Did Covid-19 leak from Wuhan lab? All you need to know about US vs China feud

China has accused the US of "spreading conspiracy theories" after US President Joe Biden asked officials to 'redouble' their efforts to probe the origin of the Covid-19 pandemic. This came amid growing calls for a full scale probe of whether the coronavirus may have escaped from China’s bio lab. Here is what we know so far.

The origins of the novel coronavirus (SARS-CoV-2) which has left around 3.5 million dead and more than 168 million affected around the world remains a mystery. ‘What is the origin of the virus that has ravaged the world’ remains a widely debated topic, with some scientists and politicians maintaining that the possibility of a lab leak of the deadly virus exists. The Wuhan Institute of Virology (WIV) is near the outbreak's known epicentre of Huanan Seafood Market in central China’s Wuhan city, where the virus first emerged in late 2019 and became a pandemic. In the past few days, the theory that the virus emerged from the WIV in China, which was once dismissed, has suddenly gained steam with US President Joe Biden ordering a review of Covid-19 origins.