No. The Public Health Service (PHS) recommends that all persons continue to be vaccinated according to current schedules. No evidence exists that cases of vCJD are related to the use of vaccines, and no cases of vCJD have ever been reported in the U.S.

In addition, there is no evidence to date that vaccines have contributed to the cases of vCJD seen in Europe. Nor is there evidence that any vaccines harbor the BSE agent.

As a result, PHS has no preference for using one licensed vaccine product over another based on the source of bovine-derived materials used in vaccine production.