• An individual with chickenpox (varicella) is infectious from 2 days prior to the appearance of lesions to 5 days after or until the lesions are dry and crusted (whichever is longer).
• Determine true diagnosis in index case / call infection control
• Susceptible contacts will require VZIG.  VZIG needs to be given within 72 hours of exposure and no later than 96 hours.  See VZIG information.
• Note that VZIG costs $360 per vial and must be approved by the Medical Officer or the "on call" transfusion specialist.
• Exposed individuals that are non-immune become potentially infectious from 8 days following initial contact until 21 days following the last contact with the index case.  See Chickenpox information.
• For isolation see Chickenpox - Infectious precautions.

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