For the first time, a majority of Brazilians support impeaching President Jair Bolsonaro, according to a poll released on Saturday, as serious graft allegations related to vaccine procurement hit the right-wing leader's already battered image.

According to the survey by Datafolha, 54 percent of Brazilians support a proposed move by the country's lower house to open impeachment proceedings against Bolsonaro, while 42 percent oppose it. In the last Datafolha survey on the issue, released in May, supporters and opponents of impeachment were essentially tied...