Friedrich Engels memorably describes the poor sanitary condition of working-class neighbourhoods in mid-19 th century England. At a certain point, typhus and cholera epidemics began to threaten bourgeois neighbourhoods, and only then was the government forced to take remedial action. Well, with the pandemic of the century , it is as if Engels had entered the 21 st century, and the same contradiction was laid bare for the whole world. The Covid-19 catastrophe in India shows an elementary truth: Europe, America and China are completing colossal vaccination plans, but they will never be truly safe if the rest of the world, in Asia, Africa and Latin America, remains at the mercy of the virus and its mutations. And yet, even in the face of the evidence, the contention between powers to take advantage of vaccine diplomacy does not cease. The United States has put forward the promotional idea of suspending the patents of the pharmaceutical giants, perhaps in order to counter the Chinese off