WHO Expert Committee on Biological Standardization: Sixty-fifth Report

This report presents the recommendations of a WHO Expert Committee commissioned to coordinate activities leading to the adoption of international recommendations for the production and control of vaccines and other biological substances and the establishment of international biological reference materials. Following a brief introduction the report summarizes a number of general issues brought to the attention of the Committee. The next part of the report of particular relevance to manufacturers and national regulatory authorities outlines the discussions held on the development and adoption of new and revised WHO Recommendations Guidelines and guidance documents. Following these discussions a WHO guidance document on the Scientific principles for regulatory risk evaluation on finding an adventitious agent in a marketed vaccine was adopted along with WHO Guidelines on procedures and data requirements for changes to approved vaccines and revised WHO Recommendations to assure the quality safety and efficacy of poliomyelitis vaccines (inactivated).