Varicella Serological Status Of Healthcare Workers As A Guide To Whom To Test Or Immunize

Only 1.6% of 1,331 hospital workers were seronegative for varicella-zoster virus (VZV), including 8.7% of those with a negative history and 0.5% of those with a positive history. Seronegativity was inversely related to age but unrelated to job category, exposure at work to VZV, country of origin, race, or gender.