Anti-government protesters took to the streets in more than a score of cities across Brazil on Saturday as the nation's confirmed death toll from COVID-19 soared past half a million — a tragedy many critics blame on President Jair Bolsonaro's attempt to minimize the disease.

Thousands gathered in downtown Rio de Janeiro waving flags with slogans such as "Get out Bolsonaro. Government of hunger and unemployment."

"Brazil is experiencing a great setback. The country was an exemplary country for vaccination in the world. We have widely recognized institutions, but today we are in a sad situation ", said Isabela Gouljor, a 20-year-old student who joined the protest in Rio.'

Demonstrators protest against Brazilian President Jair Bolsonaro's handling of the coronavirus pandemic and economic policies protesters say harm the interests of the poor and working class on Paulista Avenue, in Sao Paulo, Brazil, Saturday, June 19, 2021. Brazil's COVID-19 death toll is expected to surpass the milestone of 500,000 deaths on Saturday night. (AP Photo/Marcelo Chello)

Demonstrators protest against Brazilian President Jair Bolsonaro's handling of the coronavirus pandemic and economic policies protesters say harm the interests of the poor and working class on Paulista Avenue, in Sao Paulo, Brazil, Saturday, June 19, 2021. Brazil's COVID-19 death toll is expected to surpass the milestone of 500,000 deaths on Saturday night. (AP Photo/Marcelo Chello)

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Other marchers hoisted posters reading: "500 thousand deaths. It’s his fault," alluding to Bolsonaro.

Similar marches took place in at least 22 or Brazil's 26 states, as well as in the Federal District, Brasilia. They were promoted by left-wing opposition parties who have been heartened by Bolsonaro's declining poll ratings with next year's presidential race looming.

"Get out Bolsonaro, genocidal," yelled Rio demonstrators, some of them wearing T-shirts or masks with the image of former leftist President Luiz Inacio Lula da Silva — who leads Bolsonaro in some polls.

In São Paulo, protesters dropped red balloons as a tribute to the victims of the virus.

A woman wearing a protective face mask holds a sign with a message that reads in Portuguese; "500,000, government of death" during a protest against Brazilian President Jair Bolsonaro's handling of the coronavirus pandemic and economic policies they say harm the interests of the poor and working class, in Rio de Janeiro, Brazil, Saturday, June 19, 2021. Brazil is approaching an official COVID-19 death toll of 500,000 — second-highest in the world. (AP Photo/Bruna Prado)

A woman wearing a protective face mask holds a sign with a message that reads in Portuguese; "500,000, government of death" during a protest against Brazilian President Jair Bolsonaro's handling of the coronavirus pandemic and economic policies they say harm the interests of the poor and working class, in Rio de Janeiro, Brazil, Saturday, June 19, 2021. Brazil is approaching an official COVID-19 death toll of 500,000 — second-highest in the world. (AP Photo/Bruna Prado)

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Bolsonaro's supporters have taken more often to the streets over the past month, in large part because many agree with his dismissal of restrictions meant to stifle the coronavirus and anger that lockdown measures have hurt businesses.

Critics say such messages, as well as Bolsonaro's promotion of disproven treatments such as hydroxychloroquine, have contributed to the soaring death toll and a sluggish vaccine campaign that has fully inoculated less than 12% of the population. The country of some 213 million people is registering nearly 100,000 new infections and 2,000 deaths a day.

"For the leftists, putting their followers in the streets is a way of wearing Bolsonaro down for the election," said Leandro Consentino, a political science professor at Insper, a university in Sao Paulo. "But at the same, time they are contradicting themselves and losing the discourse of maintaining health care, because they are causing the same agglomerations as Bolsonaro."

Brazilian President Jair Bolsonaro attends a graduation ceremony at the Naval Academy, in Rio de Janeiro, Brazil, Saturday, June 19, 2021, amid the COVID-19 pandemic. People gathered across the country Saturday, to protest Bolsonaro's handling of the pandemic and economic policies protesters say harm the interests of the poor and working class. (AP Photo/Silvia Izquierdo)

Brazilian President Jair Bolsonaro attends a graduation ceremony at the Naval Academy, in Rio de Janeiro, Brazil, Saturday, June 19, 2021, amid the COVID-19 pandemic. People gathered across the country Saturday, to protest Bolsonaro's handling of the pandemic and economic policies protesters say harm the interests of the poor and working class. (AP Photo/Silvia Izquierdo)

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Saturday's marches came a week after Bolsonaro led a massive motorcycle parade of supporters in Sao Paulo, though his allies and foes differ dramatically on the size of that event.

"Bolsonaro needs to show that he maintains significant support to give a message of strength to those who are investigating the actions of his government in Congress", Consentino said.