The Ministry of Health announced that next week inoculation with the bivalent vaccine against COVID-19. The director of the Millennium Institute of Immunology and Immunotherapy, Dr. Alexis Kalergiswho claimed to CNN Chile that “the first thing is to highlight the effect that vaccination has had as one of the tools to advance in the control of the pandemic (…) It is essential that science advance in the development of vaccines that include variants in their formulation. that circulate today in our country and in the world ”.