As COVID-19 has spread across the world it has had major impacts on supply chains. It is reasonable to assume that the impact on trade flows may be even greater than that for the GFC in 2009, where world trade fell by over 20%. Most of this is an entirely natural result of the closure of many production structures around the world. However, some trade impacts are the direct result of trade policy interventions by governments, which presage a more major and long-term impact from the current crisis.