Two doses of varicella vaccine or reliable history of disease. If a child has had chickenpox, the vaccine is not required, but written physician confirmation that the child has had the disease must be provided. A blood test to confirm immunity is also acceptable.
One dose of MCV4 is required for students entering 7th grade. Two doses of MCV4 are required for students entering 12th grade. If the first dose of MCV4 was administered on or after the 16th birthday, a second dose is not required.