From Cuba to Brazil, Covid stirs up a wave of volatility

For Filipe da Silva, hitting the streets was about staying alive. “Unfortunately, Brazil elected a murderer,” the 28-year-old declared as he and thousands of fellow protesters streamed through the seaside city of Fortaleza last month to decry the president’s bungling of a Covid epidemic that has killed more than half a million people.

For Eduardo Ramos, joining the largest