Table 5.

Evidence of immunity to varicella in adults includes any of the following

Documentation of 2 doses of varicella vaccine at least 4 wk apart

United States-born before 1980 except health-care personnel and pregnant women

History of varicella based on diagnosis or verification of varicella disease by a health-care provider

History of herpes zoster based on diagnosis or verification of herpes zoster disease by a health-care provider

Laboratory evidence of immunity or laboratory confirmation of disease