[Study of genetic markers of hepatitis B virus in 204 persons working in hospitals].
In this study we have shown that 20% of the staff of the University Hospital Center at Nancy have at least one genetic marker for hepatitis B virus. We believe that, given this relatively high incidence of infection, members of a hospital staff at high risk for infection should be screened by serologic tests in order to immunize only susceptible individuals. Conversely, in populations with low incidences of infection, immunization without prior serologic tests is preferable as it is less expensive.