It has become increasingly clear that Brazil’s far-right President Jair Bolsonaro has lost the vaccine battle. After health regulators approved the temporary use of two coronavirus immunizers on Sunday afternoon — which was followed by the immediate start of vaccination in the state of São Paulo — Mr. Bolsonaro fell silent.
Indeed, after what was a momentous moment for the country in its fight against the Covid-19 pandemic, Mr. Bolsonaro’s first utterance on social media came almost 24 hours later and was completely unrelated to Brazil’s first coronavirus vaccinations. Instead, he tweeted about the opening of a highway flyover...