Eduardo pazeullo, Brazil’s acting health minister, said on Thursday that Brazil needed more information and negotiations before committing to buy Russia’s new crown vaccine, which is still at a very early stage. On Wednesday, a Brazilian Technology Institute, shortly after signing a memorandum of understanding with Moscow, said it expected to produce Russian vaccines in the second half of 2021. Pazeulo said the Russian vaccine faces scientific experts’ suspicion due to the lack of test results, but if the vaccine is effective, “we have to participate.”. Pazeulo said the most promising vaccine is currently being developed by Oxford University researchers in collaboration with AstraZeneca. AstraZeneca has agreed to sell tens of millions of doses of potential vaccines to the Brazilian government and has arranged for the transfer of technology so that Brazil can eventually start domestic production at the fiocruz Institute in Rio de Janeiro. Production of the new vaccine will start in mid-2021, but experts warn that it may take at least twice as long to actually go into production, fiocruz said.