Dr E. David G. McIntosh AM is a paediatrician, vaccinologist and infectious disease specialist. He is chair of the ISAC Immunisations and Vaccines Working Group.

He is currently supporting MSD Vaccines in the development of vaccines.

Previously, he worked on pneumococcal, meningococcal, dengue and other vaccines in Wyeth, Novartis and Takeda. He also worked on the antibiotics tigecycline and piperacillin-tazobactam, and the anti-parasitic agent moxidectin. He has worked in Papua New Guinea, the Northern Territory of Australia, New Zealand, The UK, The Netherlands, Russia and Latin America.

Prof. Mario Ramirez is an Associate Professor of Microbiology at the Faculdade de Medicina of Universidade de Lisboa and the Head of the Molecular Microbiology and Infection laboratory of the Instituto de Medicina Molecular João Lobo Antunes, Lisbon, Portugal. 

His research interests have focused on the Streptococcus genus and have included the study of bacterial populations, epidemiology of infections, antimicrobial resistance, novel tools in molecular typing analysis as well as more fundamental aspects of the biology of streptococci. He has also been involved in developing new methods and software for the analysis of microbial typing data and genomic information derived from high throughput sequencing technologies.