RIO DE JANEIRO, Brazil (AFP) — More than 80 percent of Covid-19 patients who have to be intubated in Brazil have died since the start of the second wave of infections ravaging the country, according to researchers. The mortality rate since February 15 — 83.5 percent — is far higher than in countries such as Mexico, Britain, Germany or Italy, highlighting how the South American country’s hospitals are struggling to deal with a surge of […]