Spain has been hard-hit by the pandemic, recording nearly 60,000 deaths from over 2.8 million cases so far, including 350 of the strain detected in Britain.
The submission, the first of its kind in Brazil, was made by the federally funded Fiocruz Institute, which will manufacture the British vaccine locally.
Mexico City has been in a state of maximum alert since mid-December, with more than 90 percent of hospital beds full due to soaring infections. Non-essential activities have been suspended in the capital.
The federally-funded Fiocruz biomedical center in Rio de Janeiro is still awaiting its first shipment of ingredients for AstraZeneca's vaccine, pending Chinese export approval.
In a statement, the central bank said the publication of the Copom minutes will remain 8 a.m. on the Tuesday of the week following the policy decision and statement.
Anvisa, which has stipulated an efficacy rate of at least 50% for vaccines in the pandemic, has already pressed Butantan for more details of its study, after it filed for emergency use authorization on Friday.
The rise in deaths in Brazil comes amid growing pressure to speed up the vaccine roll out, which is lagging regional peers. Mexico, Chile and Argentina have already begun immunizations.
"The situation is serious," said Perfeito, who noted that "the central problem is not the lack of money, but the lack of a clear plan" in a country that still does not have a start date for vaccinations against Covid-19.
Airlines are seeking at least 14 days before new requirements take effect and "consideration of inadequate testing and results availability in specific countries rather than a blanket worldwide requirement is also needed," the letter said.
The move triggered more buying in a futures market already on edge due to crop-threatening South American weather amid robust demand and tightening global corn and soybean supplies.
Football superstar Neymar meanwhile tried to douse a firestorm of controversy over reports he organized a week-long party for 500 revelers at his mansion outside Rio.
Britain became the first country in the world to give full regulatory approval to the coronavirus vaccine developed by Oxford University and AstraZeneca.