The present guidance for poultry (Gallus gallus) was developed by the Working Group established by the Veterinary International Cooperation on Harmonization (VICH), Anthelmintic Guidances. It should be read in conjunction with the VICH Effectiveness of Anthelmintic: General Recommendations (EAGR) which should be referred to for discussion of broad aspects for providing pivotal data to demonstrate product anthelmintic effectiveness. The present document is structured similarly to the EAGR with the aim of simplicity for readers comparing both documents.

This guidance for poultry is part of this EAGR and the aim is (1) to be more specific for certain specific issues for poultry not discussed in the EAGR; (2) to highlight differences with the EAGR on effectiveness data recommendations and (3) to give explanations for disparities with the EAGR. Although technical procedures to be followed are not the aim of this guidance, some details are given as until now the pertinent procedures have not been described elsewhere.

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