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The purpose of this study was to determine whether infection with varicella is causal for arterial ischemic stroke (AIS) in children. In young children with AIS, there is a 3-fold increase in preceding varicella infection compared with publ ished population rates, and varicella-associated AIS accounts for nearly one third of childhood AIS. Varicella-associated AIS has characteristic features, including a 2-fold increase in recurrent AIS and transient ischemic attacks. Varicella is an impor tant risk factor for childhood AIS. |
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