Anaphylactic/anaphylactoid reaction might occur. Defer vaccination in the presence of acute illness eg, fever >38°C. Reye's syndrome. Avoid close association w/ high-risk individuals eg, immunocompromised, pregnant women & newborn infants of mothers w/o documented history of chickenpox or lab evidence of prior infection for up to 6 wk following vaccination. Provide adequate treatment provisions including epinephrine inj (1:1000) for immediate use. Use w/in min interval of 3-11 mth after blood or plasma transfusion or Ig or varicella-zoster Ig administration. Avoid use of salicylates for 6 wk post-vaccination. Not to be given w/ Ig including varicella-zoster Ig concomitantly or 2 mth thereafter. Avoid pregnancy for 3 mth following vaccination. Not to be used during pregnancy. Nursing mothers. Not recommended in infant <12 mth. Not to be used in adults including elderly.