Brazil expects to sign a new deal next week with Pfizer Inc for 100 million more COVID-19 vaccine doses.<br />'' <br />'' Rodrigo Cruz, executive secretary at the Brazilian Health Ministry, said that the new deal would double the US drugmaker's delivery to the Latin American country this year. He added that the contract has been agreed and just needs to be signed. Earlier this week, Brazilian Health Minister Marcelo Queiroga had said that 35 million of vaccine shots are due to be delivered in October.<br />''  <br />