AstraZeneca said on Monday its vaccine for the novel coronavirus, developed along with the University of Oxford, could be around 90 per cent effective under one dosing regimen.
"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.
British Health Secretary Matt Hancock described as "fantastic news".
"These figures... show that the vaccine in the right dosage can be up to 90 per cent effective," he told Sky News, after an announcement from AstraZeneca.
"We've got 100 million doses on order and should all that go well, the bulk of the rollout will be in the new year."
The British drugmaker's preliminary trial results mark a fresh breakthrough in the fight against a pandemic that has killed nearly 1.4 million people and roiled the global economy.
The US has granted India a six-month sanctions waiver to operate the Iranian port of Chabahar, India said on Thursday, boosting its efforts to enhance trade with Afghanistan and Central Asian countries bypassing Pakistan.
US President Donald Trump said on Thursday he had agreed to reduce tariffs on China to 47 per cent in exchange for Beijing resuming US soybean purchases, keeping rare earths exports flowing and cracking down on the illicit trade of fentanyl.
Israeli planes and tanks pounded areas in eastern Gaza on Thursday, Palestinian residents and witnesses said, a day after Israel said it remained committed to a US-backed ceasefire despite launching more lethal bombardments in the territory.
Police have arrested five more suspects linked to the theft of treasures worth $102 million from the Louvre museum's Apollo gallery, the Paris prosecutor said on Thursday, expressing hope the latest developments will help them find the jewels.
Afghanistan and Pakistan will restart peace talks in Istanbul, three sources familiar with the matter said on Thursday, a day after Islamabad said the discussions had ended in failure.