The coronavirus pandemic is 'very likely' to cause the worst recession since the Great Depression, with the global economy expected to contract by 3% in 2020. This is according to the International Monetary Fund's latest World Economic Outlook, one of the most closely watched sets of economic forecasts in the world. CNBC's Silvia Amaro spoke with the IMF's chief economist, Gita Gopinath, to understand why the coronavirus crisis is like no other.