Subcutaneous Active immunisation against varicella infection Child: >12yr: 2 doses of 0.5 ml each. 2nd dose to be given at least 4 weeks later after the 1st dose. Child: 1-12 yr: 0.5 ml, as a single dose. If necessary, a 2nd dose is to be given at least 3 mth later. Postexposure vaccination Child: >12 yr: Given within 3-5 days post exposure, a single dose of 0.5 ml. 2nd dose to be given 4 wk after the 1st dose. Child: 1-12 yr: Given within 3-5 days post exposure, a single dose of 0.5 ml. If necessary, a 2nd dose is to be given at least 3 mth later. Varicella Immunization Indicated for routine immunization (ACIP guidelines) Minimum age: 12 months Routine vaccination 2 dose series: 0.5 mL SC 1st dose: 12-15 months 2nd dose: 4-6 years; may be administered before age 4 yr, provided at least 3 months have elapsed since the first dose