Report of the international conference on next generation sequencing for adventitious virus detection in biologicals.

A fundamental aspect of biological product safety is to assure absence of adventitious agents in the final product. Next-generation or high-throughput sequencing (NGS/HTS) has recently demonstrated detection of viruses that were previously missed using the recommended routine assays for adventitious agent testing of biological products. This meeting was co-organized by the International Alliance for Biological Standardization (IABS) and the U.S. Food and Drug Administration (FDA) to assess the current status and discuss the readiness of NGS for adventitious virus detection in biologics. The presentations included efforts for standardization, case studies on applications in biologics, comparison with routine virus detection assays, and current regulatory thinking. Participants identified the need for standard reference reagents, well-annotated databases, large data storage and transfer capacity, personnel with relevant expertise, particularly in bioinformatics; and harmonization of international regulations for testing biologic products and reagents used for their manufacturing. We hope this meeting summary will be of value to regulators and industry for considerations of NGS applications for adventitious virus detection in biologics.

Mode of action of adjuvants: implications for vaccine safety and design.

For decades, the search for new vaccine adjuvants has been largely empirical. A series of new adjuvants and related formulations are now emerging that are acting through identified immunological mechanisms. Understanding adjuvant mechanism of action is crucial for vaccine design, since this allows for directing immune responses towards efficacious disease-specific effector mechanisms and appropriate memory. It is also of great importance to build new paradigms for assessing adjuvant safety at development stages and at regulatory level. This report reflects the conclusions of a group of scientists from academia, regulatory agencies and industry who attended a conference, organized by the International Association for Biologicals (IABS), on the mode of action of adjuvants on 29-30 April 2010 in Bethesda, Maryland, USA, particularly focusing on how understanding adjuvants mode of action can impact on the assessment of vaccine safety and help to develop target-specific vaccines. More information on the conference output can be found on the IABS website, http://www.iabs.org/.