15-20% of people who get this illness require hospitalisation. In the worst case scenario where it infects a billion people... you can do the maths. There is a huge potential for disruption to production and supply chains, especially in developing countries with developing healthcare systems.

If this situation gets out of control, it could trigger a global recession. Nobody is buying much from Wuhan for the foreseeable future. Imagine what would happen if it spreads across Asia.