the
varicella vaccine on March 17, the Centers for Disease Control and Prevention (CDC) …

Variability in the risk of transmission for respiratory pathogens can result from several
factors, including the intrinsic properties of the pathogen, the immune state of the host and …

Introduction: Policy-makers in many countries have been wary of introducing varicella
vaccination programs because of concerns that reduced exposures to varicella-zoster virus …