Bharat Biotech's homegrown COVID-19 vaccine has shown an interim vaccine efficacy of 81% in late-stage clinical trials, the Indian company said on Wednesday.
The interim analysis was based on 43 recorded cases of COVID-19 in the trial of 25,800 participants, conducted in partnership with the Indian government's medical research body.
Thirty-six of the 43 cases were recorded in participants who received a placebo, compared with seven cases in people who were given the Bharat Biotech vaccine, pointing to an efficacy rate of 80.6%, the company said.
India had approved the vaccine, branded COVAXIN, in January without late-stage efficacy data, raising questions about its effectiveness.
India's vaccination drive, currently underway, includes COVAXIN and a vaccine developed by Oxford University and AstraZeneca.
Earlier this week, Indian Prime Minister Narendra Modi was inoculated with the first dose of COVAXIN.
A US judge barred the Trump administration from rapidly deporting hundreds if not thousands of migrants to countries other than their own without giving them a chance to show they fear being persecuted, tortured or killed there.
The Trump administration on Thursday ordered a social media vetting for all US visa applicants who have been to the Gaza Strip on or after January 1, 2007, an internal State Department cable seen by Reuters showed, in the latest push to tighten screening of foreign travellers.
Israeli airstrikes hit around 40 targets across the Gaza Strip over the past day, the military said on Friday, hours after Hamas rejected an Israeli ceasefire offer that it said fell short of its demand to agree a full end to the war.
Hamas wants a comprehensive deal to end the war in Gaza and swap all Israeli hostages for Palestinians jailed in Israel, a senior official from the Palestinian group said, rejecting Israel's offer of an interim truce.
US strikes on the Ras Isa fuel port in western Yemen killed at least 38 people on Thursday, Houthi-run media said, one of the deadliest days since the US began its attacks on the group.