Duration of immunity achieved by veterinary vaccines - Scientific guideline

This guideline provides information on the points to be considered in the design and conduct of studies in support of the duration of immunity of immunological veterinary medicinal products (IVMPs). It also outlines the data requirements in support of duration of immunity of IVMPs after basic vaccination and after re-vaccination. Requirements for vaccines inducing active or passive immunity are also indicated.

Keywords: Duration of protection, veterinary vaccines

Current version

Guideline on duration of immunity achieved by veterinary vaccines

Adopted Reference Number: EMA/CVMP/IWP/224985/2025 Legal effective date: 01/04/2026 Summary:

This guideline replaces the Note for guidance: Duration of protection achieved by veterinary vaccines (EMEA/CVMP/682/99-FINAL).

Document history

Note for guidance: Duration of protection achieved by veterinary vaccines

Adopted Reference Number: EMEA/CVMP/682/99-FINAL Legal effective date: 01/05/2001