Varicella Vaccine in an adult

Dear Ask The Doctor: When I was 9 years old, I received the Varicella vaccine (one dose). I am now 23 years old, and I recently had a baby. While I was pregnant I found out my pediatrician never gave me the second dose and I am NOT immune to chicken pox. So after I had the baby, I went in to get the varicella vaccine. My question is do I need ANOTHER dose of the Varicella vaccine (since I heard adults need two doses 8 weeks apart) or is the one I received when I was 9, and the one I just receieved sufficient?

Dear Candice: Varicella vaccine if received before the age of 12 years provide maximum immunity with one dose and the other dose is not required, unlike in older children who may require 2 doses of this vaccine to achieve the same maximum immunity. Also this is not recommended during pregnancy since it is a live attenuated vaccine that may result in possible harmful effects on fetal development. However you may take a second dose if you do not any evidence of immunity (had the disease or the vaccine), or in case of high risk or exposure to close contact.