The efficacy of boosters against Covid-19 will likely decline over time, and people may need a fourth shot to increase their protection, Moderna CEO Stephane Bancel has said. ....

Former US President Donald Trump's new social media app, Truth Social, will launch on the iOS platform on February 21, according to a listing on the App Store. ....

Women and girls without a close male relative accompanying them were banned from entering coffee shops in Afghanistan's Herat province, Raha Press reported. ....

Pakistan Prime Minister Imran Khan said he has not decided about the extension of Chief of the Army Staff Gen Qamar Javed Bajwa's tenure, Dawn news reported. ....

Security forces in Kazakhstan say they have killed dozens of anti-government rioters in an operation to restore order in the main city, Almaty. ....

With the US shattering a single-day record with over 1 million Covid-19 cases this week, the Centres for Disease Control and Prevention (CDC) has estimated that the Omicron variant accounted for 95 per cent of new infections last week. ....

At least 30 people were injured after a 5.5-magnitude earthquake jolted Ninglang County in China's Yunnan province two days, local authorities said on Tuesday. ....

Amid rising concerns over a fresh surge in coronavirus disease (Covid-19) cases, doctors in the United States are faced with a peculiar conundrum – they have no ready way of determining which variant of the coronavirus a person is carrying. This is especially troublesome because a high-risk patient infected with the Delta variant would greatly benefit from two particular monoclonal antibody treatments, while they would do little to nothing for a patient infected with the new, highly transmissible Omicron variant – which requires a third ant ....

Brazilian President Jair Bolsonaro was stable but not expected to be discharged after being hospitalised on Monday following an intestinal obstruction, a medical bulletin released by the Vila Nova Star Hospital in Sao Paulo said. ....

Bangladesh Prime Minister Sheikh Hasina has reiterated her commitment to work for the people, despite the threat of "bullets and grenades". ....