Are there 1 or 2 vaccines for chicken pox?

There are two vaccines for chickenpox: Varivax and ProQuad. Varivax is a single-dose vaccine that is given to children between the ages of 1 and 12. ProQuad is a combination vaccine that protects against chickenpox, measles, mumps, and rubella (MMR). It is given to children between the ages of 1 and 6. Both vaccines are very safe and effective.