Coronavirus: Who is at risk and how do we know?

Source: SBS and Getty
The last few days have seen a rapid increase in the number of cases in South Korea, Iran and Italy. Now officially a pandemic, the virus has proven adept at crossing borders, with confirmed cases reported in over 100 countries. In the face of this escalating outbreak, it can be difficult to gauge how concerned we should be. What threat does the coronavirus pose to us as individuals? Dr.Satish Nagarajah explains.
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