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Chickenpox (Frequently Asked Questions)
Chickenpox is an infectious disease characterised by fever and a blister-like rash caused by the varicella-zoster virus (VZV). A first infection with VZV causes chickenpox.
Varicella zoster virus is airborne and highly contagious. Approximately 90% of close contacts who are non-immune will catch chickenpox after exposure to persons with the disease. A person with varicella is contagious from 1-2 days before rash onset until the sores have crusted.
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