In an editorial, the newspaper O Globo called Mr. Bolsonaro’s latest statement “irresponsible marketing” for a drug that can have dangerous side effects in patients with heart conditions.
His stance is a lonely one among major world leaders. Even President Trump, who for months enthusiastically promoted hydroxychloroquine, took it for only two weeks and rarely mentions it any more.
With symptoms that appear mild so far, Mr. Bolsonaro showed no sign that testing positive for the virus had made him any less dismissive of the merits of social distancing, mask wearing and other measures that have enabled other countries to rein in transmission and save lives.
Despite his apparent confidence, Mr. Bolsonaro is not out of danger. It often takes about a week after symptoms emerge for Covid-19 cases that become serious to shift for the worse.
Nelson Teich, a doctor who stepped down as health minister in mid-May, less than a month into the job, warned in a column published Wednesday that the country is in dire need of a data-driven strategy to reopen the economy while mitigating risks.
“We’re in a race against time,” he wrote in an article published in O Globo under the headline “It’s Almost like Waiting for a Miracle.”
“The longer the quarantine lasts,” he added, “the harder it will be to manage the consequences of the impact of Covid-19 in the health sector, the economy and people’s behavior.”