This relationship between humans and the microbial world and its intrinsic health-disease effect has been highlighted in the global pandemic caused by Covid-19. It also have manifested the vulnerabilities of the population and the weaknesses of the systems of Health. However, far from overcoming the biomedical vision, the inappropriate use of medicines, speculation and inequity in access to health services, they highlighted humanity's fear of infections. In this document we invite you to reflect on these problems and how to overcome them from the care of the most vulnerable and solidarity. 2020.