Documenting Immunization

An immunization record should be established for each OHCP at the time of initial employment.4,6,7 The most reliable way to determine immunity is to obtain documentation of:

  1. physician-diagnosed infection or
  2. laboratory evidence of immunity, or
  3. age-appropriate vaccination.

If there is any doubt as to the immune status of an OHCP, it is best to assume that the person is non-immunized. Following each subsequent immunization encounter, the record should be updated. The information recorded should include the type of vaccine; the dose, route, and site of administration; the name of the person who gave the vaccine; the date the vaccine was given; the manufacturer and lot number; and the date the next dose is due.