How Brazil gambled on unproven drugs to fight Covid-19

Brazilian President Jair Bolsonaro has long been a champion of drugs chloroquine and hydroxychloroquine to cure Covid-19, despite multiple studies that show that they are not effective. Now, documents show that his government spent emergency funds on the medicines and continued to produce and distribute them at unprecedented rates throughout 2020 while rejecting at least one offer to purchase a vaccine already in the final stage of trials because the terms were "abusive."