Crombet (PhD,2004) is a Medical Doctor and Immunology Specialist (1997). Since 2009 she has been Medical Director of the Center of Molecular Immunology of Havana. She is Member of the Cuban Academy of Sciences; Senior Faculty of the Superior Institute of Medical Sciences of Havana; Member of the Board of Directors of Innovative Immunotherapy Alliance, a joint venture between US and Cuba; Member of the Cuban and Latin-American Societies of Immunology; Member of the Cuban and American Societies of Oncology. She has published more than 100 papers and participated in more than 200 international congresses as speaker. Crombet has received several times the annual National Award of the Cuban Academy of Sciences, the Technological Innovation Award of the Cuban Ministry of Science, and the TWAS Prize for Young Scientists in Developing Countries (2007). Crombet's main area of expertise is cancer immunotherapy and her work has contributed to the registration in Cuba and abroad of two cancer vaccines and two monoclonal antibodies for several epithelial tumors, autoimmune diseases and COVID-19. She is member of the international panel of experts on COVID-19 of the InterAcademy Partnership.

Guillen is currently Biomedical Research Director at the Center for Genetic Engineering and Biotechnology (CIGB) in Havana. He received his Bachelor in Science degree in Chemistry and his Master in Chemistry in 1986 in Odessa I.I. Mechnikov National University, and his PhD degree in Biological Sciences in 1995 from Havana University. He joined the CIGB in 1986. For more than 25 years, he was supervisor of several projects related to prophylactic and therapeutic vaccine developments on hepatitis, dengue, meningitis, pertussis, cancer and COVID as well as drug development against infectious diseases, cancer, cardio protection, neuro-protection and wound healing. Guillen is a Senior Researcher at CIGB, Full Professor at the Havana University and Latino American School of Medicine, Distinguished Professor-at-Large at the University of Science and Technology of China and has been a Member of the Cuban Academy of Science since 2012. He is also member of several scientific societies, editorial boards and advisory committees. He has published 226 scientific papers and holds 56 patents. He has been honored with 52 National Awards for Scientific Results from the Cuban Academy of Sciences.