Vaccines should be a global public good, and for this, global mechanisms should be established to prevent market disputes and “vaccine nationalism”. In this scenario, Latin America and the Caribbean have a new opportunity to join forces to face covid-19 together, through common development around the production, purchase and distribution of mobile phone number listvaccines, in addition to sanitary and epidemiological surveillance. . Considering the post-pandemic scenario, cooperation in health should also be a fundamental tool to combat the increase in poverty and inequity in the region, which have grown during this period. The accumulated experience of Latin America in the use of cooperation strategies to reduce inequalities and increase development, The concepts of "epidemiological shield" and "sanitary mobile phone number list sovereignty" left by the Unasur process are revealing in the construction of articulated Latin American regionalism, in which cooperation and integration result in an added value that strengthens the region and has a favorable impact within each Latin American nation, strengthening the respective social and health policies. In this sense, the creation of an "epidemiological shield" with a South-South approach could become a regional and interregional institutional tool aimed mobile phone number listat providing adequate epidemiological responses to epidemics and priority diseases with political support. It has become clear that no country can tackle this problem alone and, for this, cooperation is essential. The pandemic put the international cooperation system to the test as a whole and has made visible the urgent need to recreate the instances and structures in this area, in order to achieve more supportive modes of relationship. In South America, the triumph of the Frente de Todos (Frente de Todos) in Argentina and, more recently, of the Movement for Socialism (MAS) in Bolivia,