Late in February, when the first coronavirus cases were confirmed in Brazil and Argentina, the most affected demographics consisted of high-income families that brought the virus into the country after vacationing in Europe and Asia. As editor Euan Marshall explained at the time, Covid-19 entered Brazil as a disease of the jet-set elite.
But as Brazil tops the mark of 3 million confirmed cases — as well as reaching over 100,000 deaths — and with Argentina posting record numbers of new daily infections, the demographics of the pandemic have dramatically shifted. The contagion curve has spiked in lower-income areas, where...