Britain’s AstraZeneca said on Monday its vaccine for the novel coronavirus could be around 90% effective without any serious side effects, giving the world another important tool to halt the COVID-19 pandemic. The combined analysis from both dosing regimens resulted in an average efficacy of 70%.
The vaccine developed by Oxford University was 90% effective in preventing COVID-19 when it was administered as a half dose followed by a full dose at least one month apart, according to data from the late-stage trials in Britain and Brazil.
No serious safety events related to the vaccine have been confirmed and it was well tolerated across both dosing regimens, it said.
“This vaccine’s efficacy and safety confirm that it will be highly effective against COVID-19 and will have an immediate impact on this public health emergency,” Pascal Soriot, Astra’s chief executive, said in a statement.
The Serum Institute of India, the world’s largest manufacturer of vaccines by volume, has partnered with AstraZeneca, the Gates Foundation and the Gavi vaccine alliance to produce more than a billion doses of a COVID-19 vaccine for global supply.