1. The Walter and Eliza Hall Institute of Medical ResearchParkvilleVictoriaAustralia
2. Department of Medical BiologyParkvilleVictoriaAustralia
3. The Cooperative Research Centre for Vaccine TechnologyParkvilleVictoriaAustralia
4. CSL LimitedParkvilleVictoriaAustralia
5. Research Institute for Microbial Diseases, Osaka UniversityOsakaJapan