When, how, why and whom for there will be an "after" Covid-19?

The announced, but unpredicted, radical and global experience of the Covid-19 pandemia has revealed the degree of ignorance, fragmentation, inadequacy of the national and international knowledge and strategies of intervention and, even more substantially, of coordination across all the critical areas of prevention and care. The importance of the nursing component of the organisation and of the technical and cultural aspects of health care delivery and accessibility has been underlined as a protagonist of the resistance and resilience during the worst period of the emergency, and should be specifically involved in this renewal, where a profound modification of the interactions, hierarchies, roles of various professions is required. A long term, widespread, flexible experimentation of country specific and international solutions must be envisaged and timely activated. The 'grammar' and the major concrete characteristics of the methodology which could be usefully adopted to guarantee the feasibility and effectiveness of this 'systemic' experimentation are proposed and exemplified.